GNU gdb (GDB) Red Hat Enterprise Linux 7.6.1-115.el7
Copyright (C) 2013 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-redhat-linux-gnu".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
Attaching to process 43932
Reading symbols from /opt/couchbase/bin/memcached...Reading symbols from /usr/lib/debug/opt/couchbase/bin/memcached.debug...done.
done.
Reading symbols from /opt/couchbase/bin/../lib/libnuma.so.1...Reading symbols from /usr/lib/debug/opt/couchbase/lib/libnuma.so.1.0.0.debug...done.
done.
Loaded symbols for /opt/couchbase/bin/../lib/libnuma.so.1
Reading symbols from /opt/couchbase/bin/../lib/libcbsocket.so...Reading symbols from /usr/lib/debug/opt/couchbase/lib/libcbsocket.so.debug...done.
done.
Loaded symbols for /opt/couchbase/bin/../lib/libcbsocket.so
Reading symbols from /opt/couchbase/bin/../lib/crash_engine.so...Reading symbols from /usr/lib/debug/opt/couchbase/lib/crash_engine.so.debug...done.
done.
Loaded symbols for /opt/couchbase/bin/../lib/crash_engine.so
Reading symbols from /opt/couchbase/bin/../lib/libdefault_engine.so...Reading symbols from /usr/lib/debug/opt/couchbase/lib/libdefault_engine.so.debug...done.
done.
Loaded symbols for /opt/couchbase/bin/../lib/libdefault_engine.so
Reading symbols from /opt/couchbase/bin/../lib/libep.so...Reading symbols from /usr/lib/debug/opt/couchbase/lib/libep.so.debug...done.
done.
Loaded symbols for /opt/couchbase/bin/../lib/libep.so
Reading symbols from /opt/couchbase/bin/../lib/libstatistics.so...Reading symbols from /usr/lib/debug/opt/couchbase/lib/libstatistics.so.debug...done.
done.
Loaded symbols for /opt/couchbase/bin/../lib/libstatistics.so
Reading symbols from /opt/couchbase/bin/../lib/libcouchstore.so...Reading symbols from /usr/lib/debug/opt/couchbase/lib/libcouchstore.so.debug...done.
done.
Loaded symbols for /opt/couchbase/bin/../lib/libcouchstore.so
Reading symbols from /opt/couchbase/bin/../lib/libmagma.so...Reading symbols from /usr/lib/debug/opt/couchbase/lib/libmagma.so.debug...done.
done.
Loaded symbols for /opt/couchbase/bin/../lib/libmagma.so
Reading symbols from /opt/couchbase/bin/../lib/libmemcached_logger.so.1.0.0...Reading symbols from /usr/lib/debug/opt/couchbase/lib/libmemcached_logger.so.1.0.0.debug...done.
done.
Loaded symbols for /opt/couchbase/bin/../lib/libmemcached_logger.so.1.0.0
Reading symbols from /opt/couchbase/bin/../lib/libengine_utilities.so...Reading symbols from /usr/lib/debug/opt/couchbase/lib/libengine_utilities.so.debug...done.
done.
Loaded symbols for /opt/couchbase/bin/../lib/libengine_utilities.so
Reading symbols from /opt/couchbase/bin/../lib/libz.so.1...Reading symbols from /usr/lib/debug/opt/couchbase/lib/libz.so.1.2.11.debug...(no debugging symbols found)...done.
(no debugging symbols found)...done.
Loaded symbols for /opt/couchbase/bin/../lib/libz.so.1
Reading symbols from /opt/couchbase/bin/../lib/libdirutils.so...Reading symbols from /usr/lib/debug/opt/couchbase/lib/libdirutils.so.debug...done.
done.
Loaded symbols for /opt/couchbase/bin/../lib/libdirutils.so
Reading symbols from /opt/couchbase/bin/../lib/libcbcompress.so...Reading symbols from /usr/lib/debug/opt/couchbase/lib/libcbcompress.so.debug...done.
done.
Loaded symbols for /opt/couchbase/bin/../lib/libcbcompress.so
Reading symbols from /opt/couchbase/bin/../lib/liblz4.so.1...Reading symbols from /usr/lib/debug/opt/couchbase/lib/liblz4.so.1.9.2.debug...(no debugging symbols found)...done.
(no debugging symbols found)...done.
Loaded symbols for /opt/couchbase/bin/../lib/liblz4.so.1
Reading symbols from /opt/couchbase/bin/../lib/libplatform_so.so.0.1.0...Reading symbols from /usr/lib/debug/opt/couchbase/lib/libplatform_so.so.0.1.0.debug...done.
done.
Loaded symbols for /opt/couchbase/bin/../lib/libplatform_so.so.0.1.0
Reading symbols from /opt/couchbase/bin/../lib/libphosphor.so...Reading symbols from /usr/lib/debug/opt/couchbase/lib/libphosphor.so.debug...done.
done.
Loaded symbols for /opt/couchbase/bin/../lib/libphosphor.so
Reading symbols from /lib64/libdl.so.2...(no debugging symbols found)...done.
Loaded symbols for /lib64/libdl.so.2
Reading symbols from /opt/couchbase/bin/../lib/libJSON_checker.so.1.0.0...Reading symbols from /usr/lib/debug/opt/couchbase/lib/libJSON_checker.so.1.0.0.debug...done.
done.
Loaded symbols for /opt/couchbase/bin/../lib/libJSON_checker.so.1.0.0
Reading symbols from /opt/couchbase/bin/../lib/libsnappy.so.1...Reading symbols from /usr/lib/debug/opt/couchbase/lib/libsnappy.so.1.2.0.debug...done.
done.
Loaded symbols for /opt/couchbase/bin/../lib/libsnappy.so.1
Reading symbols from /opt/couchbase/bin/../lib/libjemalloc.so.2...Reading symbols from /usr/lib/debug/opt/couchbase/lib/libjemalloc.so.2.debug...done.
done.
Loaded symbols for /opt/couchbase/bin/../lib/libjemalloc.so.2
Reading symbols from /opt/couchbase/bin/../lib/libevent_core-2.1.so.7...Reading symbols from /usr/lib/debug/opt/couchbase/lib/libevent_core-2.1.so.7.0.0.debug...done.
done.
Loaded symbols for /opt/couchbase/bin/../lib/libevent_core-2.1.so.7
Reading symbols from /opt/couchbase/bin/../lib/libevent_extra-2.1.so.7...Reading symbols from /usr/lib/debug/opt/couchbase/lib/libevent_extra-2.1.so.7.0.0.debug...done.
done.
Loaded symbols for /opt/couchbase/bin/../lib/libevent_extra-2.1.so.7
Reading symbols from /opt/couchbase/bin/../lib/libevent_pthreads-2.1.so.7...Reading symbols from /usr/lib/debug/opt/couchbase/lib/libevent_pthreads-2.1.so.7.0.0.debug...done.
done.
Loaded symbols for /opt/couchbase/bin/../lib/libevent_pthreads-2.1.so.7
Reading symbols from /opt/couchbase/bin/../lib/libevent_openssl-2.1.so.7...Reading symbols from /usr/lib/debug/opt/couchbase/lib/libevent_openssl-2.1.so.7.0.0.debug...done.
done.
Loaded symbols for /opt/couchbase/bin/../lib/libevent_openssl-2.1.so.7
Reading symbols from /opt/couchbase/bin/../lib/libssl.so.1.1...Reading symbols from /usr/lib/debug/opt/couchbase/lib/libssl.so.1.1.debug...(no debugging symbols found)...done.
(no debugging symbols found)...done.
Loaded symbols for /opt/couchbase/bin/../lib/libssl.so.1.1
Reading symbols from /opt/couchbase/bin/../lib/libcrypto.so.1.1...Reading symbols from /usr/lib/debug/opt/couchbase/lib/libcrypto.so.1.1.debug...(no debugging symbols found)...done.
(no debugging symbols found)...done.
Loaded symbols for /opt/couchbase/bin/../lib/libcrypto.so.1.1
Reading symbols from /opt/couchbase/bin/../lib/libstdc++.so.6...Reading symbols from /usr/lib/debug/opt/couchbase/lib/libstdc++.so.debug...done.
done.
Loaded symbols for /opt/couchbase/bin/../lib/libstdc++.so.6
Reading symbols from /lib64/libm.so.6...(no debugging symbols found)...done.
Loaded symbols for /lib64/libm.so.6
Reading symbols from /opt/couchbase/bin/../lib/libgcc_s.so.1...done.
Loaded symbols for /opt/couchbase/bin/../lib/libgcc_s.so.1
Reading symbols from /lib64/libpthread.so.0...(no debugging symbols found)...done.
[New LWP 43962]
[New LWP 43961]
[New LWP 43960]
[New LWP 43959]
[New LWP 43958]
[New LWP 43957]
[New LWP 43956]
[New LWP 43955]
[New LWP 43954]
[New LWP 43953]
[New LWP 43952]
[New LWP 43951]
[New LWP 43950]
[New LWP 43949]
[New LWP 43948]
[New LWP 43947]
[New LWP 43945]
[New LWP 43944]
[New LWP 43943]
[New LWP 43942]
[New LWP 43941]
[New LWP 43940]
[New LWP 43939]
[New LWP 43938]
[New LWP 43937]
[New LWP 43936]
[New LWP 43935]
[New LWP 43934]
[New LWP 43933]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
Loaded symbols for /lib64/libpthread.so.0
Reading symbols from /lib64/libc.so.6...(no debugging symbols found)...done.
Loaded symbols for /lib64/libc.so.6
Reading symbols from /lib64/ld-linux-x86-64.so.2...(no debugging symbols found)...done.
Loaded symbols for /lib64/ld-linux-x86-64.so.2
Reading symbols from /lib64/librt.so.1...(no debugging symbols found)...done.
Loaded symbols for /lib64/librt.so.1
0x00007f5d64022e63 in epoll_wait () from /lib64/libc.so.6

Thread 30 (Thread 0x7f5d633ff700 (LWP 43933)):
#0  0x00007f5d642fd9f5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
No symbol table info available.
#1  0x00007f5d65dcd8c9 in background_thread_sleep (tsdn=<optimized out>, interval=<optimized out>, info=<optimized out>) at src/background_thread.c:232
        tv = {tv_sec = 1612332863, tv_usec = 262090}
        before_sleep = {ns = 1612332863262090000}
#2  background_work_sleep_once (ind=0, info=<optimized out>, tsdn=<optimized out>) at src/background_thread.c:307
        min_interval = <optimized out>
        narenas = <optimized out>
#3  background_thread0_work (tsd=0x7f5d633e6a60) at src/background_thread.c:452
        created_threads = 0x7f5d633e60e0
        i = <optimized out>
        n_created = <optimized out>
#4  background_work (ind=<optimized out>, tsd=0x7f5d633e6a60) at src/background_thread.c:490
        info = <optimized out>
#5  background_thread_entry (ind_arg=<optimized out>) at src/background_thread.c:522
        thread_ind = <optimized out>
#6  0x00007f5d642f9e65 in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#7  0x00007f5d6402288d in clone () from /lib64/libc.so.6
No symbol table info available.

Thread 29 (Thread 0x7f5d622fe700 (LWP 43934)):
#0  0x00007f5d642fdda2 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
No symbol table info available.
#1  0x00007f5d677f58cd in __gthread_cond_timedwait (__abs_timeout=0x7f5d622e4fa0, __mutex=<optimized out>, __cond=0x7f5d63836138) at /usr/local/include/c++/7.3.0/x86_64-pc-linux-gnu/bits/gthr-default.h:871
No locals.
#2  __wait_until_impl<std::chrono::duration<long, std::ratio<1, 1000000000> > > (__atime=..., __lock=..., this=0x7f5d63836138) at /usr/local/include/c++/7.3.0/condition_variable:166
        __ts = {tv_sec = 1612333070, tv_nsec = 707340281}
#3  wait_until<std::chrono::duration<long, std::ratio<1, 1000000000> > > (__atime=..., __lock=..., this=0x7f5d63836138) at /usr/local/include/c++/7.3.0/condition_variable:106
No locals.
#4  wait_until<std::chrono::_V2::system_clock, std::chrono::duration<long int, std::ratio<1, 1000000000> >, spdlog::details::mpmc_blocking_queue<T>::dequeue_for(T&, std::chrono::milliseconds) [with T = spdlog::details::async_msg]::<lambda()> > (
    __p=..., __atime=..., __lock=..., this=0x7f5d63836138) at /usr/local/include/c++/7.3.0/condition_variable:129
No locals.
#5  wait_for<long int, std::ratio<1, 1000>, spdlog::details::mpmc_blocking_queue<T>::dequeue_for(T&, std::chrono::milliseconds) [with T = spdlog::details::async_msg]::<lambda()> > (__p=..., __rtime=<synthetic pointer>, __lock=..., this=0x7f5d63836138)
    at /usr/local/include/c++/7.3.0/condition_variable:145
No locals.
#6  dequeue_for (wait_duration=..., popped_item=..., this=0x7f5d63836110) at /home/couchbase/jenkins/workspace/couchbase-server-unix/third_party/spdlog/include/spdlog/details/mpmc_blocking_q.h:61
        lock = {_M_device = 0x7f5d63836110, _M_owns = true}
#7  spdlog::details::thread_pool::process_next_msg_ (this=this@entry=0x7f5d63836110) at /home/couchbase/jenkins/workspace/couchbase-server-unix/third_party/spdlog/include/spdlog/details/thread_pool.h:193
        incoming_async_msg = {msg_type = spdlog::details::flush, level = spdlog::level::trace, time = {__d = {__r = 0}}, thread_id = 0, raw = 
{<std::allocator<char>> = {<__gnu_cxx::new_allocator<char>> = {<No data fields>}, <No data fields>}, <fmt::v5::internal::basic_buffer<char>> = {
              _vptr.basic_buffer = 0x7f5d67a16c40 <vtable for fmt::v5::basic_memory_buffer<char, 176ul, std::allocator<char> >+16>, 
              ptr_ = 0x7f5d622e4ed8 "Pushing new cluster config for bucket:[] revision:[12].1\",\"port\":11209} (<ud>@ns_server</ud>) ] Updated global cluster configuration. New revision: 12", size_ = 0, capacity_ = 176}, 
            store_ = "Pushing new cluster config for bucket:[] revision:[12].1\",\"port\":11209} (<ud>@ns_server</ud>) ] Updated global cluster configuration. New revision: 12", '\000' <repeats 25 times>}, msg_id = 0, 
          worker_ptr = {<std::__shared_ptr<spdlog::async_logger, (__gnu_cxx::_Lock_policy)2>> = {<std::__shared_ptr_access<spdlog::async_logger, (__gnu_cxx::_Lock_policy)2, false, false>> = {<No data fields>}, _M_ptr = 0x0, _M_refcount = {
                _M_pi = 0x0}}, <No data fields>}}
#8  0x00007f5d677f5e20 in spdlog::details::thread_pool::worker_loop_ (this=0x7f5d63836110) at /home/couchbase/jenkins/workspace/couchbase-server-unix/third_party/spdlog/include/spdlog/details/thread_pool.h:184
No locals.
#9  0x00007f5d64ae0dcf in std::execute_native_thread_routine (__p=0x7f5d63864f60) at /tmp/deploy/gcc-7.3.0/libstdc++-v3/src/c++11/thread.cc:83
        __t = {_M_t = {
            _M_t = {<std::_Tuple_impl<0, std::thread::_State*, std::default_delete<std::thread::_State> >> = {<std::_Tuple_impl<1, std::default_delete<std::thread::_State> >> = {<std::_Head_base<1, std::default_delete<std::thread::_State>, true>> = {<std::default_delete<std::thread::_State>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::_Head_base<0, std::thread::_State*, false>> = {_M_head_impl = 0x7f5d63864f60}, <No data fields>}, <No data fields>}}}
#10 0x00007f5d642f9e65 in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#11 0x00007f5d6402288d in clone () from /lib64/libc.so.6
No symbol table info available.

Thread 28 (Thread 0x7f5d61afd700 (LWP 43935)):
#0  0x00007f5d642fdda2 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
No symbol table info available.
#1  0x00007f5d677f4f8a in __gthread_cond_timedwait (__abs_timeout=0x7f5d61ae41f0, __mutex=<optimized out>, __cond=<optimized out>) at /usr/local/include/c++/7.3.0/x86_64-pc-linux-gnu/bits/gthr-default.h:871
No locals.
#2  __wait_until_impl<std::chrono::duration<long, std::ratio<1, 1000000000> > > (__atime=..., __lock=..., this=<optimized out>) at /usr/local/include/c++/7.3.0/condition_variable:166
        __ts = {tv_sec = 1612333061, tv_nsec = 707331101}
#3  wait_until<std::chrono::duration<long, std::ratio<1, 1000000000> > > (__atime=..., __lock=..., this=<optimized out>) at /usr/local/include/c++/7.3.0/condition_variable:106
No locals.
#4  wait_until<std::chrono::_V2::system_clock, std::chrono::duration<long int, std::ratio<1, 1000000000> >, spdlog::details::periodic_worker::periodic_worker(const std::function<void()>&, std::chrono::seconds)::<lambda()>::<lambda()> > (__p=..., 
    __atime=..., __lock=..., this=<optimized out>) at /usr/local/include/c++/7.3.0/condition_variable:129
No locals.
#5  wait_for<long int, std::ratio<1>, spdlog::details::periodic_worker::periodic_worker(const std::function<void()>&, std::chrono::seconds)::<lambda()>::<lambda()> > (__p=..., __rtime=..., __lock=..., this=<optimized out>)
    at /usr/local/include/c++/7.3.0/condition_variable:145
No locals.
#6  operator() (__closure=0x7f5d62bfe908) at /home/couchbase/jenkins/workspace/couchbase-server-unix/third_party/spdlog/include/spdlog/details/periodic_worker.h:38
        lock = {_M_device = 0x7f5d62833080, _M_owns = true}
        interval = {__r = 1}
        callback_fun = {<std::_Maybe_unary_or_binary_function<void>> = {<No data fields>}, <std::_Function_base> = {static _M_max_size = 16, static _M_max_align = 8, _M_functor = {_M_unused = {_M_object = 0x7f5d63864960, 
                _M_const_object = 0x7f5d63864960, _M_function_pointer = 0x7f5d63864960, _M_member_pointer = (void (std::_Undefined_class::*)(std::_Undefined_class * const)) 0x7f5d63864960}, 
              _M_pod_data = "`I\206c]\177\000\000\000\000\000\000\000\000\000"}, 
            _M_manager = 0x7f5d677f1ce0 <std::_Function_base::_Base_manager<std::_Bind<void (spdlog::details::registry::*(spdlog::details::registry*))()> >::_M_manager(std::_Any_data&, std::_Any_data const&, std::_Manager_operation)>}, 
          _M_invoker = 0x7f5d677f0f70 <std::_Function_handler<void (), std::_Bind<void (spdlog::details::registry::*(spdlog::details::registry*))()> >::_M_invoke(std::_Any_data const&)>}
        this = 0x7f5d62833070
#7  __invoke_impl<void, spdlog::details::periodic_worker::periodic_worker(const std::function<void()>&, std::chrono::seconds)::<lambda()> > (__f=<optimized out>) at /usr/local/include/c++/7.3.0/bits/invoke.h:60
No locals.
#8  __invoke<spdlog::details::periodic_worker::periodic_worker(const std::function<void()>&, std::chrono::seconds)::<lambda()> > (__fn=<optimized out>) at /usr/local/include/c++/7.3.0/bits/invoke.h:95
No locals.
#9  _M_invoke<0> (this=0x7f5d62bfe908) at /usr/local/include/c++/7.3.0/thread:234
No locals.
#10 operator() (this=0x7f5d62bfe908) at /usr/local/include/c++/7.3.0/thread:243
No locals.
#11 _ZNSt6thread11_State_implINS_8_InvokerISt5tupleIJZN6spdlog7details15periodic_workerC4ERKSt8functionIFvvEENSt6chrono8durationIlSt5ratioILl1ELl1EEEEEUlvE_EEEEE6_M_runEv (this=0x7f5d62bfe900) at /usr/local/include/c++/7.3.0/thread:186
No locals.
#12 0x00007f5d64ae0dcf in std::execute_native_thread_routine (__p=0x7f5d62bfe900) at /tmp/deploy/gcc-7.3.0/libstdc++-v3/src/c++11/thread.cc:83
        __t = {_M_t = {
            _M_t = {<std::_Tuple_impl<0, std::thread::_State*, std::default_delete<std::thread::_State> >> = {<std::_Tuple_impl<1, std::default_delete<std::thread::_State> >> = {<std::_Head_base<1, std::default_delete<std::thread::_State>, true>> = {<std::default_delete<std::thread::_State>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::_Head_base<0, std::thread::_State*, false>> = {_M_head_impl = 0x7f5d62bfe900}, <No data fields>}, <No data fields>}}}
#13 0x00007f5d642f9e65 in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#14 0x00007f5d6402288d in clone () from /lib64/libc.so.6
No symbol table info available.

Thread 27 (Thread 0x7f5d612fc700 (LWP 43936)):
#0  0x00007f5d64017bed in poll () from /lib64/libc.so.6
No symbol table info available.
#1  0x000000000046a1ee in get_command (buffsize=80, buffer=0x7f5d612e31d0 "") at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/daemon/stdin_check.cc:49
        fds = {fd = 0, events = 1, revents = 0}
#2  check_stdin_thread (arg=<optimized out>) at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/daemon/stdin_check.cc:90
        command = "\000\000\000\000\000\000\000\000\177'0d]\177\000\000\240\206\252f]\177", '\000' <repeats 11 times>, "\307/a]\177\000\000\240\253\000\000\000\000\000\000\260\071.a]\177\000\000H\\\206c]\177\000\000\000\000\000\000\000\000\000\000\207\302\253f]\177\000"
        call_exit_handler = true
#3  0x00007f5d66abc2d7 in run (this=0x7f5d63865c30) at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/cb_pthreads.cc:58
No locals.
#4  platform_thread_wrap (arg=0x7f5d63865c30) at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/cb_pthreads.cc:71
        context = {_M_t = {
            _M_t = {<std::_Tuple_impl<0, CouchbaseThread*, std::default_delete<CouchbaseThread> >> = {<std::_Tuple_impl<1, std::default_delete<CouchbaseThread> >> = {<std::_Head_base<1, std::default_delete<CouchbaseThread>, true>> = {<std::default_delete<CouchbaseThread>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::_Head_base<0, CouchbaseThread*, false>> = {_M_head_impl = 0x7f5d63865c30}, <No data fields>}, <No data fields>}}}
#5  0x00007f5d642f9e65 in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#6  0x00007f5d6402288d in clone () from /lib64/libc.so.6
No symbol table info available.

Thread 26 (Thread 0x7f5d60afb700 (LWP 43937)):
#0  0x00007f5d642fd9f5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
No symbol table info available.
#1  0x00007f5d6808eb2b in consume_socket (thread_index=<optimized out>, sp=0x11a1240, ctx=0x119fd20)
    at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/prometheus-cpp/prometheus-cpp-prefix/src/prometheus-cpp/3rdparty/civetweb/src/civetweb.c:18718
No locals.
#2  worker_thread_run (conn=0x11a0950) at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/prometheus-cpp/prometheus-cpp-prefix/src/prometheus-cpp/3rdparty/civetweb/src/civetweb.c:18859
        ctx = 0x119fd20
        thread_index = <optimized out>
        tls = {is_master = 0, thread_idx = 2, user_ptr = 0x0, alpn_proto = 0x0}
#3  worker_thread (thread_func_param=0x11a0950) at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/prometheus-cpp/prometheus-cpp-prefix/src/prometheus-cpp/3rdparty/civetweb/src/civetweb.c:19002
        sa = {__sigaction_handler = {sa_handler = 0x1, sa_sigaction = 0x1}, sa_mask = {__val = {0 <repeats 16 times>}}, sa_flags = 0, sa_restorer = 0x0}
#4  0x00007f5d642f9e65 in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#5  0x00007f5d6402288d in clone () from /lib64/libc.so.6
No symbol table info available.

Thread 25 (Thread 0x7f5d602fa700 (LWP 43938)):
#0  0x00007f5d642fd9f5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
No symbol table info available.
#1  0x00007f5d6808eb2b in consume_socket (thread_index=<optimized out>, sp=0x11a1c28, ctx=0x119fd20)
    at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/prometheus-cpp/prometheus-cpp-prefix/src/prometheus-cpp/3rdparty/civetweb/src/civetweb.c:18718
No locals.
#2  worker_thread_run (conn=0x11a1338) at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/prometheus-cpp/prometheus-cpp-prefix/src/prometheus-cpp/3rdparty/civetweb/src/civetweb.c:18859
        ctx = 0x119fd20
        thread_index = <optimized out>
        tls = {is_master = 0, thread_idx = 3, user_ptr = 0x0, alpn_proto = 0x0}
#3  worker_thread (thread_func_param=0x11a1338) at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/prometheus-cpp/prometheus-cpp-prefix/src/prometheus-cpp/3rdparty/civetweb/src/civetweb.c:19002
        sa = {__sigaction_handler = {sa_handler = 0x1, sa_sigaction = 0x1}, sa_mask = {__val = {0 <repeats 16 times>}}, sa_flags = 0, sa_restorer = 0x0}
#4  0x00007f5d642f9e65 in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#5  0x00007f5d6402288d in clone () from /lib64/libc.so.6
No symbol table info available.

Thread 24 (Thread 0x7f5d5faf9700 (LWP 43939)):
#0  0x00007f5d64017bed in poll () from /lib64/libc.so.6
No symbol table info available.
#1  0x00007f5d68085ad8 in master_thread_run (ctx=0x119fd20) at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/prometheus-cpp/prometheus-cpp-prefix/src/prometheus-cpp/3rdparty/civetweb/src/civetweb.c:19148
        tls = {is_master = 1, thread_idx = 0, user_ptr = 0x0, alpn_proto = 0x0}
        pfd = <optimized out>
        i = <optimized out>
        workerthreadcount = <optimized out>
#2  master_thread (thread_func_param=0x119fd20) at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/prometheus-cpp/prometheus-cpp-prefix/src/prometheus-cpp/3rdparty/civetweb/src/civetweb.c:19243
        sa = {__sigaction_handler = {sa_handler = 0x1, sa_sigaction = 0x1}, sa_mask = {__val = {0 <repeats 16 times>}}, sa_flags = 0, sa_restorer = 0x0}
#3  0x00007f5d642f9e65 in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#4  0x00007f5d6402288d in clone () from /lib64/libc.so.6
No symbol table info available.

Thread 23 (Thread 0x7f5d5f2f8700 (LWP 43940)):
#0  0x00007f5d642fdda2 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
No symbol table info available.
#1  0x0000000000491280 in __gthread_cond_timedwait (__abs_timeout=0x7f5d5f2df1d0, __mutex=<optimized out>, __cond=0x7f5d638370f8) at /usr/local/include/c++/7.3.0/x86_64-pc-linux-gnu/bits/gthr-default.h:871
No locals.
#2  __wait_until_impl<std::chrono::duration<long, std::ratio<1, 1000000000> > > (__atime=..., __lock=<synthetic pointer>, this=0x7f5d638370f8) at /usr/local/include/c++/7.3.0/condition_variable:166
        __ts = {tv_sec = 1612333443, tv_nsec = 257317773}
#3  wait_until<std::chrono::duration<long, std::ratio<1, 1000000000> > > (__atime=..., __lock=<synthetic pointer>, this=0x7f5d638370f8) at /usr/local/include/c++/7.3.0/condition_variable:106
No locals.
#4  wait_for<long, std::ratio<1, 1000000000> > (__rtime=<synthetic pointer>, __lock=<synthetic pointer>, this=0x7f5d638370f8) at /usr/local/include/c++/7.3.0/condition_variable:138
No locals.
#5  ExternalAuthManagerThread::run (this=0x7f5d63837000) at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/daemon/external_auth_manager_thread.cc:229
        now = <optimized out>
        now = <optimized out>
        lock = {_M_device = 0x7f5d638370d0, _M_owns = true}
#6  0x00007f5d66ac720f in Couchbase::Thread::thread_entry (this=0x7f5d63837000) at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/thread.cc:45
No locals.
#7  0x00007f5d66abc2d7 in run (this=0x7f5d63866380) at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/cb_pthreads.cc:58
No locals.
#8  platform_thread_wrap (arg=0x7f5d63866380) at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/cb_pthreads.cc:71
        context = {_M_t = {
            _M_t = {<std::_Tuple_impl<0, CouchbaseThread*, std::default_delete<CouchbaseThread> >> = {<std::_Tuple_impl<1, std::default_delete<CouchbaseThread> >> = {<std::_Head_base<1, std::default_delete<CouchbaseThread>, true>> = {<std::default_delete<CouchbaseThread>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::_Head_base<0, CouchbaseThread*, false>> = {_M_head_impl = 0x7f5d63866380}, <No data fields>}, <No data fields>}}}
#9  0x00007f5d642f9e65 in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#10 0x00007f5d6402288d in clone () from /lib64/libc.so.6
No symbol table info available.

Thread 22 (Thread 0x7f5d5eaf7700 (LWP 43941)):
#0  0x00007f5d642fdda2 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
No symbol table info available.
#1  0x00000000004ef6a6 in __gthread_cond_timedwait (__abs_timeout=0x7f5d5eade1f0, __mutex=<optimized out>, __cond=0x7f5d6282e8f8) at /usr/local/include/c++/7.3.0/x86_64-pc-linux-gnu/bits/gthr-default.h:871
No locals.
#2  __wait_until_impl<std::chrono::duration<long, std::ratio<1, 1000000000> > > (__atime=..., __lock=..., this=0x7f5d6282e8f8) at /usr/local/include/c++/7.3.0/condition_variable:166
        __ts = {tv_sec = 1612419244, tv_nsec = 106600757}
#3  wait_until<std::chrono::duration<long, std::ratio<1, 1000000000> > > (__atime=..., __lock=..., this=0x7f5d6282e8f8) at /usr/local/include/c++/7.3.0/condition_variable:106
No locals.
#4  wait_for<long, std::ratio<1> > (__rtime=..., __lock=..., this=0x7f5d6282e8f8) at /usr/local/include/c++/7.3.0/condition_variable:138
No locals.
#5  AuditImpl::consume_events (this=0x7f5d6282e500) at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/auditd/src/audit.cc:414
        lock = {_M_device = 0x7f5d6282e928, _M_owns = true}
#6  0x00007f5d66abc2d7 in run (this=0x7f5d638660e0) at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/cb_pthreads.cc:58
No locals.
#7  platform_thread_wrap (arg=0x7f5d638660e0) at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/cb_pthreads.cc:71
        context = {_M_t = {
            _M_t = {<std::_Tuple_impl<0, CouchbaseThread*, std::default_delete<CouchbaseThread> >> = {<std::_Tuple_impl<1, std::default_delete<CouchbaseThread> >> = {<std::_Head_base<1, std::default_delete<CouchbaseThread>, true>> = {<std::default_delete<CouchbaseThread>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::_Head_base<0, CouchbaseThread*, false>> = {_M_head_impl = 0x7f5d638660e0}, <No data fields>}, <No data fields>}}}
#8  0x00007f5d642f9e65 in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#9  0x00007f5d6402288d in clone () from /lib64/libc.so.6
No symbol table info available.

Thread 21 (Thread 0x7f5d5e2f6700 (LWP 43942)):
#0  0x00007f5d64022e63 in epoll_wait () from /lib64/libc.so.6
No symbol table info available.
#1  0x00007f5d65b943c5 in epoll_dispatch (base=0x7f5d6381cf00, tv=<optimized out>) at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/libevent/libevent-prefix/src/libevent/epoll.c:465
        epollop = 0x7f5d63831640
        events = 0x7f5d63859a80
        i = <optimized out>
        res = <optimized out>
        timeout = <optimized out>
        __func__ = "epoll_dispatch"
#2  0x00007f5d65b8b376 in event_base_loop (base=0x7f5d6381cf00, flags=flags@entry=0) at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/libevent/libevent-prefix/src/libevent/event.c:1998
        evsel = 0x7f5d65d9ec20 <epollops>
        tv = {tv_sec = 140038988850944, tv_usec = 140039129000298}
        tv_p = <optimized out>
        res = <optimized out>
        done = 0
        retval = 0
        __func__ = "event_base_loop"
#3  0x000000000046adf9 in worker_libevent (arg=0x7f5d625cc000) at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/daemon/thread.cc:195
        me = @0x7f5d625cc000: {thread_id = 140038988850944, base = 0x7f5d6381cf00, notify_event = {ev_evcallback = {evcb_active_next = {tqe_next = 0x0, tqe_prev = 0x0}, evcb_flags = 130, evcb_pri = 0 '\000', evcb_closure = 2 '\002', evcb_cb_union = {
                evcb_callback = 0x46d1d0 <FrontEndThread::libevent_callback(int, short, void*)>, evcb_selfcb = 0x46d1d0 <FrontEndThread::libevent_callback(int, short, void*)>, 
                evcb_evfinalize = 0x46d1d0 <FrontEndThread::libevent_callback(int, short, void*)>, evcb_cbfinalize = 0x46d1d0 <FrontEndThread::libevent_callback(int, short, void*)>}, evcb_arg = 0x7f5d625cc000}, ev_timeout_pos = {
              ev_next_with_common_timeout = {tqe_next = 0xffffffff, tqe_prev = 0x0}, min_heap_idx = -1}, ev_fd = 20, ev_base = 0x7f5d6381cf00, ev_ = {ev_io = {ev_io_next = {le_next = 0x0, le_prev = 0x7f5d6385c940}, ev_timeout = {tv_sec = 0, 
                  tv_usec = 0}}, ev_signal = {ev_signal_next = {le_next = 0x0, le_prev = 0x7f5d6385c940}, ev_ncalls = 0, ev_pncalls = 0x0}}, ev_events = 18, ev_res = 0, ev_timeout = {tv_sec = 0, tv_usec = 0}}, notify = {_M_elems = {20, 21}}, 
          mutex = {<std::__mutex_base> = {_M_mutex = {__data = {__lock = 0, __count = 0, __owner = 0, __nusers = 0, __kind = 0, __spins = 0, __list = {__prev = 0x0, __next = 0x0}}, __size = '\000' <repeats 39 times>, __align = 0}}, <No data fields>}, 
          pending_io = {mutex = {<std::__mutex_base> = {_M_mutex = {__data = {__lock = 0, __count = 0, __owner = 0, __nusers = 0, __kind = 0, __spins = 0, __list = {__prev = 0x0, __next = 0x0}}, __size = '\000' <repeats 39 times>, 
                  __align = 0}}, <No data fields>}, map = {
              _M_h = {<std::__detail::_Hashtable_base<Connection*, std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, std::__detail::_Select1st, std::equal_to<Connection*>, std::hash<Connection*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Hashtable_traits<false, false, true> >> = {<std::__detail::_Hash_code_base<Connection*, std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, std::__detail::_Select1st, std::hash<Connection*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, false>> = {<std::__detail::_Hashtable_ebo_helper<0, std::__detail::_Select1st, true>> = {<std::__detail::_Select1st> = {<No data fields>}, <No data fields>}, <std::__detail::_Hashtable_ebo_helper<1, std::hash<Connection*>, true>> = {<std::hash<Connection*>> = {<std::__hash_base<unsigned long, Connection*>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::__detail::_Hashtable_ebo_helper<2, std::__detail::_Mod_range_hashing, true>> = {<std::__detail::_Mod_range_hashing> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::__detail::_Hashtable_ebo_helper<0, std::equal_to<Connection*>, true>> = {<std::equal_to<Connection*>> = {<std::binary_function<Connection*, Connection*, bool>> = {<No data fields>}, <No data fields>}, <No data fields>}, <No data fields>}, <std::__detail::_Map_base<Connection*, std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, std::allocator<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > > >, std::__detail::_Select1st, std::equal_to<Connection*>, std::hash<Connection*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, false, true>, true>> = {<No data fields>}, <std::__detail::_Insert<Connection*, std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, std::allocator<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > > >, std::__detail::_Select1st, std::equal_to<Connection*>, std::hash<Connection*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, false, true>, false>> = {<std::__detail::_Insert_base<Connection*, std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, std::allocator<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > > >, std::__detail::_Select1st, std::equal_to<Connection*>, std::hash<Connection*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, false, true> >> = {<No data fields>}, <No data fields>}, <std::__detail::_Rehash_base<Connection*, std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, std::allocator<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > > >, std::__detail::_Select1st, std::equal_to<Connection*>, std::hash<Connection*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, false, true>, std::integral_constant<bool, true> >> = {<No data fields>}, <std::__detail::_Equality<Connection*, std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, std::allocator<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > > >, std::__detail::_Select1st, std::equal_to<Connection*>, std::hash<Connection*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, false, true>, true>> = {<No data fields>}, <std::__detail::_Hashtable_alloc<std::allocator<std::__detail::_Hash_node<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, false> > >> = {<std::__detail::_Hashtable_ebo_helper<0, std::allocator<std::__detail::_Hash_node<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, false> >, true>> = {<std::allocator<std::__detail::_Hash_node<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, false> >> = {<__gnu_cxx::new_allocator<std::__detail::_Hash_node<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, false> >> = {<No data fields>}, <No data fields>}, <No data fields>}, <No data fields>}, _M_buckets = 0x7f5d625cc118, _M_bucket_count = 1, 
                _M_before_begin = {_M_nxt = 0x0}, _M_element_count = 0, _M_rehash_policy = {static _S_growth_factor = 2, _M_max_load_factor = 1, _M_next_resize = 0}, _M_single_bucket = 0x0}}}, notification = {mutex = {<std::__mutex_base> = {_M_mutex = {
                  __data = {__lock = 0, __count = 0, __owner = 0, __nusers = 0, __kind = 0, __spins = 0, __list = {__prev = 0x0, __next = 0x0}}, __size = '\000' <repeats 39 times>, __align = 0}}, <No data fields>}, 
            connections = {<std::_Vector_base<Connection*, std::allocator<Connection*> >> = {_M_impl = {<std::allocator<Connection*>> = {<__gnu_cxx::new_allocator<Connection*>> = {<No data fields>}, <No data fields>}, _M_start = 0x0, _M_finish = 0x0, 
                  _M_end_of_storage = 0x0}}, <No data fields>}}, index = 0, subdoc_op = {m_path = 0x7f5d6282ea00, m_jsn = 0x11a2ef0, m_match = {type = 0, status = 0, matchres = 0, sflags = 0, match_level = 0, position = 0, num_siblings = 0, 
              num_children = 0, immediate_parent_found = 0 '\000', get_last = 0 '\000', extra_options = Subdoc::Match::GET_MATCH_ONLY, unique_item_found = 0 '\000', loc_deepest = {at = 0x0, length = 0}, loc_key = {at = 0x0, length = 0}, 
              ensure_unique = {at = 0x0, length = 0}}, m_optype = {code = 0 '\000'}, m_doc = {at = 0x0, length = 0}, m_userval = {at = 0x0, length = 0}, m_result = 0x0}, validator = {instance = {state = 5, 
              stack = {<std::stack<JSON_checker::Modes, std::deque<JSON_checker::Modes, std::allocator<JSON_checker::Modes> > >> = {c = {<std::_Deque_base<JSON_checker::Modes, std::allocator<JSON_checker::Modes> >> = {
                      _M_impl = {<std::allocator<JSON_checker::Modes>> = {<__gnu_cxx::new_allocator<JSON_checker::Modes>> = {<No data fields>}, <No data fields>}, _M_map = 0x7f5d6282de80, _M_map_size = 8, _M_start = {_M_cur = 0x7f5d62827a00, 
                          _M_first = 0x7f5d62827a00, _M_last = 0x7f5d62827c00, _M_node = 0x7f5d6282de98}, _M_finish = {_M_cur = 0x7f5d62827a01, _M_first = 0x7f5d62827a00, _M_last = 0x7f5d62827c00, 
                          _M_node = 0x7f5d6282de98}}}, <No data fields>}}, <No data fields>}}}, running = {_M_base = {static _S_alignment = 1, _M_i = true}, static is_always_lock_free = true}, scratch_buffer = {_M_elems = '\000' <repeats 2047 times>}, 
          shutdown_next_log = 0, new_conn_queue = {
            connections = {<folly::SynchronizedBase<folly::Synchronized<std::vector<FrontEndThread::ConnectionQueue::Entry, std::allocator<FrontEndThread::ConnectionQueue::Entry> >, std::mutex>, (folly::detail::MutexLevel)0>> = {<No data fields>}, 
              static nxCopyCtor = <error reading variable: No global symbol "folly::Synchronized<std::vector<FrontEndThread::ConnectionQueue::Entry, std::allocator<FrontEndThread::ConnectionQueue::Entry> >, std::mutex>::nxCopyCtor".>, 
              static nxMoveCtor = <error reading variable: No global symbol "folly::Synchronized<std::vector<FrontEndThread::ConnectionQueue::Entry, std::allocator<FrontEndThread::ConnectionQueue::Entry> >, std::mutex>::nxMoveCtor".>, 
              datum_ = {<std::_Vector_base<FrontEndThread::ConnectionQueue::Entry, std::allocator<FrontEndThread::ConnectionQueue::Entry> >> = {
                  _M_impl = {<std::allocator<FrontEndThread::ConnectionQueue::Entry>> = {<__gnu_cxx::new_allocator<FrontEndThread::ConnectionQueue::Entry>> = {<No data fields>}, <No data fields>}, _M_start = 0x0, _M_finish = 0x0, 
                    _M_end_of_storage = 0x0}}, <No data fields>}, mutex_ = {<std::__mutex_base> = {_M_mutex = {__data = {__lock = 0, __count = 0, __owner = 0, __nusers = 0, __kind = 0, __spins = 0, __list = {__prev = 0x0, __next = 0x0}}, 
                    __size = '\000' <repeats 39 times>, __align = 0}}, <No data fields>}}}}
#4  0x00007f5d66abc2d7 in run (this=0x7f5d62906790) at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/cb_pthreads.cc:58
No locals.
#5  platform_thread_wrap (arg=0x7f5d62906790) at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/cb_pthreads.cc:71
        context = {_M_t = {
            _M_t = {<std::_Tuple_impl<0, CouchbaseThread*, std::default_delete<CouchbaseThread> >> = {<std::_Tuple_impl<1, std::default_delete<CouchbaseThread> >> = {<std::_Head_base<1, std::default_delete<CouchbaseThread>, true>> = {<std::default_delete<CouchbaseThread>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::_Head_base<0, CouchbaseThread*, false>> = {_M_head_impl = 0x7f5d62906790}, <No data fields>}, <No data fields>}}}
#6  0x00007f5d642f9e65 in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#7  0x00007f5d6402288d in clone () from /lib64/libc.so.6
No symbol table info available.

Thread 20 (Thread 0x7f5d5daf5700 (LWP 43943)):
#0  0x00007f5d64022e63 in epoll_wait () from /lib64/libc.so.6
No symbol table info available.
#1  0x00007f5d65b943c5 in epoll_dispatch (base=0x7f5d6381d200, tv=<optimized out>) at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/libevent/libevent-prefix/src/libevent/epoll.c:465
        epollop = 0x7f5d63831660
        events = 0x7f5d63859c00
        i = <optimized out>
        res = <optimized out>
        timeout = <optimized out>
        __func__ = "epoll_dispatch"
#2  0x00007f5d65b8b376 in event_base_loop (base=0x7f5d6381d200, flags=flags@entry=0) at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/libevent/libevent-prefix/src/libevent/event.c:1998
        evsel = 0x7f5d65d9ec20 <epollops>
        tv = {tv_sec = 140039005541040, tv_usec = 140039129000298}
        tv_p = <optimized out>
        res = <optimized out>
        done = 0
        retval = 0
        __func__ = "event_base_loop"
#3  0x000000000046adf9 in worker_libevent (arg=0x7f5d625ccaa8) at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/daemon/thread.cc:195
        me = @0x7f5d625ccaa8: {thread_id = 140038980458240, base = 0x7f5d6381d200, notify_event = {ev_evcallback = {evcb_active_next = {tqe_next = 0x0, tqe_prev = 0x7f5d6385c930}, evcb_flags = 130, evcb_pri = 0 '\000', evcb_closure = 2 '\002', 
              evcb_cb_union = {evcb_callback = 0x46d1d0 <FrontEndThread::libevent_callback(int, short, void*)>, evcb_selfcb = 0x46d1d0 <FrontEndThread::libevent_callback(int, short, void*)>, 
                evcb_evfinalize = 0x46d1d0 <FrontEndThread::libevent_callback(int, short, void*)>, evcb_cbfinalize = 0x46d1d0 <FrontEndThread::libevent_callback(int, short, void*)>}, evcb_arg = 0x7f5d625ccaa8}, ev_timeout_pos = {
              ev_next_with_common_timeout = {tqe_next = 0xffffffff, tqe_prev = 0x0}, min_heap_idx = -1}, ev_fd = 26, ev_base = 0x7f5d6381d200, ev_ = {ev_io = {ev_io_next = {le_next = 0x0, le_prev = 0x7f5d6385c910}, ev_timeout = {tv_sec = 0, 
                  tv_usec = 0}}, ev_signal = {ev_signal_next = {le_next = 0x0, le_prev = 0x7f5d6385c910}, ev_ncalls = 0, ev_pncalls = 0x0}}, ev_events = 18, ev_res = 2, ev_timeout = {tv_sec = 0, tv_usec = 0}}, notify = {_M_elems = {26, 27}}, 
          mutex = {<std::__mutex_base> = {_M_mutex = {__data = {__lock = 0, __count = 0, __owner = 0, __nusers = 0, __kind = 0, __spins = 0, __list = {__prev = 0x0, __next = 0x0}}, __size = '\000' <repeats 39 times>, __align = 0}}, <No data fields>}, 
          pending_io = {mutex = {<std::__mutex_base> = {_M_mutex = {__data = {__lock = 0, __count = 0, __owner = 0, __nusers = 0, __kind = 0, __spins = 0, __list = {__prev = 0x0, __next = 0x0}}, __size = '\000' <repeats 39 times>, 
                  __align = 0}}, <No data fields>}, map = {
              _M_h = {<std::__detail::_Hashtable_base<Connection*, std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, std::__detail::_Select1st, std::equal_to<Connection*>, std::hash<Connection*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Hashtable_traits<false, false, true> >> = {<std::__detail::_Hash_code_base<Connection*, std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, std::__detail::_Select1st, std::hash<Connection*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, false>> = {<std::__detail::_Hashtable_ebo_helper<0, std::__detail::_Select1st, true>> = {<std::__detail::_Select1st> = {<No data fields>}, <No data fields>}, <std::__detail::_Hashtable_ebo_helper<1, std::hash<Connection*>, true>> = {<std::hash<Connection*>> = {<std::__hash_base<unsigned long, Connection*>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::__detail::_Hashtable_ebo_helper<2, std::__detail::_Mod_range_hashing, true>> = {<std::__detail::_Mod_range_hashing> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::__detail::_Hashtable_ebo_helper<0, std::equal_to<Connection*>, true>> = {<std::equal_to<Connection*>> = {<std::binary_function<Connection*, Connection*, bool>> = {<No data fields>}, <No data fields>}, <No data fields>}, <No data fields>}, <std::__detail::_Map_base<Connection*, std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, std::allocator<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > > >, std::__detail::_Select1st, std::equal_to<Connection*>, std::hash<Connection*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, false, true>, true>> = {<No data fields>}, <std::__detail::_Insert<Connection*, std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, std::allocator<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > > >, std::__detail::_Select1st, std::equal_to<Connection*>, std::hash<Connection*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, false, true>, false>> = {<std::__detail::_Insert_base<Connection*, std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, std::allocator<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > > >, std::__detail::_Select1st, std::equal_to<Connection*>, std::hash<Connection*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, false, true> >> = {<No data fields>}, <No data fields>}, <std::__detail::_Rehash_base<Connection*, std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, std::allocator<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > > >, std::__detail::_Select1st, std::equal_to<Connection*>, std::hash<Connection*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, false, true>, std::integral_constant<bool, true> >> = {<No data fields>}, <std::__detail::_Equality<Connection*, std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, std::allocator<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > > >, std::__detail::_Select1st, std::equal_to<Connection*>, std::hash<Connection*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, false, true>, true>> = {<No data fields>}, <std::__detail::_Hashtable_alloc<std::allocator<std::__detail::_Hash_node<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, false> > >> = {<std::__detail::_Hashtable_ebo_helper<0, std::allocator<std::__detail::_Hash_node<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, false> >, true>> = {<std::allocator<std::__detail::_Hash_node<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, false> >> = {<__gnu_cxx::new_allocator<std::__detail::_Hash_node<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, false> >> = {<No data fields>}, <No data fields>}, <No data fields>}, <No data fields>}, _M_buckets = 0x7f5d625ccbc0, _M_bucket_count = 1, 
                _M_before_begin = {_M_nxt = 0x0}, _M_element_count = 0, _M_rehash_policy = {static _S_growth_factor = 2, _M_max_load_factor = 1, _M_next_resize = 0}, _M_single_bucket = 0x0}}}, notification = {mutex = {<std::__mutex_base> = {_M_mutex = {
                  __data = {__lock = 0, __count = 0, __owner = 0, __nusers = 0, __kind = 0, __spins = 0, __list = {__prev = 0x0, __next = 0x0}}, __size = '\000' <repeats 39 times>, __align = 0}}, <No data fields>}, 
            connections = {<std::_Vector_base<Connection*, std::allocator<Connection*> >> = {_M_impl = {<std::allocator<Connection*>> = {<__gnu_cxx::new_allocator<Connection*>> = {<No data fields>}, <No data fields>}, _M_start = 0x0, _M_finish = 0x0, 
                  _M_end_of_storage = 0x0}}, <No data fields>}}, index = 1, subdoc_op = {m_path = 0x7f5d6282ef00, m_jsn = 0x11a36d0, m_match = {type = 0, status = 0, matchres = 0, sflags = 0, match_level = 0, position = 0, num_siblings = 0, 
              num_children = 0, immediate_parent_found = 0 '\000', get_last = 0 '\000', extra_options = Subdoc::Match::GET_MATCH_ONLY, unique_item_found = 0 '\000', loc_deepest = {at = 0x0, length = 0}, loc_key = {at = 0x0, length = 0}, 
              ensure_unique = {at = 0x0, length = 0}}, m_optype = {code = 0 '\000'}, m_doc = {at = 0x0, length = 0}, m_userval = {at = 0x0, length = 0}, m_result = 0x0}, validator = {instance = {state = 5, 
              stack = {<std::stack<JSON_checker::Modes, std::deque<JSON_checker::Modes, std::allocator<JSON_checker::Modes> > >> = {c = {<std::_Deque_base<JSON_checker::Modes, std::allocator<JSON_checker::Modes> >> = {
                      _M_impl = {<std::allocator<JSON_checker::Modes>> = {<__gnu_cxx::new_allocator<JSON_checker::Modes>> = {<No data fields>}, <No data fields>}, _M_map = 0x7f5d6282dec0, _M_map_size = 8, _M_start = {_M_cur = 0x7f5d62827800, 
                          _M_first = 0x7f5d62827800, _M_last = 0x7f5d62827a00, _M_node = 0x7f5d6282ded8}, _M_finish = {_M_cur = 0x7f5d62827801, _M_first = 0x7f5d62827800, _M_last = 0x7f5d62827a00, 
                          _M_node = 0x7f5d6282ded8}}}, <No data fields>}}, <No data fields>}}}, running = {_M_base = {static _S_alignment = 1, _M_i = true}, static is_always_lock_free = true}, scratch_buffer = {
            _M_elems = "\201\361", '\000' <repeats 2045 times>}, shutdown_next_log = 0, new_conn_queue = {
            connections = {<folly::SynchronizedBase<folly::Synchronized<std::vector<FrontEndThread::ConnectionQueue::Entry, std::allocator<FrontEndThread::ConnectionQueue::Entry> >, std::mutex>, (folly::detail::MutexLevel)0>> = {<No data fields>}, 
              static nxCopyCtor = <error reading variable: No global symbol "folly::Synchronized<std::vector<FrontEndThread::ConnectionQueue::Entry, std::allocator<FrontEndThread::ConnectionQueue::Entry> >, std::mutex>::nxCopyCtor".>, 
              static nxMoveCtor = <error reading variable: No global symbol "folly::Synchronized<std::vector<FrontEndThread::ConnectionQueue::Entry, std::allocator<FrontEndThread::ConnectionQueue::Entry> >, std::mutex>::nxMoveCtor".>, 
              datum_ = {<std::_Vector_base<FrontEndThread::ConnectionQueue::Entry, std::allocator<FrontEndThread::ConnectionQueue::Entry> >> = {
                  _M_impl = {<std::allocator<FrontEndThread::ConnectionQueue::Entry>> = {<__gnu_cxx::new_allocator<FrontEndThread::ConnectionQueue::Entry>> = {<No data fields>}, <No data fields>}, _M_start = 0x0, _M_finish = 0x0, 
                    _M_end_of_storage = 0x0}}, <No data fields>}, mutex_ = {<std::__mutex_base> = {_M_mutex = {__data = {__lock = 0, __count = 0, __owner = 0, __nusers = 0, __kind = 0, __spins = 0, __list = {__prev = 0x0, __next = 0x0}}, 
                    __size = '\000' <repeats 39 times>, __align = 0}}, <No data fields>}}}}
#4  0x00007f5d66abc2d7 in run (this=0x7f5d62906940) at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/cb_pthreads.cc:58
No locals.
#5  platform_thread_wrap (arg=0x7f5d62906940) at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/cb_pthreads.cc:71
        context = {_M_t = {
            _M_t = {<std::_Tuple_impl<0, CouchbaseThread*, std::default_delete<CouchbaseThread> >> = {<std::_Tuple_impl<1, std::default_delete<CouchbaseThread> >> = {<std::_Head_base<1, std::default_delete<CouchbaseThread>, true>> = {<std::default_delete<CouchbaseThread>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::_Head_base<0, CouchbaseThread*, false>> = {_M_head_impl = 0x7f5d62906940}, <No data fields>}, <No data fields>}}}
#6  0x00007f5d642f9e65 in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#7  0x00007f5d6402288d in clone () from /lib64/libc.so.6
No symbol table info available.

Thread 19 (Thread 0x7f5d5d2f4700 (LWP 43944)):
#0  0x00007f5d64022e63 in epoll_wait () from /lib64/libc.so.6
No symbol table info available.
#1  0x00007f5d65b943c5 in epoll_dispatch (base=0x7f5d6381d500, tv=<optimized out>) at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/libevent/libevent-prefix/src/libevent/epoll.c:465
        epollop = 0x7f5d63831700
        events = 0x7f5d63859d80
        i = <optimized out>
        res = <optimized out>
        timeout = <optimized out>
        __func__ = "epoll_dispatch"
#2  0x00007f5d65b8b376 in event_base_loop (base=0x7f5d6381d500, flags=flags@entry=0) at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/libevent/libevent-prefix/src/libevent/event.c:1998
        evsel = 0x7f5d65d9ec20 <epollops>
        tv = {tv_sec = 140038972065536, tv_usec = 140039129000298}
        tv_p = <optimized out>
        res = <optimized out>
        done = 0
        retval = 0
        __func__ = "event_base_loop"
#3  0x000000000046adf9 in worker_libevent (arg=0x7f5d625cd550) at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/daemon/thread.cc:195
        me = @0x7f5d625cd550: {thread_id = 140038972065536, base = 0x7f5d6381d500, notify_event = {ev_evcallback = {evcb_active_next = {tqe_next = 0x0, tqe_prev = 0x7f5d6385c7e0}, evcb_flags = 130, evcb_pri = 0 '\000', evcb_closure = 2 '\002', 
              evcb_cb_union = {evcb_callback = 0x46d1d0 <FrontEndThread::libevent_callback(int, short, void*)>, evcb_selfcb = 0x46d1d0 <FrontEndThread::libevent_callback(int, short, void*)>, 
                evcb_evfinalize = 0x46d1d0 <FrontEndThread::libevent_callback(int, short, void*)>, evcb_cbfinalize = 0x46d1d0 <FrontEndThread::libevent_callback(int, short, void*)>}, evcb_arg = 0x7f5d625cd550}, ev_timeout_pos = {
              ev_next_with_common_timeout = {tqe_next = 0xffffffff, tqe_prev = 0x0}, min_heap_idx = -1}, ev_fd = 32, ev_base = 0x7f5d6381d500, ev_ = {ev_io = {ev_io_next = {le_next = 0x0, le_prev = 0x7f5d6385c8f0}, ev_timeout = {tv_sec = 0, 
                  tv_usec = 0}}, ev_signal = {ev_signal_next = {le_next = 0x0, le_prev = 0x7f5d6385c8f0}, ev_ncalls = 0, ev_pncalls = 0x0}}, ev_events = 18, ev_res = 2, ev_timeout = {tv_sec = 0, tv_usec = 0}}, notify = {_M_elems = {32, 33}}, 
          mutex = {<std::__mutex_base> = {_M_mutex = {__data = {__lock = 0, __count = 0, __owner = 0, __nusers = 0, __kind = 0, __spins = 0, __list = {__prev = 0x0, __next = 0x0}}, __size = '\000' <repeats 39 times>, __align = 0}}, <No data fields>}, 
          pending_io = {mutex = {<std::__mutex_base> = {_M_mutex = {__data = {__lock = 0, __count = 0, __owner = 0, __nusers = 0, __kind = 0, __spins = 0, __list = {__prev = 0x0, __next = 0x0}}, __size = '\000' <repeats 39 times>, 
                  __align = 0}}, <No data fields>}, map = {
              _M_h = {<std::__detail::_Hashtable_base<Connection*, std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, std::__detail::_Select1st, std::equal_to<Connection*>, std::hash<Connection*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Hashtable_traits<false, false, true> >> = {<std::__detail::_Hash_code_base<Connection*, std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, std::__detail::_Select1st, std::hash<Connection*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, false>> = {<std::__detail::_Hashtable_ebo_helper<0, std::__detail::_Select1st, true>> = {<std::__detail::_Select1st> = {<No data fields>}, <No data fields>}, <std::__detail::_Hashtable_ebo_helper<1, std::hash<Connection*>, true>> = {<std::hash<Connection*>> = {<std::__hash_base<unsigned long, Connection*>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::__detail::_Hashtable_ebo_helper<2, std::__detail::_Mod_range_hashing, true>> = {<std::__detail::_Mod_range_hashing> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::__detail::_Hashtable_ebo_helper<0, std::equal_to<Connection*>, true>> = {<std::equal_to<Connection*>> = {<std::binary_function<Connection*, Connection*, bool>> = {<No data fields>}, <No data fields>}, <No data fields>}, <No data fields>}, <std::__detail::_Map_base<Connection*, std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, std::allocator<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > > >, std::__detail::_Select1st, std::equal_to<Connection*>, std::hash<Connection*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, false, true>, true>> = {<No data fields>}, <std::__detail::_Insert<Connection*, std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, std::allocator<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > > >, std::__detail::_Select1st, std::equal_to<Connection*>, std::hash<Connection*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, false, true>, false>> = {<std::__detail::_Insert_base<Connection*, std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, std::allocator<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > > >, std::__detail::_Select1st, std::equal_to<Connection*>, std::hash<Connection*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, false, true> >> = {<No data fields>}, <No data fields>}, <std::__detail::_Rehash_base<Connection*, std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, std::allocator<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > > >, std::__detail::_Select1st, std::equal_to<Connection*>, std::hash<Connection*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, false, true>, std::integral_constant<bool, true> >> = {<No data fields>}, <std::__detail::_Equality<Connection*, std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, std::allocator<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > > >, std::__detail::_Select1st, std::equal_to<Connection*>, std::hash<Connection*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, false, true>, true>> = {<No data fields>}, <std::__detail::_Hashtable_alloc<std::allocator<std::__detail::_Hash_node<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, false> > >> = {<std::__detail::_Hashtable_ebo_helper<0, std::allocator<std::__detail::_Hash_node<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, false> >, true>> = {<std::allocator<std::__detail::_Hash_node<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, false> >> = {<__gnu_cxx::new_allocator<std::__detail::_Hash_node<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, false> >> = {<No data fields>}, <No data fields>}, <No data fields>}, <No data fields>}, _M_buckets = 0x7f5d625cd668, _M_bucket_count = 1, 
                _M_before_begin = {_M_nxt = 0x0}, _M_element_count = 0, _M_rehash_policy = {static _S_growth_factor = 2, _M_max_load_factor = 1, _M_next_resize = 0}, _M_single_bucket = 0x0}}}, notification = {mutex = {<std::__mutex_base> = {_M_mutex = {
                  __data = {__lock = 0, __count = 0, __owner = 0, __nusers = 0, __kind = 0, __spins = 0, __list = {__prev = 0x0, __next = 0x0}}, __size = '\000' <repeats 39 times>, __align = 0}}, <No data fields>}, 
            connections = {<std::_Vector_base<Connection*, std::allocator<Connection*> >> = {_M_impl = {<std::allocator<Connection*>> = {<__gnu_cxx::new_allocator<Connection*>> = {<No data fields>}, <No data fields>}, _M_start = 0x0, _M_finish = 0x0, 
                  _M_end_of_storage = 0x0}}, <No data fields>}}, index = 2, subdoc_op = {m_path = 0x7f5d6282f400, m_jsn = 0x11a3eb0, m_match = {type = 0, status = 0, matchres = 0, sflags = 0, match_level = 0, position = 0, num_siblings = 0, 
              num_children = 0, immediate_parent_found = 0 '\000', get_last = 0 '\000', extra_options = Subdoc::Match::GET_MATCH_ONLY, unique_item_found = 0 '\000', loc_deepest = {at = 0x0, length = 0}, loc_key = {at = 0x0, length = 0}, 
              ensure_unique = {at = 0x0, length = 0}}, m_optype = {code = 0 '\000'}, m_doc = {at = 0x0, length = 0}, m_userval = {at = 0x0, length = 0}, m_result = 0x0}, validator = {instance = {state = 5, 
              stack = {<std::stack<JSON_checker::Modes, std::deque<JSON_checker::Modes, std::allocator<JSON_checker::Modes> > >> = {c = {<std::_Deque_base<JSON_checker::Modes, std::allocator<JSON_checker::Modes> >> = {
                      _M_impl = {<std::allocator<JSON_checker::Modes>> = {<__gnu_cxx::new_allocator<JSON_checker::Modes>> = {<No data fields>}, <No data fields>}, _M_map = 0x7f5d6282de40, _M_map_size = 8, _M_start = {_M_cur = 0x7f5d62827c00, 
                          _M_first = 0x7f5d62827c00, _M_last = 0x7f5d62827e00, _M_node = 0x7f5d6282de58}, _M_finish = {_M_cur = 0x7f5d62827c01, _M_first = 0x7f5d62827c00, _M_last = 0x7f5d62827e00, 
                          _M_node = 0x7f5d6282de58}}}, <No data fields>}}, <No data fields>}}}, running = {_M_base = {static _S_alignment = 1, _M_i = true}, static is_always_lock_free = true}, scratch_buffer = {
            _M_elems = "\201\264", '\000' <repeats 2045 times>}, shutdown_next_log = 0, new_conn_queue = {
            connections = {<folly::SynchronizedBase<folly::Synchronized<std::vector<FrontEndThread::ConnectionQueue::Entry, std::allocator<FrontEndThread::ConnectionQueue::Entry> >, std::mutex>, (folly::detail::MutexLevel)0>> = {<No data fields>}, 
              static nxCopyCtor = <error reading variable: No global symbol "folly::Synchronized<std::vector<FrontEndThread::ConnectionQueue::Entry, std::allocator<FrontEndThread::ConnectionQueue::Entry> >, std::mutex>::nxCopyCtor".>, 
              static nxMoveCtor = <error reading variable: No global symbol "folly::Synchronized<std::vector<FrontEndThread::ConnectionQueue::Entry, std::allocator<FrontEndThread::ConnectionQueue::Entry> >, std::mutex>::nxMoveCtor".>, 
              datum_ = {<std::_Vector_base<FrontEndThread::ConnectionQueue::Entry, std::allocator<FrontEndThread::ConnectionQueue::Entry> >> = {
                  _M_impl = {<std::allocator<FrontEndThread::ConnectionQueue::Entry>> = {<__gnu_cxx::new_allocator<FrontEndThread::ConnectionQueue::Entry>> = {<No data fields>}, <No data fields>}, _M_start = 0x0, _M_finish = 0x0, 
                    _M_end_of_storage = 0x0}}, <No data fields>}, mutex_ = {<std::__mutex_base> = {_M_mutex = {__data = {__lock = 0, __count = 0, __owner = 0, __nusers = 0, __kind = 0, __spins = 0, __list = {__prev = 0x0, __next = 0x0}}, 
                    __size = '\000' <repeats 39 times>, __align = 0}}, <No data fields>}}}}
#4  0x00007f5d66abc2d7 in run (this=0x7f5d62906a30) at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/cb_pthreads.cc:58
No locals.
#5  platform_thread_wrap (arg=0x7f5d62906a30) at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/cb_pthreads.cc:71
        context = {_M_t = {
            _M_t = {<std::_Tuple_impl<0, CouchbaseThread*, std::default_delete<CouchbaseThread> >> = {<std::_Tuple_impl<1, std::default_delete<CouchbaseThread> >> = {<std::_Head_base<1, std::default_delete<CouchbaseThread>, true>> = {<std::default_delete<CouchbaseThread>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::_Head_base<0, CouchbaseThread*, false>> = {_M_head_impl = 0x7f5d62906a30}, <No data fields>}, <No data fields>}}}
#6  0x00007f5d642f9e65 in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#7  0x00007f5d6402288d in clone () from /lib64/libc.so.6
No symbol table info available.

Thread 18 (Thread 0x7f5d5caf3700 (LWP 43945)):
#0  0x00007f5d64022e63 in epoll_wait () from /lib64/libc.so.6
No symbol table info available.
#1  0x00007f5d65b943c5 in epoll_dispatch (base=0x7f5d6381d800, tv=<optimized out>) at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/libevent/libevent-prefix/src/libevent/epoll.c:465
        epollop = 0x7f5d63831720
        events = 0x7f5d63859f00
        i = <optimized out>
        res = <optimized out>
        timeout = <optimized out>
        __func__ = "epoll_dispatch"
#2  0x00007f5d65b8b376 in event_base_loop (base=0x7f5d6381d800, flags=flags@entry=0) at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/libevent/libevent-prefix/src/libevent/event.c:1998
        evsel = 0x7f5d65d9ec20 <epollops>
        tv = {tv_sec = 140038963672832, tv_usec = 140039129000298}
        tv_p = <optimized out>
        res = <optimized out>
        done = 0
        retval = 0
        __func__ = "event_base_loop"
#3  0x000000000046adf9 in worker_libevent (arg=0x7f5d625cdff8) at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/daemon/thread.cc:195
        me = @0x7f5d625cdff8: {thread_id = 140038963672832, base = 0x7f5d6381d800, notify_event = {ev_evcallback = {evcb_active_next = {tqe_next = 0x0, tqe_prev = 0x7f5d6385c7d0}, evcb_flags = 130, evcb_pri = 0 '\000', evcb_closure = 2 '\002', 
              evcb_cb_union = {evcb_callback = 0x46d1d0 <FrontEndThread::libevent_callback(int, short, void*)>, evcb_selfcb = 0x46d1d0 <FrontEndThread::libevent_callback(int, short, void*)>, 
                evcb_evfinalize = 0x46d1d0 <FrontEndThread::libevent_callback(int, short, void*)>, evcb_cbfinalize = 0x46d1d0 <FrontEndThread::libevent_callback(int, short, void*)>}, evcb_arg = 0x7f5d625cdff8}, ev_timeout_pos = {
              ev_next_with_common_timeout = {tqe_next = 0xffffffff, tqe_prev = 0x0}, min_heap_idx = -1}, ev_fd = 38, ev_base = 0x7f5d6381d800, ev_ = {ev_io = {ev_io_next = {le_next = 0x0, le_prev = 0x7f5d6385c8d0}, ev_timeout = {tv_sec = 0, 
                  tv_usec = 0}}, ev_signal = {ev_signal_next = {le_next = 0x0, le_prev = 0x7f5d6385c8d0}, ev_ncalls = 0, ev_pncalls = 0x0}}, ev_events = 18, ev_res = 2, ev_timeout = {tv_sec = 0, tv_usec = 0}}, notify = {_M_elems = {38, 39}}, 
          mutex = {<std::__mutex_base> = {_M_mutex = {__data = {__lock = 0, __count = 0, __owner = 0, __nusers = 0, __kind = 0, __spins = 0, __list = {__prev = 0x0, __next = 0x0}}, __size = '\000' <repeats 39 times>, __align = 0}}, <No data fields>}, 
          pending_io = {mutex = {<std::__mutex_base> = {_M_mutex = {__data = {__lock = 0, __count = 0, __owner = 0, __nusers = 0, __kind = 0, __spins = 0, __list = {__prev = 0x0, __next = 0x0}}, __size = '\000' <repeats 39 times>, 
                  __align = 0}}, <No data fields>}, map = {
              _M_h = {<std::__detail::_Hashtable_base<Connection*, std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, std::__detail::_Select1st, std::equal_to<Connection*>, std::hash<Connection*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Hashtable_traits<false, false, true> >> = {<std::__detail::_Hash_code_base<Connection*, std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, std::__detail::_Select1st, std::hash<Connection*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, false>> = {<std::__detail::_Hashtable_ebo_helper<0, std::__detail::_Select1st, true>> = {<std::__detail::_Select1st> = {<No data fields>}, <No data fields>}, <std::__detail::_Hashtable_ebo_helper<1, std::hash<Connection*>, true>> = {<std::hash<Connection*>> = {<std::__hash_base<unsigned long, Connection*>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::__detail::_Hashtable_ebo_helper<2, std::__detail::_Mod_range_hashing, true>> = {<std::__detail::_Mod_range_hashing> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::__detail::_Hashtable_ebo_helper<0, std::equal_to<Connection*>, true>> = {<std::equal_to<Connection*>> = {<std::binary_function<Connection*, Connection*, bool>> = {<No data fields>}, <No data fields>}, <No data fields>}, <No data fields>}, <std::__detail::_Map_base<Connection*, std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, std::allocator<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > > >, std::__detail::_Select1st, std::equal_to<Connection*>, std::hash<Connection*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, false, true>, true>> = {<No data fields>}, <std::__detail::_Insert<Connection*, std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, std::allocator<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > > >, std::__detail::_Select1st, std::equal_to<Connection*>, std::hash<Connection*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, false, true>, false>> = {<std::__detail::_Insert_base<Connection*, std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, std::allocator<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > > >, std::__detail::_Select1st, std::equal_to<Connection*>, std::hash<Connection*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, false, true> >> = {<No data fields>}, <No data fields>}, <std::__detail::_Rehash_base<Connection*, std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, std::allocator<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > > >, std::__detail::_Select1st, std::equal_to<Connection*>, std::hash<Connection*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, false, true>, std::integral_constant<bool, true> >> = {<No data fields>}, <std::__detail::_Equality<Connection*, std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, std::allocator<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > > >, std::__detail::_Select1st, std::equal_to<Connection*>, std::hash<Connection*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, false, true>, true>> = {<No data fields>}, <std::__detail::_Hashtable_alloc<std::allocator<std::__detail::_Hash_node<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, false> > >> = {<std::__detail::_Hashtable_ebo_helper<0, std::allocator<std::__detail::_Hash_node<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, false> >, true>> = {<std::allocator<std::__detail::_Hash_node<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, false> >> = {<__gnu_cxx::new_allocator<std::__detail::_Hash_node<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, false> >> = {<No data fields>}, <No data fields>}, <No data fields>}, <No data fields>}, _M_buckets = 0x7f5d625ce110, _M_bucket_count = 1, 
                _M_before_begin = {_M_nxt = 0x0}, _M_element_count = 0, _M_rehash_policy = {static _S_growth_factor = 2, _M_max_load_factor = 1, _M_next_resize = 0}, _M_single_bucket = 0x0}}}, notification = {mutex = {<std::__mutex_base> = {_M_mutex = {
                  __data = {__lock = 0, __count = 0, __owner = 0, __nusers = 0, __kind = 0, __spins = 0, __list = {__prev = 0x0, __next = 0x0}}, __size = '\000' <repeats 39 times>, __align = 0}}, <No data fields>}, 
            connections = {<std::_Vector_base<Connection*, std::allocator<Connection*> >> = {_M_impl = {<std::allocator<Connection*>> = {<__gnu_cxx::new_allocator<Connection*>> = {<No data fields>}, <No data fields>}, _M_start = 0x0, _M_finish = 0x0, 
                  _M_end_of_storage = 0x0}}, <No data fields>}}, index = 3, subdoc_op = {m_path = 0x7f5d6282f900, m_jsn = 0x11a4690, m_match = {type = 0, status = 0, matchres = 0, sflags = 0, match_level = 0, position = 0, num_siblings = 0, 
              num_children = 0, immediate_parent_found = 0 '\000', get_last = 0 '\000', extra_options = Subdoc::Match::GET_MATCH_ONLY, unique_item_found = 0 '\000', loc_deepest = {at = 0x0, length = 0}, loc_key = {at = 0x0, length = 0}, 
              ensure_unique = {at = 0x0, length = 0}}, m_optype = {code = 0 '\000'}, m_doc = {at = 0x0, length = 0}, m_userval = {at = 0x0, length = 0}, m_result = 0x0}, validator = {instance = {state = 5, 
              stack = {<std::stack<JSON_checker::Modes, std::deque<JSON_checker::Modes, std::allocator<JSON_checker::Modes> > >> = {c = {<std::_Deque_base<JSON_checker::Modes, std::allocator<JSON_checker::Modes> >> = {
                      _M_impl = {<std::allocator<JSON_checker::Modes>> = {<__gnu_cxx::new_allocator<JSON_checker::Modes>> = {<No data fields>}, <No data fields>}, _M_map = 0x7f5d6282df80, _M_map_size = 8, _M_start = {_M_cur = 0x7f5d62827e00, 
                          _M_first = 0x7f5d62827e00, _M_last = 0x7f5d62828000, _M_node = 0x7f5d6282df98}, _M_finish = {_M_cur = 0x7f5d62827e01, _M_first = 0x7f5d62827e00, _M_last = 0x7f5d62828000, 
                          _M_node = 0x7f5d6282df98}}}, <No data fields>}}, <No data fields>}}}, running = {_M_base = {static _S_alignment = 1, _M_i = true}, static is_always_lock_free = true}, scratch_buffer = {
            _M_elems = "\201\264", '\000' <repeats 2045 times>}, shutdown_next_log = 0, new_conn_queue = {
            connections = {<folly::SynchronizedBase<folly::Synchronized<std::vector<FrontEndThread::ConnectionQueue::Entry, std::allocator<FrontEndThread::ConnectionQueue::Entry> >, std::mutex>, (folly::detail::MutexLevel)0>> = {<No data fields>}, 
              static nxCopyCtor = <error reading variable: No global symbol "folly::Synchronized<std::vector<FrontEndThread::ConnectionQueue::Entry, std::allocator<FrontEndThread::ConnectionQueue::Entry> >, std::mutex>::nxCopyCtor".>, 
              static nxMoveCtor = <error reading variable: No global symbol "folly::Synchronized<std::vector<FrontEndThread::ConnectionQueue::Entry, std::allocator<FrontEndThread::ConnectionQueue::Entry> >, std::mutex>::nxMoveCtor".>, 
              datum_ = {<std::_Vector_base<FrontEndThread::ConnectionQueue::Entry, std::allocator<FrontEndThread::ConnectionQueue::Entry> >> = {
                  _M_impl = {<std::allocator<FrontEndThread::ConnectionQueue::Entry>> = {<__gnu_cxx::new_allocator<FrontEndThread::ConnectionQueue::Entry>> = {<No data fields>}, <No data fields>}, _M_start = 0x0, _M_finish = 0x0, 
                    _M_end_of_storage = 0x0}}, <No data fields>}, mutex_ = {<std::__mutex_base> = {_M_mutex = {__data = {__lock = 0, __count = 0, __owner = 0, __nusers = 0, __kind = 0, __spins = 0, __list = {__prev = 0x0, __next = 0x0}}, 
                    __size = '\000' <repeats 39 times>, __align = 0}}, <No data fields>}}}}
#4  0x00007f5d66abc2d7 in run (this=0x7f5d629068e0) at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/cb_pthreads.cc:58
No locals.
#5  platform_thread_wrap (arg=0x7f5d629068e0) at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/cb_pthreads.cc:71
        context = {_M_t = {
            _M_t = {<std::_Tuple_impl<0, CouchbaseThread*, std::default_delete<CouchbaseThread> >> = {<std::_Tuple_impl<1, std::default_delete<CouchbaseThread> >> = {<std::_Head_base<1, std::default_delete<CouchbaseThread>, true>> = {<std::default_delete<CouchbaseThread>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::_Head_base<0, CouchbaseThread*, false>> = {_M_head_impl = 0x7f5d629068e0}, <No data fields>}, <No data fields>}}}
#6  0x00007f5d642f9e65 in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#7  0x00007f5d6402288d in clone () from /lib64/libc.so.6
No symbol table info available.

Thread 17 (Thread 0x7f5d57fff700 (LWP 43947)):
#0  0x00007f5d64022e63 in epoll_wait () from /lib64/libc.so.6
No symbol table info available.
#1  0x00007f5d65b943c5 in epoll_dispatch (base=0x7f5d6381db00, tv=<optimized out>) at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/libevent/libevent-prefix/src/libevent/epoll.c:465
        epollop = 0x7f5d63831740
        events = 0x7f5d6385a080
        i = <optimized out>
        res = <optimized out>
        timeout = <optimized out>
        __func__ = "epoll_dispatch"
#2  0x00007f5d65b8b376 in event_base_loop (base=0x7f5d6381db00, flags=flags@entry=0) at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/libevent/libevent-prefix/src/libevent/event.c:1998
        evsel = 0x7f5d65d9ec20 <epollops>
        tv = {tv_sec = 140038885078784, tv_usec = 140039129000298}
        tv_p = <optimized out>
        res = <optimized out>
        done = 0
        retval = 0
        __func__ = "event_base_loop"
#3  0x000000000046adf9 in worker_libevent (arg=0x7f5d625ceaa0) at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/daemon/thread.cc:195
        me = @0x7f5d625ceaa0: {thread_id = 140038885078784, base = 0x7f5d6381db00, notify_event = {ev_evcallback = {evcb_active_next = {tqe_next = 0x0, tqe_prev = 0x0}, evcb_flags = 130, evcb_pri = 0 '\000', evcb_closure = 2 '\002', evcb_cb_union = {
                evcb_callback = 0x46d1d0 <FrontEndThread::libevent_callback(int, short, void*)>, evcb_selfcb = 0x46d1d0 <FrontEndThread::libevent_callback(int, short, void*)>, 
                evcb_evfinalize = 0x46d1d0 <FrontEndThread::libevent_callback(int, short, void*)>, evcb_cbfinalize = 0x46d1d0 <FrontEndThread::libevent_callback(int, short, void*)>}, evcb_arg = 0x7f5d625ceaa0}, ev_timeout_pos = {
              ev_next_with_common_timeout = {tqe_next = 0xffffffff, tqe_prev = 0x0}, min_heap_idx = -1}, ev_fd = 44, ev_base = 0x7f5d6381db00, ev_ = {ev_io = {ev_io_next = {le_next = 0x0, le_prev = 0x7f5d6385c790}, ev_timeout = {tv_sec = 0, 
                  tv_usec = 0}}, ev_signal = {ev_signal_next = {le_next = 0x0, le_prev = 0x7f5d6385c790}, ev_ncalls = 0, ev_pncalls = 0x0}}, ev_events = 18, ev_res = 0, ev_timeout = {tv_sec = 0, tv_usec = 0}}, notify = {_M_elems = {44, 45}}, 
          mutex = {<std::__mutex_base> = {_M_mutex = {__data = {__lock = 0, __count = 0, __owner = 0, __nusers = 0, __kind = 0, __spins = 0, __list = {__prev = 0x0, __next = 0x0}}, __size = '\000' <repeats 39 times>, __align = 0}}, <No data fields>}, 
          pending_io = {mutex = {<std::__mutex_base> = {_M_mutex = {__data = {__lock = 0, __count = 0, __owner = 0, __nusers = 0, __kind = 0, __spins = 0, __list = {__prev = 0x0, __next = 0x0}}, __size = '\000' <repeats 39 times>, 
                  __align = 0}}, <No data fields>}, map = {
              _M_h = {<std::__detail::_Hashtable_base<Connection*, std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, std::__detail::_Select1st, std::equal_to<Connection*>, std::hash<Connection*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Hashtable_traits<false, false, true> >> = {<std::__detail::_Hash_code_base<Connection*, std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, std::__detail::_Select1st, std::hash<Connection*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, false>> = {<std::__detail::_Hashtable_ebo_helper<0, std::__detail::_Select1st, true>> = {<std::__detail::_Select1st> = {<No data fields>}, <No data fields>}, <std::__detail::_Hashtable_ebo_helper<1, std::hash<Connection*>, true>> = {<std::hash<Connection*>> = {<std::__hash_base<unsigned long, Connection*>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::__detail::_Hashtable_ebo_helper<2, std::__detail::_Mod_range_hashing, true>> = {<std::__detail::_Mod_range_hashing> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::__detail::_Hashtable_ebo_helper<0, std::equal_to<Connection*>, true>> = {<std::equal_to<Connection*>> = {<std::binary_function<Connection*, Connection*, bool>> = {<No data fields>}, <No data fields>}, <No data fields>}, <No data fields>}, <std::__detail::_Map_base<Connection*, std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, std::allocator<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > > >, std::__detail::_Select1st, std::equal_to<Connection*>, std::hash<Connection*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, false, true>, true>> = {<No data fields>}, <std::__detail::_Insert<Connection*, std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, std::allocator<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > > >, std::__detail::_Select1st, std::equal_to<Connection*>, std::hash<Connection*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, false, true>, false>> = {<std::__detail::_Insert_base<Connection*, std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, std::allocator<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > > >, std::__detail::_Select1st, std::equal_to<Connection*>, std::hash<Connection*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, false, true> >> = {<No data fields>}, <No data fields>}, <std::__detail::_Rehash_base<Connection*, std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, std::allocator<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > > >, std::__detail::_Select1st, std::equal_to<Connection*>, std::hash<Connection*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, false, true>, std::integral_constant<bool, true> >> = {<No data fields>}, <std::__detail::_Equality<Connection*, std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, std::allocator<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > > >, std::__detail::_Select1st, std::equal_to<Connection*>, std::hash<Connection*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, false, true>, true>> = {<No data fields>}, <std::__detail::_Hashtable_alloc<std::allocator<std::__detail::_Hash_node<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, false> > >> = {<std::__detail::_Hashtable_ebo_helper<0, std::allocator<std::__detail::_Hash_node<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, false> >, true>> = {<std::allocator<std::__detail::_Hash_node<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, false> >> = {<__gnu_cxx::new_allocator<std::__detail::_Hash_node<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, false> >> = {<No data fields>}, <No data fields>}, <No data fields>}, <No data fields>}, _M_buckets = 0x7f5d625cebb8, _M_bucket_count = 1, 
                _M_before_begin = {_M_nxt = 0x0}, _M_element_count = 0, _M_rehash_policy = {static _S_growth_factor = 2, _M_max_load_factor = 1, _M_next_resize = 0}, _M_single_bucket = 0x0}}}, notification = {mutex = {<std::__mutex_base> = {_M_mutex = {
                  __data = {__lock = 0, __count = 0, __owner = 0, __nusers = 0, __kind = 0, __spins = 0, __list = {__prev = 0x0, __next = 0x0}}, __size = '\000' <repeats 39 times>, __align = 0}}, <No data fields>}, 
            connections = {<std::_Vector_base<Connection*, std::allocator<Connection*> >> = {_M_impl = {<std::allocator<Connection*>> = {<__gnu_cxx::new_allocator<Connection*>> = {<No data fields>}, <No data fields>}, _M_start = 0x0, _M_finish = 0x0, 
                  _M_end_of_storage = 0x0}}, <No data fields>}}, index = 4, subdoc_op = {m_path = 0x7f5d6282fe00, m_jsn = 0x11a4e70, m_match = {type = 0, status = 0, matchres = 0, sflags = 0, match_level = 0, position = 0, num_siblings = 0, 
              num_children = 0, immediate_parent_found = 0 '\000', get_last = 0 '\000', extra_options = Subdoc::Match::GET_MATCH_ONLY, unique_item_found = 0 '\000', loc_deepest = {at = 0x0, length = 0}, loc_key = {at = 0x0, length = 0}, 
              ensure_unique = {at = 0x0, length = 0}}, m_optype = {code = 0 '\000'}, m_doc = {at = 0x0, length = 0}, m_userval = {at = 0x0, length = 0}, m_result = 0x0}, validator = {instance = {state = 5, 
              stack = {<std::stack<JSON_checker::Modes, std::deque<JSON_checker::Modes, std::allocator<JSON_checker::Modes> > >> = {c = {<std::_Deque_base<JSON_checker::Modes, std::allocator<JSON_checker::Modes> >> = {
                      _M_impl = {<std::allocator<JSON_checker::Modes>> = {<__gnu_cxx::new_allocator<JSON_checker::Modes>> = {<No data fields>}, <No data fields>}, _M_map = 0x7f5d6282ddc0, _M_map_size = 8, _M_start = {_M_cur = 0x7f5d63820000, 
                          _M_first = 0x7f5d63820000, _M_last = 0x7f5d63820200, _M_node = 0x7f5d6282ddd8}, _M_finish = {_M_cur = 0x7f5d63820001, _M_first = 0x7f5d63820000, _M_last = 0x7f5d63820200, 
                          _M_node = 0x7f5d6282ddd8}}}, <No data fields>}}, <No data fields>}}}, running = {_M_base = {static _S_alignment = 1, _M_i = true}, static is_always_lock_free = true}, scratch_buffer = {_M_elems = '\000' <repeats 2047 times>}, 
          shutdown_next_log = 0, new_conn_queue = {
            connections = {<folly::SynchronizedBase<folly::Synchronized<std::vector<FrontEndThread::ConnectionQueue::Entry, std::allocator<FrontEndThread::ConnectionQueue::Entry> >, std::mutex>, (folly::detail::MutexLevel)0>> = {<No data fields>}, 
              static nxCopyCtor = <error reading variable: No global symbol "folly::Synchronized<std::vector<FrontEndThread::ConnectionQueue::Entry, std::allocator<FrontEndThread::ConnectionQueue::Entry> >, std::mutex>::nxCopyCtor".>, 
              static nxMoveCtor = <error reading variable: No global symbol "folly::Synchronized<std::vector<FrontEndThread::ConnectionQueue::Entry, std::allocator<FrontEndThread::ConnectionQueue::Entry> >, std::mutex>::nxMoveCtor".>, 
              datum_ = {<std::_Vector_base<FrontEndThread::ConnectionQueue::Entry, std::allocator<FrontEndThread::ConnectionQueue::Entry> >> = {
                  _M_impl = {<std::allocator<FrontEndThread::ConnectionQueue::Entry>> = {<__gnu_cxx::new_allocator<FrontEndThread::ConnectionQueue::Entry>> = {<No data fields>}, <No data fields>}, _M_start = 0x0, _M_finish = 0x0, 
                    _M_end_of_storage = 0x0}}, <No data fields>}, mutex_ = {<std::__mutex_base> = {_M_mutex = {__data = {__lock = 0, __count = 0, __owner = 0, __nusers = 0, __kind = 0, __spins = 0, __list = {__prev = 0x0, __next = 0x0}}, 
                    __size = '\000' <repeats 39 times>, __align = 0}}, <No data fields>}}}}
#4  0x00007f5d66abc2d7 in run (this=0x7f5d62906850) at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/cb_pthreads.cc:58
No locals.
#5  platform_thread_wrap (arg=0x7f5d62906850) at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/cb_pthreads.cc:71
        context = {_M_t = {
            _M_t = {<std::_Tuple_impl<0, CouchbaseThread*, std::default_delete<CouchbaseThread> >> = {<std::_Tuple_impl<1, std::default_delete<CouchbaseThread> >> = {<std::_Head_base<1, std::default_delete<CouchbaseThread>, true>> = {<std::default_delete<CouchbaseThread>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::_Head_base<0, CouchbaseThread*, false>> = {_M_head_impl = 0x7f5d62906850}, <No data fields>}, <No data fields>}}}
#6  0x00007f5d642f9e65 in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#7  0x00007f5d6402288d in clone () from /lib64/libc.so.6
No symbol table info available.

Thread 16 (Thread 0x7f5d577fe700 (LWP 43948)):
#0  0x00007f5d64022e63 in epoll_wait () from /lib64/libc.so.6
No symbol table info available.
#1  0x00007f5d65b943c5 in epoll_dispatch (base=0x7f5d6381de00, tv=<optimized out>) at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/libevent/libevent-prefix/src/libevent/epoll.c:465
        epollop = 0x7f5d63830000
        events = 0x7f5d6385a200
        i = <optimized out>
        res = <optimized out>
        timeout = <optimized out>
        __func__ = "epoll_dispatch"
#2  0x00007f5d65b8b376 in event_base_loop (base=0x7f5d6381de00, flags=flags@entry=0) at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/libevent/libevent-prefix/src/libevent/event.c:1998
        evsel = 0x7f5d65d9ec20 <epollops>
        tv = {tv_sec = 140038980362928, tv_usec = 140039129000298}
        tv_p = <optimized out>
        res = <optimized out>
        done = 0
        retval = 0
        __func__ = "event_base_loop"
#3  0x000000000046adf9 in worker_libevent (arg=0x7f5d625cf548) at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/daemon/thread.cc:195
        me = @0x7f5d625cf548: {thread_id = 140038876686080, base = 0x7f5d6381de00, notify_event = {ev_evcallback = {evcb_active_next = {tqe_next = 0x0, tqe_prev = 0x0}, evcb_flags = 130, evcb_pri = 0 '\000', evcb_closure = 2 '\002', evcb_cb_union = {
                evcb_callback = 0x46d1d0 <FrontEndThread::libevent_callback(int, short, void*)>, evcb_selfcb = 0x46d1d0 <FrontEndThread::libevent_callback(int, short, void*)>, 
                evcb_evfinalize = 0x46d1d0 <FrontEndThread::libevent_callback(int, short, void*)>, evcb_cbfinalize = 0x46d1d0 <FrontEndThread::libevent_callback(int, short, void*)>}, evcb_arg = 0x7f5d625cf548}, ev_timeout_pos = {
              ev_next_with_common_timeout = {tqe_next = 0xffffffff, tqe_prev = 0x0}, min_heap_idx = -1}, ev_fd = 50, ev_base = 0x7f5d6381de00, ev_ = {ev_io = {ev_io_next = {le_next = 0x0, le_prev = 0x7f5d6385c830}, ev_timeout = {tv_sec = 0, 
                  tv_usec = 0}}, ev_signal = {ev_signal_next = {le_next = 0x0, le_prev = 0x7f5d6385c830}, ev_ncalls = 0, ev_pncalls = 0x0}}, ev_events = 18, ev_res = 0, ev_timeout = {tv_sec = 0, tv_usec = 0}}, notify = {_M_elems = {50, 51}}, 
          mutex = {<std::__mutex_base> = {_M_mutex = {__data = {__lock = 0, __count = 0, __owner = 0, __nusers = 0, __kind = 0, __spins = 0, __list = {__prev = 0x0, __next = 0x0}}, __size = '\000' <repeats 39 times>, __align = 0}}, <No data fields>}, 
          pending_io = {mutex = {<std::__mutex_base> = {_M_mutex = {__data = {__lock = 0, __count = 0, __owner = 0, __nusers = 0, __kind = 0, __spins = 0, __list = {__prev = 0x0, __next = 0x0}}, __size = '\000' <repeats 39 times>, 
                  __align = 0}}, <No data fields>}, map = {
              _M_h = {<std::__detail::_Hashtable_base<Connection*, std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, std::__detail::_Select1st, std::equal_to<Connection*>, std::hash<Connection*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Hashtable_traits<false, false, true> >> = {<std::__detail::_Hash_code_base<Connection*, std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, std::__detail::_Select1st, std::hash<Connection*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, false>> = {<std::__detail::_Hashtable_ebo_helper<0, std::__detail::_Select1st, true>> = {<std::__detail::_Select1st> = {<No data fields>}, <No data fields>}, <std::__detail::_Hashtable_ebo_helper<1, std::hash<Connection*>, true>> = {<std::hash<Connection*>> = {<std::__hash_base<unsigned long, Connection*>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::__detail::_Hashtable_ebo_helper<2, std::__detail::_Mod_range_hashing, true>> = {<std::__detail::_Mod_range_hashing> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::__detail::_Hashtable_ebo_helper<0, std::equal_to<Connection*>, true>> = {<std::equal_to<Connection*>> = {<std::binary_function<Connection*, Connection*, bool>> = {<No data fields>}, <No data fields>}, <No data fields>}, <No data fields>}, <std::__detail::_Map_base<Connection*, std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, std::allocator<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > > >, std::__detail::_Select1st, std::equal_to<Connection*>, std::hash<Connection*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, false, true>, true>> = {<No data fields>}, <std::__detail::_Insert<Connection*, std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, std::allocator<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > > >, std::__detail::_Select1st, std::equal_to<Connection*>, std::hash<Connection*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, false, true>, false>> = {<std::__detail::_Insert_base<Connection*, std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, std::allocator<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > > >, std::__detail::_Select1st, std::equal_to<Connection*>, std::hash<Connection*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, false, true> >> = {<No data fields>}, <No data fields>}, <std::__detail::_Rehash_base<Connection*, std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, std::allocator<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > > >, std::__detail::_Select1st, std::equal_to<Connection*>, std::hash<Connection*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, false, true>, std::integral_constant<bool, true> >> = {<No data fields>}, <std::__detail::_Equality<Connection*, std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, std::allocator<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > > >, std::__detail::_Select1st, std::equal_to<Connection*>, std::hash<Connection*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, false, true>, true>> = {<No data fields>}, <std::__detail::_Hashtable_alloc<std::allocator<std::__detail::_Hash_node<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, false> > >> = {<std::__detail::_Hashtable_ebo_helper<0, std::allocator<std::__detail::_Hash_node<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, false> >, true>> = {<std::allocator<std::__detail::_Hash_node<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, false> >> = {<__gnu_cxx::new_allocator<std::__detail::_Hash_node<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, false> >> = {<No data fields>}, <No data fields>}, <No data fields>}, <No data fields>}, _M_buckets = 0x7f5d625cf660, _M_bucket_count = 1, 
                _M_before_begin = {_M_nxt = 0x0}, _M_element_count = 0, _M_rehash_policy = {static _S_growth_factor = 2, _M_max_load_factor = 1, _M_next_resize = 0}, _M_single_bucket = 0x0}}}, notification = {mutex = {<std::__mutex_base> = {_M_mutex = {
                  __data = {__lock = 0, __count = 0, __owner = 0, __nusers = 0, __kind = 0, __spins = 0, __list = {__prev = 0x0, __next = 0x0}}, __size = '\000' <repeats 39 times>, __align = 0}}, <No data fields>}, 
            connections = {<std::_Vector_base<Connection*, std::allocator<Connection*> >> = {_M_impl = {<std::allocator<Connection*>> = {<__gnu_cxx::new_allocator<Connection*>> = {<No data fields>}, <No data fields>}, _M_start = 0x0, _M_finish = 0x0, 
                  _M_end_of_storage = 0x0}}, <No data fields>}}, index = 5, subdoc_op = {m_path = 0x7f5d62830300, m_jsn = 0x11a5650, m_match = {type = 0, status = 0, matchres = 0, sflags = 0, match_level = 0, position = 0, num_siblings = 0, 
              num_children = 0, immediate_parent_found = 0 '\000', get_last = 0 '\000', extra_options = Subdoc::Match::GET_MATCH_ONLY, unique_item_found = 0 '\000', loc_deepest = {at = 0x0, length = 0}, loc_key = {at = 0x0, length = 0}, 
              ensure_unique = {at = 0x0, length = 0}}, m_optype = {code = 0 '\000'}, m_doc = {at = 0x0, length = 0}, m_userval = {at = 0x0, length = 0}, m_result = 0x0}, validator = {instance = {state = 5, 
              stack = {<std::stack<JSON_checker::Modes, std::deque<JSON_checker::Modes, std::allocator<JSON_checker::Modes> > >> = {c = {<std::_Deque_base<JSON_checker::Modes, std::allocator<JSON_checker::Modes> >> = {
                      _M_impl = {<std::allocator<JSON_checker::Modes>> = {<__gnu_cxx::new_allocator<JSON_checker::Modes>> = {<No data fields>}, <No data fields>}, _M_map = 0x7f5d6282de00, _M_map_size = 8, _M_start = {_M_cur = 0x7f5d63820200, 
                          _M_first = 0x7f5d63820200, _M_last = 0x7f5d63820400, _M_node = 0x7f5d6282de18}, _M_finish = {_M_cur = 0x7f5d63820201, _M_first = 0x7f5d63820200, _M_last = 0x7f5d63820400, 
                          _M_node = 0x7f5d6282de18}}}, <No data fields>}}, <No data fields>}}}, running = {_M_base = {static _S_alignment = 1, _M_i = true}, static is_always_lock_free = true}, scratch_buffer = {_M_elems = '\000' <repeats 2047 times>}, 
          shutdown_next_log = 0, new_conn_queue = {
            connections = {<folly::SynchronizedBase<folly::Synchronized<std::vector<FrontEndThread::ConnectionQueue::Entry, std::allocator<FrontEndThread::ConnectionQueue::Entry> >, std::mutex>, (folly::detail::MutexLevel)0>> = {<No data fields>}, 
              static nxCopyCtor = <error reading variable: No global symbol "folly::Synchronized<std::vector<FrontEndThread::ConnectionQueue::Entry, std::allocator<FrontEndThread::ConnectionQueue::Entry> >, std::mutex>::nxCopyCtor".>, 
              static nxMoveCtor = <error reading variable: No global symbol "folly::Synchronized<std::vector<FrontEndThread::ConnectionQueue::Entry, std::allocator<FrontEndThread::ConnectionQueue::Entry> >, std::mutex>::nxMoveCtor".>, 
              datum_ = {<std::_Vector_base<FrontEndThread::ConnectionQueue::Entry, std::allocator<FrontEndThread::ConnectionQueue::Entry> >> = {
                  _M_impl = {<std::allocator<FrontEndThread::ConnectionQueue::Entry>> = {<__gnu_cxx::new_allocator<FrontEndThread::ConnectionQueue::Entry>> = {<No data fields>}, <No data fields>}, _M_start = 0x0, _M_finish = 0x0, 
                    _M_end_of_storage = 0x0}}, <No data fields>}, mutex_ = {<std::__mutex_base> = {_M_mutex = {__data = {__lock = 0, __count = 0, __owner = 0, __nusers = 0, __kind = 0, __spins = 0, __list = {__prev = 0x0, __next = 0x0}}, 
                    __size = '\000' <repeats 39 times>, __align = 0}}, <No data fields>}}}}
#4  0x00007f5d66abc2d7 in run (this=0x7f5d62906880) at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/cb_pthreads.cc:58
No locals.
#5  platform_thread_wrap (arg=0x7f5d62906880) at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/cb_pthreads.cc:71
        context = {_M_t = {
            _M_t = {<std::_Tuple_impl<0, CouchbaseThread*, std::default_delete<CouchbaseThread> >> = {<std::_Tuple_impl<1, std::default_delete<CouchbaseThread> >> = {<std::_Head_base<1, std::default_delete<CouchbaseThread>, true>> = {<std::default_delete<CouchbaseThread>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::_Head_base<0, CouchbaseThread*, false>> = {_M_head_impl = 0x7f5d62906880}, <No data fields>}, <No data fields>}}}
#6  0x00007f5d642f9e65 in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#7  0x00007f5d6402288d in clone () from /lib64/libc.so.6
No symbol table info available.

Thread 15 (Thread 0x7f5d56ffd700 (LWP 43949)):
#0  0x00007f5d64022e63 in epoll_wait () from /lib64/libc.so.6
No symbol table info available.
#1  0x00007f5d65b943c5 in epoll_dispatch (base=0x7f5d6381e100, tv=<optimized out>) at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/libevent/libevent-prefix/src/libevent/epoll.c:465
        epollop = 0x7f5d638316c0
        events = 0x7f5d6385a380
        i = <optimized out>
        res = <optimized out>
        timeout = <optimized out>
        __func__ = "epoll_dispatch"
#2  0x00007f5d65b8b376 in event_base_loop (base=0x7f5d6381e100, flags=flags@entry=0) at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/libevent/libevent-prefix/src/libevent/event.c:1998
        evsel = 0x7f5d65d9ec20 <epollops>
        tv = {tv_sec = 140038868293376, tv_usec = 140039129000298}
        tv_p = <optimized out>
        res = <optimized out>
        done = 0
        retval = 0
        __func__ = "event_base_loop"
#3  0x000000000046adf9 in worker_libevent (arg=0x7f5d625cfff0) at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/daemon/thread.cc:195
        me = @0x7f5d625cfff0: {thread_id = 140038868293376, base = 0x7f5d6381e100, notify_event = {ev_evcallback = {evcb_active_next = {tqe_next = 0x0, tqe_prev = 0x0}, evcb_flags = 130, evcb_pri = 0 '\000', evcb_closure = 2 '\002', evcb_cb_union = {
                evcb_callback = 0x46d1d0 <FrontEndThread::libevent_callback(int, short, void*)>, evcb_selfcb = 0x46d1d0 <FrontEndThread::libevent_callback(int, short, void*)>, 
                evcb_evfinalize = 0x46d1d0 <FrontEndThread::libevent_callback(int, short, void*)>, evcb_cbfinalize = 0x46d1d0 <FrontEndThread::libevent_callback(int, short, void*)>}, evcb_arg = 0x7f5d625cfff0}, ev_timeout_pos = {
              ev_next_with_common_timeout = {tqe_next = 0xffffffff, tqe_prev = 0x0}, min_heap_idx = -1}, ev_fd = 56, ev_base = 0x7f5d6381e100, ev_ = {ev_io = {ev_io_next = {le_next = 0x0, le_prev = 0x7f5d6385c8a0}, ev_timeout = {tv_sec = 0, 
                  tv_usec = 0}}, ev_signal = {ev_signal_next = {le_next = 0x0, le_prev = 0x7f5d6385c8a0}, ev_ncalls = 0, ev_pncalls = 0x0}}, ev_events = 18, ev_res = 0, ev_timeout = {tv_sec = 0, tv_usec = 0}}, notify = {_M_elems = {56, 57}}, 
          mutex = {<std::__mutex_base> = {_M_mutex = {__data = {__lock = 0, __count = 0, __owner = 0, __nusers = 0, __kind = 0, __spins = 0, __list = {__prev = 0x0, __next = 0x0}}, __size = '\000' <repeats 39 times>, __align = 0}}, <No data fields>}, 
          pending_io = {mutex = {<std::__mutex_base> = {_M_mutex = {__data = {__lock = 0, __count = 0, __owner = 0, __nusers = 0, __kind = 0, __spins = 0, __list = {__prev = 0x0, __next = 0x0}}, __size = '\000' <repeats 39 times>, 
                  __align = 0}}, <No data fields>}, map = {
              _M_h = {<std::__detail::_Hashtable_base<Connection*, std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, std::__detail::_Select1st, std::equal_to<Connection*>, std::hash<Connection*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Hashtable_traits<false, false, true> >> = {<std::__detail::_Hash_code_base<Connection*, std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, std::__detail::_Select1st, std::hash<Connection*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, false>> = {<std::__detail::_Hashtable_ebo_helper<0, std::__detail::_Select1st, true>> = {<std::__detail::_Select1st> = {<No data fields>}, <No data fields>}, <std::__detail::_Hashtable_ebo_helper<1, std::hash<Connection*>, true>> = {<std::hash<Connection*>> = {<std::__hash_base<unsigned long, Connection*>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::__detail::_Hashtable_ebo_helper<2, std::__detail::_Mod_range_hashing, true>> = {<std::__detail::_Mod_range_hashing> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::__detail::_Hashtable_ebo_helper<0, std::equal_to<Connection*>, true>> = {<std::equal_to<Connection*>> = {<std::binary_function<Connection*, Connection*, bool>> = {<No data fields>}, <No data fields>}, <No data fields>}, <No data fields>}, <std::__detail::_Map_base<Connection*, std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, std::allocator<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > > >, std::__detail::_Select1st, std::equal_to<Connection*>, std::hash<Connection*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, false, true>, true>> = {<No data fields>}, <std::__detail::_Insert<Connection*, std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, std::allocator<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > > >, std::__detail::_Select1st, std::equal_to<Connection*>, std::hash<Connection*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, false, true>, false>> = {<std::__detail::_Insert_base<Connection*, std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, std::allocator<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > > >, std::__detail::_Select1st, std::equal_to<Connection*>, std::hash<Connection*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, false, true> >> = {<No data fields>}, <No data fields>}, <std::__detail::_Rehash_base<Connection*, std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, std::allocator<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > > >, std::__detail::_Select1st, std::equal_to<Connection*>, std::hash<Connection*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, false, true>, std::integral_constant<bool, true> >> = {<No data fields>}, <std::__detail::_Equality<Connection*, std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, std::allocator<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > > >, std::__detail::_Select1st, std::equal_to<Connection*>, std::hash<Connection*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, false, true>, true>> = {<No data fields>}, <std::__detail::_Hashtable_alloc<std::allocator<std::__detail::_Hash_node<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, false> > >> = {<std::__detail::_Hashtable_ebo_helper<0, std::allocator<std::__detail::_Hash_node<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, false> >, true>> = {<std::allocator<std::__detail::_Hash_node<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, false> >> = {<__gnu_cxx::new_allocator<std::__detail::_Hash_node<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, false> >> = {<No data fields>}, <No data fields>}, <No data fields>}, <No data fields>}, _M_buckets = 0x7f5d625d0108, _M_bucket_count = 1, 
                _M_before_begin = {_M_nxt = 0x0}, _M_element_count = 0, _M_rehash_policy = {static _S_growth_factor = 2, _M_max_load_factor = 1, _M_next_resize = 0}, _M_single_bucket = 0x0}}}, notification = {mutex = {<std::__mutex_base> = {_M_mutex = {
                  __data = {__lock = 0, __count = 0, __owner = 0, __nusers = 0, __kind = 0, __spins = 0, __list = {__prev = 0x0, __next = 0x0}}, __size = '\000' <repeats 39 times>, __align = 0}}, <No data fields>}, 
            connections = {<std::_Vector_base<Connection*, std::allocator<Connection*> >> = {_M_impl = {<std::allocator<Connection*>> = {<__gnu_cxx::new_allocator<Connection*>> = {<No data fields>}, <No data fields>}, _M_start = 0x0, _M_finish = 0x0, 
                  _M_end_of_storage = 0x0}}, <No data fields>}}, index = 6, subdoc_op = {m_path = 0x7f5d62830800, m_jsn = 0x11a5e30, m_match = {type = 0, status = 0, matchres = 0, sflags = 0, match_level = 0, position = 0, num_siblings = 0, 
              num_children = 0, immediate_parent_found = 0 '\000', get_last = 0 '\000', extra_options = Subdoc::Match::GET_MATCH_ONLY, unique_item_found = 0 '\000', loc_deepest = {at = 0x0, length = 0}, loc_key = {at = 0x0, length = 0}, 
              ensure_unique = {at = 0x0, length = 0}}, m_optype = {code = 0 '\000'}, m_doc = {at = 0x0, length = 0}, m_userval = {at = 0x0, length = 0}, m_result = 0x0}, validator = {instance = {state = 5, 
              stack = {<std::stack<JSON_checker::Modes, std::deque<JSON_checker::Modes, std::allocator<JSON_checker::Modes> > >> = {c = {<std::_Deque_base<JSON_checker::Modes, std::allocator<JSON_checker::Modes> >> = {
                      _M_impl = {<std::allocator<JSON_checker::Modes>> = {<__gnu_cxx::new_allocator<JSON_checker::Modes>> = {<No data fields>}, <No data fields>}, _M_map = 0x7f5d6282dd40, _M_map_size = 8, _M_start = {_M_cur = 0x7f5d63820400, 
                          _M_first = 0x7f5d63820400, _M_last = 0x7f5d63820600, _M_node = 0x7f5d6282dd58}, _M_finish = {_M_cur = 0x7f5d63820401, _M_first = 0x7f5d63820400, _M_last = 0x7f5d63820600, 
                          _M_node = 0x7f5d6282dd58}}}, <No data fields>}}, <No data fields>}}}, running = {_M_base = {static _S_alignment = 1, _M_i = true}, static is_always_lock_free = true}, scratch_buffer = {_M_elems = '\000' <repeats 2047 times>}, 
          shutdown_next_log = 0, new_conn_queue = {
            connections = {<folly::SynchronizedBase<folly::Synchronized<std::vector<FrontEndThread::ConnectionQueue::Entry, std::allocator<FrontEndThread::ConnectionQueue::Entry> >, std::mutex>, (folly::detail::MutexLevel)0>> = {<No data fields>}, 
              static nxCopyCtor = <error reading variable: No global symbol "folly::Synchronized<std::vector<FrontEndThread::ConnectionQueue::Entry, std::allocator<FrontEndThread::ConnectionQueue::Entry> >, std::mutex>::nxCopyCtor".>, 
              static nxMoveCtor = <error reading variable: No global symbol "folly::Synchronized<std::vector<FrontEndThread::ConnectionQueue::Entry, std::allocator<FrontEndThread::ConnectionQueue::Entry> >, std::mutex>::nxMoveCtor".>, 
              datum_ = {<std::_Vector_base<FrontEndThread::ConnectionQueue::Entry, std::allocator<FrontEndThread::ConnectionQueue::Entry> >> = {
                  _M_impl = {<std::allocator<FrontEndThread::ConnectionQueue::Entry>> = {<__gnu_cxx::new_allocator<FrontEndThread::ConnectionQueue::Entry>> = {<No data fields>}, <No data fields>}, _M_start = 0x0, _M_finish = 0x0, 
                    _M_end_of_storage = 0x0}}, <No data fields>}, mutex_ = {<std::__mutex_base> = {_M_mutex = {__data = {__lock = 0, __count = 0, __owner = 0, __nusers = 0, __kind = 0, __spins = 0, __list = {__prev = 0x0, __next = 0x0}}, 
                    __size = '\000' <repeats 39 times>, __align = 0}}, <No data fields>}}}}
#4  0x00007f5d66abc2d7 in run (this=0x7f5d629068b0) at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/cb_pthreads.cc:58
No locals.
#5  platform_thread_wrap (arg=0x7f5d629068b0) at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/cb_pthreads.cc:71
        context = {_M_t = {
            _M_t = {<std::_Tuple_impl<0, CouchbaseThread*, std::default_delete<CouchbaseThread> >> = {<std::_Tuple_impl<1, std::default_delete<CouchbaseThread> >> = {<std::_Head_base<1, std::default_delete<CouchbaseThread>, true>> = {<std::default_delete<CouchbaseThread>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::_Head_base<0, CouchbaseThread*, false>> = {_M_head_impl = 0x7f5d629068b0}, <No data fields>}, <No data fields>}}}
#6  0x00007f5d642f9e65 in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#7  0x00007f5d6402288d in clone () from /lib64/libc.so.6
No symbol table info available.

Thread 14 (Thread 0x7f5d567fc700 (LWP 43950)):
#0  0x00007f5d64022e63 in epoll_wait () from /lib64/libc.so.6
No symbol table info available.
#1  0x00007f5d65b943c5 in epoll_dispatch (base=0x7f5d6381e400, tv=<optimized out>) at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/libevent/libevent-prefix/src/libevent/epoll.c:465
        epollop = 0x7f5d638316e0
        events = 0x7f5d6385a500
        i = <optimized out>
        res = <optimized out>
        timeout = <optimized out>
        __func__ = "epoll_dispatch"
#2  0x00007f5d65b8b376 in event_base_loop (base=0x7f5d6381e400, flags=flags@entry=0) at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/libevent/libevent-prefix/src/libevent/event.c:1998
        evsel = 0x7f5d65d9ec20 <epollops>
        tv = {tv_sec = 140038859900672, tv_usec = 140039129000298}
        tv_p = <optimized out>
        res = <optimized out>
        done = 0
        retval = 0
        __func__ = "event_base_loop"
#3  0x000000000046adf9 in worker_libevent (arg=0x7f5d625d0a98) at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/daemon/thread.cc:195
        me = @0x7f5d625d0a98: {thread_id = 140038859900672, base = 0x7f5d6381e400, notify_event = {ev_evcallback = {evcb_active_next = {tqe_next = 0x0, tqe_prev = 0x0}, evcb_flags = 130, evcb_pri = 0 '\000', evcb_closure = 2 '\002', evcb_cb_union = {
                evcb_callback = 0x46d1d0 <FrontEndThread::libevent_callback(int, short, void*)>, evcb_selfcb = 0x46d1d0 <FrontEndThread::libevent_callback(int, short, void*)>, 
                evcb_evfinalize = 0x46d1d0 <FrontEndThread::libevent_callback(int, short, void*)>, evcb_cbfinalize = 0x46d1d0 <FrontEndThread::libevent_callback(int, short, void*)>}, evcb_arg = 0x7f5d625d0a98}, ev_timeout_pos = {
              ev_next_with_common_timeout = {tqe_next = 0xffffffff, tqe_prev = 0x0}, min_heap_idx = -1}, ev_fd = 62, ev_base = 0x7f5d6381e400, ev_ = {ev_io = {ev_io_next = {le_next = 0x0, le_prev = 0x7f5d6385c850}, ev_timeout = {tv_sec = 0, 
                  tv_usec = 0}}, ev_signal = {ev_signal_next = {le_next = 0x0, le_prev = 0x7f5d6385c850}, ev_ncalls = 0, ev_pncalls = 0x0}}, ev_events = 18, ev_res = 0, ev_timeout = {tv_sec = 0, tv_usec = 0}}, notify = {_M_elems = {62, 63}}, 
          mutex = {<std::__mutex_base> = {_M_mutex = {__data = {__lock = 0, __count = 0, __owner = 0, __nusers = 0, __kind = 0, __spins = 0, __list = {__prev = 0x0, __next = 0x0}}, __size = '\000' <repeats 39 times>, __align = 0}}, <No data fields>}, 
          pending_io = {mutex = {<std::__mutex_base> = {_M_mutex = {__data = {__lock = 0, __count = 0, __owner = 0, __nusers = 0, __kind = 0, __spins = 0, __list = {__prev = 0x0, __next = 0x0}}, __size = '\000' <repeats 39 times>, 
                  __align = 0}}, <No data fields>}, map = {
              _M_h = {<std::__detail::_Hashtable_base<Connection*, std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, std::__detail::_Select1st, std::equal_to<Connection*>, std::hash<Connection*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Hashtable_traits<false, false, true> >> = {<std::__detail::_Hash_code_base<Connection*, std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, std::__detail::_Select1st, std::hash<Connection*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, false>> = {<std::__detail::_Hashtable_ebo_helper<0, std::__detail::_Select1st, true>> = {<std::__detail::_Select1st> = {<No data fields>}, <No data fields>}, <std::__detail::_Hashtable_ebo_helper<1, std::hash<Connection*>, true>> = {<std::hash<Connection*>> = {<std::__hash_base<unsigned long, Connection*>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::__detail::_Hashtable_ebo_helper<2, std::__detail::_Mod_range_hashing, true>> = {<std::__detail::_Mod_range_hashing> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::__detail::_Hashtable_ebo_helper<0, std::equal_to<Connection*>, true>> = {<std::equal_to<Connection*>> = {<std::binary_function<Connection*, Connection*, bool>> = {<No data fields>}, <No data fields>}, <No data fields>}, <No data fields>}, <std::__detail::_Map_base<Connection*, std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, std::allocator<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > > >, std::__detail::_Select1st, std::equal_to<Connection*>, std::hash<Connection*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, false, true>, true>> = {<No data fields>}, <std::__detail::_Insert<Connection*, std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, std::allocator<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > > >, std::__detail::_Select1st, std::equal_to<Connection*>, std::hash<Connection*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, false, true>, false>> = {<std::__detail::_Insert_base<Connection*, std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, std::allocator<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > > >, std::__detail::_Select1st, std::equal_to<Connection*>, std::hash<Connection*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, false, true> >> = {<No data fields>}, <No data fields>}, <std::__detail::_Rehash_base<Connection*, std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, std::allocator<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > > >, std::__detail::_Select1st, std::equal_to<Connection*>, std::hash<Connection*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, false, true>, std::integral_constant<bool, true> >> = {<No data fields>}, <std::__detail::_Equality<Connection*, std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, std::allocator<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > > >, std::__detail::_Select1st, std::equal_to<Connection*>, std::hash<Connection*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, false, true>, true>> = {<No data fields>}, <std::__detail::_Hashtable_alloc<std::allocator<std::__detail::_Hash_node<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, false> > >> = {<std::__detail::_Hashtable_ebo_helper<0, std::allocator<std::__detail::_Hash_node<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, false> >, true>> = {<std::allocator<std::__detail::_Hash_node<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, false> >> = {<__gnu_cxx::new_allocator<std::__detail::_Hash_node<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, false> >> = {<No data fields>}, <No data fields>}, <No data fields>}, <No data fields>}, _M_buckets = 0x7f5d625d0bb0, _M_bucket_count = 1, 
                _M_before_begin = {_M_nxt = 0x0}, _M_element_count = 0, _M_rehash_policy = {static _S_growth_factor = 2, _M_max_load_factor = 1, _M_next_resize = 0}, _M_single_bucket = 0x0}}}, notification = {mutex = {<std::__mutex_base> = {_M_mutex = {
                  __data = {__lock = 0, __count = 0, __owner = 0, __nusers = 0, __kind = 0, __spins = 0, __list = {__prev = 0x0, __next = 0x0}}, __size = '\000' <repeats 39 times>, __align = 0}}, <No data fields>}, 
            connections = {<std::_Vector_base<Connection*, std::allocator<Connection*> >> = {_M_impl = {<std::allocator<Connection*>> = {<__gnu_cxx::new_allocator<Connection*>> = {<No data fields>}, <No data fields>}, _M_start = 0x0, _M_finish = 0x0, 
                  _M_end_of_storage = 0x0}}, <No data fields>}}, index = 7, subdoc_op = {m_path = 0x7f5d62830d00, m_jsn = 0x11a6610, m_match = {type = 0, status = 0, matchres = 0, sflags = 0, match_level = 0, position = 0, num_siblings = 0, 
              num_children = 0, immediate_parent_found = 0 '\000', get_last = 0 '\000', extra_options = Subdoc::Match::GET_MATCH_ONLY, unique_item_found = 0 '\000', loc_deepest = {at = 0x0, length = 0}, loc_key = {at = 0x0, length = 0}, 
              ensure_unique = {at = 0x0, length = 0}}, m_optype = {code = 0 '\000'}, m_doc = {at = 0x0, length = 0}, m_userval = {at = 0x0, length = 0}, m_result = 0x0}, validator = {instance = {state = 5, 
              stack = {<std::stack<JSON_checker::Modes, std::deque<JSON_checker::Modes, std::allocator<JSON_checker::Modes> > >> = {c = {<std::_Deque_base<JSON_checker::Modes, std::allocator<JSON_checker::Modes> >> = {
                      _M_impl = {<std::allocator<JSON_checker::Modes>> = {<__gnu_cxx::new_allocator<JSON_checker::Modes>> = {<No data fields>}, <No data fields>}, _M_map = 0x7f5d6282dd80, _M_map_size = 8, _M_start = {_M_cur = 0x7f5d63820600, 
                          _M_first = 0x7f5d63820600, _M_last = 0x7f5d63820800, _M_node = 0x7f5d6282dd98}, _M_finish = {_M_cur = 0x7f5d63820601, _M_first = 0x7f5d63820600, _M_last = 0x7f5d63820800, 
                          _M_node = 0x7f5d6282dd98}}}, <No data fields>}}, <No data fields>}}}, running = {_M_base = {static _S_alignment = 1, _M_i = true}, static is_always_lock_free = true}, scratch_buffer = {_M_elems = '\000' <repeats 2047 times>}, 
          shutdown_next_log = 0, new_conn_queue = {
            connections = {<folly::SynchronizedBase<folly::Synchronized<std::vector<FrontEndThread::ConnectionQueue::Entry, std::allocator<FrontEndThread::ConnectionQueue::Entry> >, std::mutex>, (folly::detail::MutexLevel)0>> = {<No data fields>}, 
              static nxCopyCtor = <error reading variable: No global symbol "folly::Synchronized<std::vector<FrontEndThread::ConnectionQueue::Entry, std::allocator<FrontEndThread::ConnectionQueue::Entry> >, std::mutex>::nxCopyCtor".>, 
              static nxMoveCtor = <error reading variable: No global symbol "folly::Synchronized<std::vector<FrontEndThread::ConnectionQueue::Entry, std::allocator<FrontEndThread::ConnectionQueue::Entry> >, std::mutex>::nxMoveCtor".>, 
              datum_ = {<std::_Vector_base<FrontEndThread::ConnectionQueue::Entry, std::allocator<FrontEndThread::ConnectionQueue::Entry> >> = {
                  _M_impl = {<std::allocator<FrontEndThread::ConnectionQueue::Entry>> = {<__gnu_cxx::new_allocator<FrontEndThread::ConnectionQueue::Entry>> = {<No data fields>}, <No data fields>}, _M_start = 0x0, _M_finish = 0x0, 
                    _M_end_of_storage = 0x0}}, <No data fields>}, mutex_ = {<std::__mutex_base> = {_M_mutex = {__data = {__lock = 0, __count = 0, __owner = 0, __nusers = 0, __kind = 0, __spins = 0, __list = {__prev = 0x0, __next = 0x0}}, 
                    __size = '\000' <repeats 39 times>, __align = 0}}, <No data fields>}}}}
#4  0x00007f5d66abc2d7 in run (this=0x7f5d62906a60) at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/cb_pthreads.cc:58
No locals.
#5  platform_thread_wrap (arg=0x7f5d62906a60) at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/cb_pthreads.cc:71
        context = {_M_t = {
            _M_t = {<std::_Tuple_impl<0, CouchbaseThread*, std::default_delete<CouchbaseThread> >> = {<std::_Tuple_impl<1, std::default_delete<CouchbaseThread> >> = {<std::_Head_base<1, std::default_delete<CouchbaseThread>, true>> = {<std::default_delete<CouchbaseThread>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::_Head_base<0, CouchbaseThread*, false>> = {_M_head_impl = 0x7f5d62906a60}, <No data fields>}, <No data fields>}}}
#6  0x00007f5d642f9e65 in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#7  0x00007f5d6402288d in clone () from /lib64/libc.so.6
No symbol table info available.

Thread 13 (Thread 0x7f5d55ffb700 (LWP 43951)):
#0  0x00007f5d64022e63 in epoll_wait () from /lib64/libc.so.6
No symbol table info available.
#1  0x00007f5d65b943c5 in epoll_dispatch (base=0x7f5d6381e700, tv=<optimized out>) at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/libevent/libevent-prefix/src/libevent/epoll.c:465
        epollop = 0x7f5d63831680
        events = 0x7f5d6385a680
        i = <optimized out>
        res = <optimized out>
        timeout = <optimized out>
        __func__ = "epoll_dispatch"
#2  0x00007f5d65b8b376 in event_base_loop (base=0x7f5d6381e700, flags=flags@entry=0) at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/libevent/libevent-prefix/src/libevent/event.c:1998
        evsel = 0x7f5d65d9ec20 <epollops>
        tv = {tv_sec = 140038851507968, tv_usec = 140039129000298}
        tv_p = <optimized out>
        res = <optimized out>
        done = 0
        retval = 0
        __func__ = "event_base_loop"
#3  0x000000000046adf9 in worker_libevent (arg=0x7f5d625d1540) at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/daemon/thread.cc:195
        me = @0x7f5d625d1540: {thread_id = 140038851507968, base = 0x7f5d6381e700, notify_event = {ev_evcallback = {evcb_active_next = {tqe_next = 0x0, tqe_prev = 0x0}, evcb_flags = 130, evcb_pri = 0 '\000', evcb_closure = 2 '\002', evcb_cb_union = {
                evcb_callback = 0x46d1d0 <FrontEndThread::libevent_callback(int, short, void*)>, evcb_selfcb = 0x46d1d0 <FrontEndThread::libevent_callback(int, short, void*)>, 
                evcb_evfinalize = 0x46d1d0 <FrontEndThread::libevent_callback(int, short, void*)>, evcb_cbfinalize = 0x46d1d0 <FrontEndThread::libevent_callback(int, short, void*)>}, evcb_arg = 0x7f5d625d1540}, ev_timeout_pos = {
              ev_next_with_common_timeout = {tqe_next = 0xffffffff, tqe_prev = 0x0}, min_heap_idx = -1}, ev_fd = 68, ev_base = 0x7f5d6381e700, ev_ = {ev_io = {ev_io_next = {le_next = 0x0, le_prev = 0x7f5d62879930}, ev_timeout = {tv_sec = 0, 
                  tv_usec = 0}}, ev_signal = {ev_signal_next = {le_next = 0x0, le_prev = 0x7f5d62879930}, ev_ncalls = 0, ev_pncalls = 0x0}}, ev_events = 18, ev_res = 0, ev_timeout = {tv_sec = 0, tv_usec = 0}}, notify = {_M_elems = {68, 69}}, 
          mutex = {<std::__mutex_base> = {_M_mutex = {__data = {__lock = 0, __count = 0, __owner = 0, __nusers = 0, __kind = 0, __spins = 0, __list = {__prev = 0x0, __next = 0x0}}, __size = '\000' <repeats 39 times>, __align = 0}}, <No data fields>}, 
          pending_io = {mutex = {<std::__mutex_base> = {_M_mutex = {__data = {__lock = 0, __count = 0, __owner = 0, __nusers = 0, __kind = 0, __spins = 0, __list = {__prev = 0x0, __next = 0x0}}, __size = '\000' <repeats 39 times>, 
                  __align = 0}}, <No data fields>}, map = {
              _M_h = {<std::__detail::_Hashtable_base<Connection*, std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, std::__detail::_Select1st, std::equal_to<Connection*>, std::hash<Connection*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Hashtable_traits<false, false, true> >> = {<std::__detail::_Hash_code_base<Connection*, std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, std::__detail::_Select1st, std::hash<Connection*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, false>> = {<std::__detail::_Hashtable_ebo_helper<0, std::__detail::_Select1st, true>> = {<std::__detail::_Select1st> = {<No data fields>}, <No data fields>}, <std::__detail::_Hashtable_ebo_helper<1, std::hash<Connection*>, true>> = {<std::hash<Connection*>> = {<std::__hash_base<unsigned long, Connection*>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::__detail::_Hashtable_ebo_helper<2, std::__detail::_Mod_range_hashing, true>> = {<std::__detail::_Mod_range_hashing> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::__detail::_Hashtable_ebo_helper<0, std::equal_to<Connection*>, true>> = {<std::equal_to<Connection*>> = {<std::binary_function<Connection*, Connection*, bool>> = {<No data fields>}, <No data fields>}, <No data fields>}, <No data fields>}, <std::__detail::_Map_base<Connection*, std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, std::allocator<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > > >, std::__detail::_Select1st, std::equal_to<Connection*>, std::hash<Connection*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, false, true>, true>> = {<No data fields>}, <std::__detail::_Insert<Connection*, std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, std::allocator<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > > >, std::__detail::_Select1st, std::equal_to<Connection*>, std::hash<Connection*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, false, true>, false>> = {<std::__detail::_Insert_base<Connection*, std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, std::allocator<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > > >, std::__detail::_Select1st, std::equal_to<Connection*>, std::hash<Connection*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, false, true> >> = {<No data fields>}, <No data fields>}, <std::__detail::_Rehash_base<Connection*, std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, std::allocator<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > > >, std::__detail::_Select1st, std::equal_to<Connection*>, std::hash<Connection*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, false, true>, std::integral_constant<bool, true> >> = {<No data fields>}, <std::__detail::_Equality<Connection*, std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, std::allocator<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > > >, std::__detail::_Select1st, std::equal_to<Connection*>, std::hash<Connection*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, false, true>, true>> = {<No data fields>}, <std::__detail::_Hashtable_alloc<std::allocator<std::__detail::_Hash_node<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, false> > >> = {<std::__detail::_Hashtable_ebo_helper<0, std::allocator<std::__detail::_Hash_node<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, false> >, true>> = {<std::allocator<std::__detail::_Hash_node<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, false> >> = {<__gnu_cxx::new_allocator<std::__detail::_Hash_node<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, false> >> = {<No data fields>}, <No data fields>}, <No data fields>}, <No data fields>}, _M_buckets = 0x7f5d625d1658, _M_bucket_count = 1, 
                _M_before_begin = {_M_nxt = 0x0}, _M_element_count = 0, _M_rehash_policy = {static _S_growth_factor = 2, _M_max_load_factor = 1, _M_next_resize = 0}, _M_single_bucket = 0x0}}}, notification = {mutex = {<std::__mutex_base> = {_M_mutex = {
                  __data = {__lock = 0, __count = 0, __owner = 0, __nusers = 0, __kind = 0, __spins = 0, __list = {__prev = 0x0, __next = 0x0}}, __size = '\000' <repeats 39 times>, __align = 0}}, <No data fields>}, 
            connections = {<std::_Vector_base<Connection*, std::allocator<Connection*> >> = {_M_impl = {<std::allocator<Connection*>> = {<__gnu_cxx::new_allocator<Connection*>> = {<No data fields>}, <No data fields>}, _M_start = 0x0, _M_finish = 0x0, 
                  _M_end_of_storage = 0x0}}, <No data fields>}}, index = 8, subdoc_op = {m_path = 0x7f5d62831200, m_jsn = 0x11a6df0, m_match = {type = 0, status = 0, matchres = 0, sflags = 0, match_level = 0, position = 0, num_siblings = 0, 
              num_children = 0, immediate_parent_found = 0 '\000', get_last = 0 '\000', extra_options = Subdoc::Match::GET_MATCH_ONLY, unique_item_found = 0 '\000', loc_deepest = {at = 0x0, length = 0}, loc_key = {at = 0x0, length = 0}, 
              ensure_unique = {at = 0x0, length = 0}}, m_optype = {code = 0 '\000'}, m_doc = {at = 0x0, length = 0}, m_userval = {at = 0x0, length = 0}, m_result = 0x0}, validator = {instance = {state = 5, 
              stack = {<std::stack<JSON_checker::Modes, std::deque<JSON_checker::Modes, std::allocator<JSON_checker::Modes> > >> = {c = {<std::_Deque_base<JSON_checker::Modes, std::allocator<JSON_checker::Modes> >> = {
                      _M_impl = {<std::allocator<JSON_checker::Modes>> = {<__gnu_cxx::new_allocator<JSON_checker::Modes>> = {<No data fields>}, <No data fields>}, _M_map = 0x7f5d6282db40, _M_map_size = 8, _M_start = {_M_cur = 0x7f5d63820800, 
                          _M_first = 0x7f5d63820800, _M_last = 0x7f5d63820a00, _M_node = 0x7f5d6282db58}, _M_finish = {_M_cur = 0x7f5d63820801, _M_first = 0x7f5d63820800, _M_last = 0x7f5d63820a00, 
                          _M_node = 0x7f5d6282db58}}}, <No data fields>}}, <No data fields>}}}, running = {_M_base = {static _S_alignment = 1, _M_i = true}, static is_always_lock_free = true}, scratch_buffer = {_M_elems = '\000' <repeats 2047 times>}, 
          shutdown_next_log = 0, new_conn_queue = {
            connections = {<folly::SynchronizedBase<folly::Synchronized<std::vector<FrontEndThread::ConnectionQueue::Entry, std::allocator<FrontEndThread::ConnectionQueue::Entry> >, std::mutex>, (folly::detail::MutexLevel)0>> = {<No data fields>}, 
              static nxCopyCtor = <error reading variable: No global symbol "folly::Synchronized<std::vector<FrontEndThread::ConnectionQueue::Entry, std::allocator<FrontEndThread::ConnectionQueue::Entry> >, std::mutex>::nxCopyCtor".>, 
              static nxMoveCtor = <error reading variable: No global symbol "folly::Synchronized<std::vector<FrontEndThread::ConnectionQueue::Entry, std::allocator<FrontEndThread::ConnectionQueue::Entry> >, std::mutex>::nxMoveCtor".>, 
              datum_ = {<std::_Vector_base<FrontEndThread::ConnectionQueue::Entry, std::allocator<FrontEndThread::ConnectionQueue::Entry> >> = {
                  _M_impl = {<std::allocator<FrontEndThread::ConnectionQueue::Entry>> = {<__gnu_cxx::new_allocator<FrontEndThread::ConnectionQueue::Entry>> = {<No data fields>}, <No data fields>}, _M_start = 0x0, _M_finish = 0x0, 
                    _M_end_of_storage = 0x0}}, <No data fields>}, mutex_ = {<std::__mutex_base> = {_M_mutex = {__data = {__lock = 0, __count = 0, __owner = 0, __nusers = 0, __kind = 0, __spins = 0, __list = {__prev = 0x0, __next = 0x0}}, 
                    __size = '\000' <repeats 39 times>, __align = 0}}, <No data fields>}}}}
#4  0x00007f5d66abc2d7 in run (this=0x7f5d62906b50) at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/cb_pthreads.cc:58
No locals.
#5  platform_thread_wrap (arg=0x7f5d62906b50) at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/cb_pthreads.cc:71
        context = {_M_t = {
            _M_t = {<std::_Tuple_impl<0, CouchbaseThread*, std::default_delete<CouchbaseThread> >> = {<std::_Tuple_impl<1, std::default_delete<CouchbaseThread> >> = {<std::_Head_base<1, std::default_delete<CouchbaseThread>, true>> = {<std::default_delete<CouchbaseThread>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::_Head_base<0, CouchbaseThread*, false>> = {_M_head_impl = 0x7f5d62906b50}, <No data fields>}, <No data fields>}}}
#6  0x00007f5d642f9e65 in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#7  0x00007f5d6402288d in clone () from /lib64/libc.so.6
No symbol table info available.

Thread 12 (Thread 0x7f5d557fa700 (LWP 43952)):
#0  0x00007f5d64022e63 in epoll_wait () from /lib64/libc.so.6
No symbol table info available.
#1  0x00007f5d65b943c5 in epoll_dispatch (base=0x7f5d6381ea00, tv=<optimized out>) at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/libevent/libevent-prefix/src/libevent/epoll.c:465
        epollop = 0x7f5d638316a0
        events = 0x7f5d6385a800
        i = <optimized out>
        res = <optimized out>
        timeout = <optimized out>
        __func__ = "epoll_dispatch"
#2  0x00007f5d65b8b376 in event_base_loop (base=0x7f5d6381ea00, flags=flags@entry=0) at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/libevent/libevent-prefix/src/libevent/event.c:1998
        evsel = 0x7f5d65d9ec20 <epollops>
        tv = {tv_sec = 140038876590768, tv_usec = 140039129000298}
        tv_p = <optimized out>
        res = <optimized out>
        done = 0
        retval = 0
        __func__ = "event_base_loop"
#3  0x000000000046adf9 in worker_libevent (arg=0x7f5d625d1fe8) at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/daemon/thread.cc:195
        me = @0x7f5d625d1fe8: {thread_id = 140038843115264, base = 0x7f5d6381ea00, notify_event = {ev_evcallback = {evcb_active_next = {tqe_next = 0x0, tqe_prev = 0x0}, evcb_flags = 130, evcb_pri = 0 '\000', evcb_closure = 2 '\002', evcb_cb_union = {
                evcb_callback = 0x46d1d0 <FrontEndThread::libevent_callback(int, short, void*)>, evcb_selfcb = 0x46d1d0 <FrontEndThread::libevent_callback(int, short, void*)>, 
                evcb_evfinalize = 0x46d1d0 <FrontEndThread::libevent_callback(int, short, void*)>, evcb_cbfinalize = 0x46d1d0 <FrontEndThread::libevent_callback(int, short, void*)>}, evcb_arg = 0x7f5d625d1fe8}, ev_timeout_pos = {
              ev_next_with_common_timeout = {tqe_next = 0xffffffff, tqe_prev = 0x0}, min_heap_idx = -1}, ev_fd = 74, ev_base = 0x7f5d6381ea00, ev_ = {ev_io = {ev_io_next = {le_next = 0x0, le_prev = 0x7f5d6385cc50}, ev_timeout = {tv_sec = 0, 
                  tv_usec = 0}}, ev_signal = {ev_signal_next = {le_next = 0x0, le_prev = 0x7f5d6385cc50}, ev_ncalls = 0, ev_pncalls = 0x0}}, ev_events = 18, ev_res = 0, ev_timeout = {tv_sec = 0, tv_usec = 0}}, notify = {_M_elems = {74, 75}}, 
          mutex = {<std::__mutex_base> = {_M_mutex = {__data = {__lock = 0, __count = 0, __owner = 0, __nusers = 0, __kind = 0, __spins = 0, __list = {__prev = 0x0, __next = 0x0}}, __size = '\000' <repeats 39 times>, __align = 0}}, <No data fields>}, 
          pending_io = {mutex = {<std::__mutex_base> = {_M_mutex = {__data = {__lock = 0, __count = 0, __owner = 0, __nusers = 0, __kind = 0, __spins = 0, __list = {__prev = 0x0, __next = 0x0}}, __size = '\000' <repeats 39 times>, 
                  __align = 0}}, <No data fields>}, map = {
              _M_h = {<std::__detail::_Hashtable_base<Connection*, std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, std::__detail::_Select1st, std::equal_to<Connection*>, std::hash<Connection*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Hashtable_traits<false, false, true> >> = {<std::__detail::_Hash_code_base<Connection*, std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, std::__detail::_Select1st, std::hash<Connection*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, false>> = {<std::__detail::_Hashtable_ebo_helper<0, std::__detail::_Select1st, true>> = {<std::__detail::_Select1st> = {<No data fields>}, <No data fields>}, <std::__detail::_Hashtable_ebo_helper<1, std::hash<Connection*>, true>> = {<std::hash<Connection*>> = {<std::__hash_base<unsigned long, Connection*>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::__detail::_Hashtable_ebo_helper<2, std::__detail::_Mod_range_hashing, true>> = {<std::__detail::_Mod_range_hashing> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::__detail::_Hashtable_ebo_helper<0, std::equal_to<Connection*>, true>> = {<std::equal_to<Connection*>> = {<std::binary_function<Connection*, Connection*, bool>> = {<No data fields>}, <No data fields>}, <No data fields>}, <No data fields>}, <std::__detail::_Map_base<Connection*, std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, std::allocator<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > > >, std::__detail::_Select1st, std::equal_to<Connection*>, std::hash<Connection*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, false, true>, true>> = {<No data fields>}, <std::__detail::_Insert<Connection*, std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, std::allocator<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > > >, std::__detail::_Select1st, std::equal_to<Connection*>, std::hash<Connection*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, false, true>, false>> = {<std::__detail::_Insert_base<Connection*, std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, std::allocator<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > > >, std::__detail::_Select1st, std::equal_to<Connection*>, std::hash<Connection*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, false, true> >> = {<No data fields>}, <No data fields>}, <std::__detail::_Rehash_base<Connection*, std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, std::allocator<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > > >, std::__detail::_Select1st, std::equal_to<Connection*>, std::hash<Connection*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, false, true>, std::integral_constant<bool, true> >> = {<No data fields>}, <std::__detail::_Equality<Connection*, std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, std::allocator<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > > >, std::__detail::_Select1st, std::equal_to<Connection*>, std::hash<Connection*>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, false, true>, true>> = {<No data fields>}, <std::__detail::_Hashtable_alloc<std::allocator<std::__detail::_Hash_node<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, false> > >> = {<std::__detail::_Hashtable_ebo_helper<0, std::allocator<std::__detail::_Hash_node<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, false> >, true>> = {<std::allocator<std::__detail::_Hash_node<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, false> >> = {<__gnu_cxx::new_allocator<std::__detail::_Hash_node<std::pair<Connection* const, std::vector<std::pair<Cookie*, ENGINE_ERROR_CODE>, std::allocator<std::pair<Cookie*, ENGINE_ERROR_CODE> > > >, false> >> = {<No data fields>}, <No data fields>}, <No data fields>}, <No data fields>}, _M_buckets = 0x7f5d625d2100, _M_bucket_count = 1, 
                _M_before_begin = {_M_nxt = 0x0}, _M_element_count = 0, _M_rehash_policy = {static _S_growth_factor = 2, _M_max_load_factor = 1, _M_next_resize = 0}, _M_single_bucket = 0x0}}}, notification = {mutex = {<std::__mutex_base> = {_M_mutex = {
                  __data = {__lock = 0, __count = 0, __owner = 0, __nusers = 0, __kind = 0, __spins = 0, __list = {__prev = 0x0, __next = 0x0}}, __size = '\000' <repeats 39 times>, __align = 0}}, <No data fields>}, 
            connections = {<std::_Vector_base<Connection*, std::allocator<Connection*> >> = {_M_impl = {<std::allocator<Connection*>> = {<__gnu_cxx::new_allocator<Connection*>> = {<No data fields>}, <No data fields>}, _M_start = 0x0, _M_finish = 0x0, 
                  _M_end_of_storage = 0x0}}, <No data fields>}}, index = 9, subdoc_op = {m_path = 0x7f5d62831700, m_jsn = 0x11a75d0, m_match = {type = 0, status = 0, matchres = 0, sflags = 0, match_level = 0, position = 0, num_siblings = 0, 
              num_children = 0, immediate_parent_found = 0 '\000', get_last = 0 '\000', extra_options = Subdoc::Match::GET_MATCH_ONLY, unique_item_found = 0 '\000', loc_deepest = {at = 0x0, length = 0}, loc_key = {at = 0x0, length = 0}, 
              ensure_unique = {at = 0x0, length = 0}}, m_optype = {code = 0 '\000'}, m_doc = {at = 0x0, length = 0}, m_userval = {at = 0x0, length = 0}, m_result = 0x0}, validator = {instance = {state = 5, 
              stack = {<std::stack<JSON_checker::Modes, std::deque<JSON_checker::Modes, std::allocator<JSON_checker::Modes> > >> = {c = {<std::_Deque_base<JSON_checker::Modes, std::allocator<JSON_checker::Modes> >> = {
                      _M_impl = {<std::allocator<JSON_checker::Modes>> = {<__gnu_cxx::new_allocator<JSON_checker::Modes>> = {<No data fields>}, <No data fields>}, _M_map = 0x7f5d6282db00, _M_map_size = 8, _M_start = {_M_cur = 0x7f5d63820a00, 
                          _M_first = 0x7f5d63820a00, _M_last = 0x7f5d63820c00, _M_node = 0x7f5d6282db18}, _M_finish = {_M_cur = 0x7f5d63820a01, _M_first = 0x7f5d63820a00, _M_last = 0x7f5d63820c00, 
                          _M_node = 0x7f5d6282db18}}}, <No data fields>}}, <No data fields>}}}, running = {_M_base = {static _S_alignment = 1, _M_i = true}, static is_always_lock_free = true}, scratch_buffer = {_M_elems = '\000' <repeats 2047 times>}, 
          shutdown_next_log = 0, new_conn_queue = {
            connections = {<folly::SynchronizedBase<folly::Synchronized<std::vector<FrontEndThread::ConnectionQueue::Entry, std::allocator<FrontEndThread::ConnectionQueue::Entry> >, std::mutex>, (folly::detail::MutexLevel)0>> = {<No data fields>}, 
              static nxCopyCtor = <error reading variable: No global symbol "folly::Synchronized<std::vector<FrontEndThread::ConnectionQueue::Entry, std::allocator<FrontEndThread::ConnectionQueue::Entry> >, std::mutex>::nxCopyCtor".>, 
              static nxMoveCtor = <error reading variable: No global symbol "folly::Synchronized<std::vector<FrontEndThread::ConnectionQueue::Entry, std::allocator<FrontEndThread::ConnectionQueue::Entry> >, std::mutex>::nxMoveCtor".>, 
              datum_ = {<std::_Vector_base<FrontEndThread::ConnectionQueue::Entry, std::allocator<FrontEndThread::ConnectionQueue::Entry> >> = {
                  _M_impl = {<std::allocator<FrontEndThread::ConnectionQueue::Entry>> = {<__gnu_cxx::new_allocator<FrontEndThread::ConnectionQueue::Entry>> = {<No data fields>}, <No data fields>}, _M_start = 0x0, _M_finish = 0x0, 
                    _M_end_of_storage = 0x0}}, <No data fields>}, mutex_ = {<std::__mutex_base> = {_M_mutex = {__data = {__lock = 0, __count = 0, __owner = 0, __nusers = 0, __kind = 0, __spins = 0, __list = {__prev = 0x0, __next = 0x0}}, 
                    __size = '\000' <repeats 39 times>, __align = 0}}, <No data fields>}}}}
#4  0x00007f5d66abc2d7 in run (this=0x7f5d62906a00) at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/cb_pthreads.cc:58
No locals.
#5  platform_thread_wrap (arg=0x7f5d62906a00) at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/cb_pthreads.cc:71
        context = {_M_t = {
            _M_t = {<std::_Tuple_impl<0, CouchbaseThread*, std::default_delete<CouchbaseThread> >> = {<std::_Tuple_impl<1, std::default_delete<CouchbaseThread> >> = {<std::_Head_base<1, std::default_delete<CouchbaseThread>, true>> = {<std::default_delete<CouchbaseThread>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::_Head_base<0, CouchbaseThread*, false>> = {_M_head_impl = 0x7f5d62906a00}, <No data fields>}, <No data fields>}}}
#6  0x00007f5d642f9e65 in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#7  0x00007f5d6402288d in clone () from /lib64/libc.so.6
No symbol table info available.

Thread 11 (Thread 0x7f5d54ff9700 (LWP 43953)):
#0  0x00007f5d642fd9f5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
No symbol table info available.
#1  0x00007f5d64adb1bc in __gthread_cond_wait (__mutex=<optimized out>, __cond=__cond@entry=0x7f5d62619158) at /tmp/deploy/objdir/x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu/bits/gthr-default.h:864
No locals.
#2  std::condition_variable::wait (this=this@entry=0x7f5d62619158, __lock=...) at /tmp/deploy/gcc-7.3.0/libstdc++-v3/src/c++11/condition_variable.cc:53
        __e = <optimized out>
#3  0x00000000004a1af1 in Executor::run (this=0x7f5d62619000) at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/daemon/executor.cc:44
        lock = {_M_device = 0x7f5d62619090, _M_owns = true}
        task = <optimized out>
        lock = {_M_device = 0x7f5d62619090, _M_owns = true}
#4  0x00007f5d66ac720f in Couchbase::Thread::thread_entry (this=0x7f5d62619000) at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/thread.cc:45
No locals.
#5  0x00007f5d66abc2d7 in run (this=0x7f5d62906970) at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/cb_pthreads.cc:58
No locals.
#6  platform_thread_wrap (arg=0x7f5d62906970) at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/cb_pthreads.cc:71
        context = {_M_t = {
            _M_t = {<std::_Tuple_impl<0, CouchbaseThread*, std::default_delete<CouchbaseThread> >> = {<std::_Tuple_impl<1, std::default_delete<CouchbaseThread> >> = {<std::_Head_base<1, std::default_delete<CouchbaseThread>, true>> = {<std::default_delete<CouchbaseThread>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::_Head_base<0, CouchbaseThread*, false>> = {_M_head_impl = 0x7f5d62906970}, <No data fields>}, <No data fields>}}}
#7  0x00007f5d642f9e65 in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#8  0x00007f5d6402288d in clone () from /lib64/libc.so.6
No symbol table info available.

Thread 10 (Thread 0x7f5d4ffff700 (LWP 43954)):
#0  0x00007f5d642fd9f5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
No symbol table info available.
#1  0x00007f5d64adb1bc in __gthread_cond_wait (__mutex=<optimized out>, __cond=__cond@entry=0x7f5d62619318) at /tmp/deploy/objdir/x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu/bits/gthr-default.h:864
No locals.
#2  std::condition_variable::wait (this=this@entry=0x7f5d62619318, __lock=...) at /tmp/deploy/gcc-7.3.0/libstdc++-v3/src/c++11/condition_variable.cc:53
        __e = <optimized out>
#3  0x00000000004a1af1 in Executor::run (this=0x7f5d626191c0) at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/daemon/executor.cc:44
        lock = {_M_device = 0x7f5d62619250, _M_owns = true}
        task = <optimized out>
        lock = {_M_device = 0x7f5d62619250, _M_owns = true}
#4  0x00007f5d66ac720f in Couchbase::Thread::thread_entry (this=0x7f5d626191c0) at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/thread.cc:45
No locals.
#5  0x00007f5d66abc2d7 in run (this=0x7f5d629069a0) at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/cb_pthreads.cc:58
No locals.
#6  platform_thread_wrap (arg=0x7f5d629069a0) at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/cb_pthreads.cc:71
        context = {_M_t = {
            _M_t = {<std::_Tuple_impl<0, CouchbaseThread*, std::default_delete<CouchbaseThread> >> = {<std::_Tuple_impl<1, std::default_delete<CouchbaseThread> >> = {<std::_Head_base<1, std::default_delete<CouchbaseThread>, true>> = {<std::default_delete<CouchbaseThread>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::_Head_base<0, CouchbaseThread*, false>> = {_M_head_impl = 0x7f5d629069a0}, <No data fields>}, <No data fields>}}}
#7  0x00007f5d642f9e65 in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#8  0x00007f5d6402288d in clone () from /lib64/libc.so.6
No symbol table info available.

Thread 9 (Thread 0x7f5d4f7fe700 (LWP 43955)):
#0  0x00007f5d642fd9f5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
No symbol table info available.
#1  0x00007f5d64adb1bc in __gthread_cond_wait (__mutex=<optimized out>, __cond=__cond@entry=0x7f5d626194d8) at /tmp/deploy/objdir/x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu/bits/gthr-default.h:864
No locals.
#2  std::condition_variable::wait (this=this@entry=0x7f5d626194d8, __lock=...) at /tmp/deploy/gcc-7.3.0/libstdc++-v3/src/c++11/condition_variable.cc:53
        __e = <optimized out>
#3  0x00000000004a1af1 in Executor::run (this=0x7f5d62619380) at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/daemon/executor.cc:44
        lock = {_M_device = 0x7f5d62619410, _M_owns = true}
        task = <optimized out>
        lock = {_M_device = 0x7f5d62619410, _M_owns = true}
#4  0x00007f5d66ac720f in Couchbase::Thread::thread_entry (this=0x7f5d62619380) at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/thread.cc:45
No locals.
#5  0x00007f5d66abc2d7 in run (this=0x7f5d629069d0) at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/cb_pthreads.cc:58
No locals.
#6  platform_thread_wrap (arg=0x7f5d629069d0) at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/cb_pthreads.cc:71
        context = {_M_t = {
            _M_t = {<std::_Tuple_impl<0, CouchbaseThread*, std::default_delete<CouchbaseThread> >> = {<std::_Tuple_impl<1, std::default_delete<CouchbaseThread> >> = {<std::_Head_base<1, std::default_delete<CouchbaseThread>, true>> = {<std::default_delete<CouchbaseThread>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::_Head_base<0, CouchbaseThread*, false>> = {_M_head_impl = 0x7f5d629069d0}, <No data fields>}, <No data fields>}}}
#7  0x00007f5d642f9e65 in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#8  0x00007f5d6402288d in clone () from /lib64/libc.so.6
No symbol table info available.

Thread 8 (Thread 0x7f5d4effd700 (LWP 43956)):
#0  0x00007f5d642fd9f5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
No symbol table info available.
#1  0x00007f5d64adb1bc in __gthread_cond_wait (__mutex=<optimized out>, __cond=__cond@entry=0x7f5d62619698) at /tmp/deploy/objdir/x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu/bits/gthr-default.h:864
No locals.
#2  std::condition_variable::wait (this=this@entry=0x7f5d62619698, __lock=...) at /tmp/deploy/gcc-7.3.0/libstdc++-v3/src/c++11/condition_variable.cc:53
        __e = <optimized out>
#3  0x00000000004a1af1 in Executor::run (this=0x7f5d62619540) at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/daemon/executor.cc:44
        lock = {_M_device = 0x7f5d626195d0, _M_owns = true}
        task = <optimized out>
        lock = {_M_device = 0x7f5d626195d0, _M_owns = true}
#4  0x00007f5d66ac720f in Couchbase::Thread::thread_entry (this=0x7f5d62619540) at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/thread.cc:45
No locals.
#5  0x00007f5d66abc2d7 in run (this=0x7f5d62906b80) at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/cb_pthreads.cc:58
No locals.
#6  platform_thread_wrap (arg=0x7f5d62906b80) at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/cb_pthreads.cc:71
        context = {_M_t = {
            _M_t = {<std::_Tuple_impl<0, CouchbaseThread*, std::default_delete<CouchbaseThread> >> = {<std::_Tuple_impl<1, std::default_delete<CouchbaseThread> >> = {<std::_Head_base<1, std::default_delete<CouchbaseThread>, true>> = {<std::default_delete<CouchbaseThread>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::_Head_base<0, CouchbaseThread*, false>> = {_M_head_impl = 0x7f5d62906b80}, <No data fields>}, <No data fields>}}}
#7  0x00007f5d642f9e65 in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#8  0x00007f5d6402288d in clone () from /lib64/libc.so.6
No symbol table info available.

Thread 7 (Thread 0x7f5d4e7fc700 (LWP 43957)):
#0  0x00007f5d642fd9f5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
No symbol table info available.
#1  0x00007f5d64adb1bc in __gthread_cond_wait (__mutex=<optimized out>, __cond=__cond@entry=0x7f5d62619858) at /tmp/deploy/objdir/x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu/bits/gthr-default.h:864
No locals.
#2  std::condition_variable::wait (this=this@entry=0x7f5d62619858, __lock=...) at /tmp/deploy/gcc-7.3.0/libstdc++-v3/src/c++11/condition_variable.cc:53
        __e = <optimized out>
#3  0x00000000004a1af1 in Executor::run (this=0x7f5d62619700) at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/daemon/executor.cc:44
        lock = {_M_device = 0x7f5d62619790, _M_owns = true}
        task = <optimized out>
        lock = {_M_device = 0x7f5d62619790, _M_owns = true}
#4  0x00007f5d66ac720f in Couchbase::Thread::thread_entry (this=0x7f5d62619700) at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/thread.cc:45
No locals.
#5  0x00007f5d66abc2d7 in run (this=0x7f5d62906c70) at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/cb_pthreads.cc:58
No locals.
#6  platform_thread_wrap (arg=0x7f5d62906c70) at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/cb_pthreads.cc:71
        context = {_M_t = {
            _M_t = {<std::_Tuple_impl<0, CouchbaseThread*, std::default_delete<CouchbaseThread> >> = {<std::_Tuple_impl<1, std::default_delete<CouchbaseThread> >> = {<std::_Head_base<1, std::default_delete<CouchbaseThread>, true>> = {<std::default_delete<CouchbaseThread>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::_Head_base<0, CouchbaseThread*, false>> = {_M_head_impl = 0x7f5d62906c70}, <No data fields>}, <No data fields>}}}
#7  0x00007f5d642f9e65 in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#8  0x00007f5d6402288d in clone () from /lib64/libc.so.6
No symbol table info available.

Thread 6 (Thread 0x7f5d4dffb700 (LWP 43958)):
#0  0x00007f5d642fd9f5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
No symbol table info available.
#1  0x00007f5d64adb1bc in __gthread_cond_wait (__mutex=<optimized out>, __cond=__cond@entry=0x7f5d62619a18) at /tmp/deploy/objdir/x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu/bits/gthr-default.h:864
No locals.
#2  std::condition_variable::wait (this=this@entry=0x7f5d62619a18, __lock=...) at /tmp/deploy/gcc-7.3.0/libstdc++-v3/src/c++11/condition_variable.cc:53
        __e = <optimized out>
#3  0x00000000004a1af1 in Executor::run (this=0x7f5d626198c0) at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/daemon/executor.cc:44
        lock = {_M_device = 0x7f5d62619950, _M_owns = true}
        task = <optimized out>
        lock = {_M_device = 0x7f5d62619950, _M_owns = true}
#4  0x00007f5d66ac720f in Couchbase::Thread::thread_entry (this=0x7f5d626198c0) at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/thread.cc:45
No locals.
#5  0x00007f5d66abc2d7 in run (this=0x7f5d62906b20) at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/cb_pthreads.cc:58
No locals.
#6  platform_thread_wrap (arg=0x7f5d62906b20) at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/cb_pthreads.cc:71
        context = {_M_t = {
            _M_t = {<std::_Tuple_impl<0, CouchbaseThread*, std::default_delete<CouchbaseThread> >> = {<std::_Tuple_impl<1, std::default_delete<CouchbaseThread> >> = {<std::_Head_base<1, std::default_delete<CouchbaseThread>, true>> = {<std::default_delete<CouchbaseThread>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::_Head_base<0, CouchbaseThread*, false>> = {_M_head_impl = 0x7f5d62906b20}, <No data fields>}, <No data fields>}}}
#7  0x00007f5d642f9e65 in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#8  0x00007f5d6402288d in clone () from /lib64/libc.so.6
No symbol table info available.

Thread 5 (Thread 0x7f5d4d7fa700 (LWP 43959)):
#0  0x00007f5d642fd9f5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
No symbol table info available.
#1  0x00007f5d64adb1bc in __gthread_cond_wait (__mutex=<optimized out>, __cond=__cond@entry=0x7f5d62619bd8) at /tmp/deploy/objdir/x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu/bits/gthr-default.h:864
No locals.
#2  std::condition_variable::wait (this=this@entry=0x7f5d62619bd8, __lock=...) at /tmp/deploy/gcc-7.3.0/libstdc++-v3/src/c++11/condition_variable.cc:53
        __e = <optimized out>
#3  0x00000000004a1af1 in Executor::run (this=0x7f5d62619a80) at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/daemon/executor.cc:44
        lock = {_M_device = 0x7f5d62619b10, _M_owns = true}
        task = <optimized out>
        lock = {_M_device = 0x7f5d62619b10, _M_owns = true}
#4  0x00007f5d66ac720f in Couchbase::Thread::thread_entry (this=0x7f5d62619a80) at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/thread.cc:45
No locals.
#5  0x00007f5d66abc2d7 in run (this=0x7f5d62906a90) at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/cb_pthreads.cc:58
No locals.
#6  platform_thread_wrap (arg=0x7f5d62906a90) at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/cb_pthreads.cc:71
        context = {_M_t = {
            _M_t = {<std::_Tuple_impl<0, CouchbaseThread*, std::default_delete<CouchbaseThread> >> = {<std::_Tuple_impl<1, std::default_delete<CouchbaseThread> >> = {<std::_Head_base<1, std::default_delete<CouchbaseThread>, true>> = {<std::default_delete<CouchbaseThread>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::_Head_base<0, CouchbaseThread*, false>> = {_M_head_impl = 0x7f5d62906a90}, <No data fields>}, <No data fields>}}}
#7  0x00007f5d642f9e65 in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#8  0x00007f5d6402288d in clone () from /lib64/libc.so.6
No symbol table info available.

Thread 4 (Thread 0x7f5d4cff9700 (LWP 43960)):
#0  0x00007f5d642fd9f5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
No symbol table info available.
#1  0x00007f5d64adb1bc in __gthread_cond_wait (__mutex=<optimized out>, __cond=__cond@entry=0x7f5d62619d98) at /tmp/deploy/objdir/x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu/bits/gthr-default.h:864
No locals.
#2  std::condition_variable::wait (this=this@entry=0x7f5d62619d98, __lock=...) at /tmp/deploy/gcc-7.3.0/libstdc++-v3/src/c++11/condition_variable.cc:53
        __e = <optimized out>
#3  0x00000000004a1af1 in Executor::run (this=0x7f5d62619c40) at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/daemon/executor.cc:44
        lock = {_M_device = 0x7f5d62619cd0, _M_owns = true}
        task = <optimized out>
        lock = {_M_device = 0x7f5d62619cd0, _M_owns = true}
#4  0x00007f5d66ac720f in Couchbase::Thread::thread_entry (this=0x7f5d62619c40) at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/thread.cc:45
No locals.
#5  0x00007f5d66abc2d7 in run (this=0x7f5d62906ac0) at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/cb_pthreads.cc:58
No locals.
#6  platform_thread_wrap (arg=0x7f5d62906ac0) at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/cb_pthreads.cc:71
        context = {_M_t = {
            _M_t = {<std::_Tuple_impl<0, CouchbaseThread*, std::default_delete<CouchbaseThread> >> = {<std::_Tuple_impl<1, std::default_delete<CouchbaseThread> >> = {<std::_Head_base<1, std::default_delete<CouchbaseThread>, true>> = {<std::default_delete<CouchbaseThread>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::_Head_base<0, CouchbaseThread*, false>> = {_M_head_impl = 0x7f5d62906ac0}, <No data fields>}, <No data fields>}}}
#7  0x00007f5d642f9e65 in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#8  0x00007f5d6402288d in clone () from /lib64/libc.so.6
No symbol table info available.

Thread 3 (Thread 0x7f5d4c7f8700 (LWP 43961)):
#0  0x00007f5d642fd9f5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
No symbol table info available.
#1  0x00007f5d64adb1bc in __gthread_cond_wait (__mutex=<optimized out>, __cond=__cond@entry=0x7f5d62619f58) at /tmp/deploy/objdir/x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu/bits/gthr-default.h:864
No locals.
#2  std::condition_variable::wait (this=this@entry=0x7f5d62619f58, __lock=...) at /tmp/deploy/gcc-7.3.0/libstdc++-v3/src/c++11/condition_variable.cc:53
        __e = <optimized out>
#3  0x00000000004a1af1 in Executor::run (this=0x7f5d62619e00) at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/daemon/executor.cc:44
        lock = {_M_device = 0x7f5d62619e90, _M_owns = true}
        task = <optimized out>
        lock = {_M_device = 0x7f5d62619e90, _M_owns = true}
#4  0x00007f5d66ac720f in Couchbase::Thread::thread_entry (this=0x7f5d62619e00) at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/thread.cc:45
No locals.
#5  0x00007f5d66abc2d7 in run (this=0x7f5d62906af0) at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/cb_pthreads.cc:58
No locals.
#6  platform_thread_wrap (arg=0x7f5d62906af0) at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/cb_pthreads.cc:71
        context = {_M_t = {
            _M_t = {<std::_Tuple_impl<0, CouchbaseThread*, std::default_delete<CouchbaseThread> >> = {<std::_Tuple_impl<1, std::default_delete<CouchbaseThread> >> = {<std::_Head_base<1, std::default_delete<CouchbaseThread>, true>> = {<std::default_delete<CouchbaseThread>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::_Head_base<0, CouchbaseThread*, false>> = {_M_head_impl = 0x7f5d62906af0}, <No data fields>}, <No data fields>}}}
#7  0x00007f5d642f9e65 in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#8  0x00007f5d6402288d in clone () from /lib64/libc.so.6
No symbol table info available.

Thread 2 (Thread 0x7f5d4bff7700 (LWP 43962)):
#0  0x00007f5d642fd9f5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
No symbol table info available.
#1  0x00007f5d64adb1bc in __gthread_cond_wait (__mutex=<optimized out>, __cond=__cond@entry=0x7f5d6261a118) at /tmp/deploy/objdir/x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu/bits/gthr-default.h:864
No locals.
#2  std::condition_variable::wait (this=this@entry=0x7f5d6261a118, __lock=...) at /tmp/deploy/gcc-7.3.0/libstdc++-v3/src/c++11/condition_variable.cc:53
        __e = <optimized out>
#3  0x00000000004a1af1 in Executor::run (this=0x7f5d62619fc0) at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/daemon/executor.cc:44
        lock = {_M_device = 0x7f5d6261a050, _M_owns = true}
        task = <optimized out>
        lock = {_M_device = 0x7f5d6261a050, _M_owns = true}
#4  0x00007f5d66ac720f in Couchbase::Thread::thread_entry (this=0x7f5d62619fc0) at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/thread.cc:45
No locals.
#5  0x00007f5d66abc2d7 in run (this=0x7f5d62906ca0) at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/cb_pthreads.cc:58
No locals.
#6  platform_thread_wrap (arg=0x7f5d62906ca0) at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/cb_pthreads.cc:71
        context = {_M_t = {
            _M_t = {<std::_Tuple_impl<0, CouchbaseThread*, std::default_delete<CouchbaseThread> >> = {<std::_Tuple_impl<1, std::default_delete<CouchbaseThread> >> = {<std::_Head_base<1, std::default_delete<CouchbaseThread>, true>> = {<std::default_delete<CouchbaseThread>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::_Head_base<0, CouchbaseThread*, false>> = {_M_head_impl = 0x7f5d62906ca0}, <No data fields>}, <No data fields>}}}
#7  0x00007f5d642f9e65 in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#8  0x00007f5d6402288d in clone () from /lib64/libc.so.6
No symbol table info available.

Thread 1 (Thread 0x7f5d69454400 (LWP 43932)):
#0  0x00007f5d64022e63 in epoll_wait () from /lib64/libc.so.6
No symbol table info available.
#1  0x00007f5d65b943c5 in epoll_dispatch (base=0x7f5d6381cc00, tv=<optimized out>) at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/libevent/libevent-prefix/src/libevent/epoll.c:465
        epollop = 0x7f5d6281a880
        events = 0x7f5d63859900
        i = <optimized out>
        res = <optimized out>
        timeout = <optimized out>
        __func__ = "epoll_dispatch"
#2  0x00007f5d65b8b376 in event_base_loop (base=0x7f5d6381cc00, flags=flags@entry=0) at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/libevent/libevent-prefix/src/libevent/event.c:1998
        evsel = 0x7f5d65d9ec20 <epollops>
        tv = {tv_sec = 1, tv_usec = 0}
        tv_p = <optimized out>
        res = <optimized out>
        done = 0
        retval = 0
        __func__ = "event_base_loop"
#3  0x0000000000427763 in memcached_main (argc=<optimized out>, argv=<optimized out>) at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/daemon/memcached.cc:1531
        numa_status = {static npos = 18446744073709551615, _M_dataplus = {<std::allocator<char>> = {<__gnu_cxx::new_allocator<char>> = {<No data fields>}, <No data fields>}, _M_p = 0x7f5d63865960 "Set memory allocation policy to 'interleave'"}, 
          _M_string_length = 44, {_M_local_buf = ",\000\000\000\000\000\000\000\000\001\000\000\000\000\000", _M_allocated_capacity = 44}}
        parent_monitor = {_M_t = {
            _M_t = {<std::_Tuple_impl<0, ParentMonitor*, std::default_delete<ParentMonitor> >> = {<std::_Tuple_impl<1, std::default_delete<ParentMonitor> >> = {<std::_Head_base<1, std::default_delete<ParentMonitor>, true>> = {<std::default_delete<ParentMonitor>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::_Head_base<0, ParentMonitor*, false>> = {_M_head_impl = 0x0}, <No data fields>}, <No data fields>}}}
        phosphor_internal_category_enabled_1507 = {_M_b = {_M_p = 0x7f5d66aaa67b <phosphor::TraceLog::getInstance()::log_instance+8283>}, 
          static is_always_lock_free = <error reading variable: No global symbol "std::atomic<std::atomic<phosphor::CategoryStatus> const*>::is_always_lock_free".>}
        phosphor_internal_category_enabled_temp_1507 = <optimized out>
        phosphor_internal_tpi_1507 = {category = 0x58e48e "memcached", name = 0x58e716 "Started", type = phosphor::GlobalInstant, argument_names = {_M_elems = {0x5ab013 "", 0x5ab013 ""}}, argument_types = {_M_elems = {phosphor::is_none, 
              phosphor::is_none}}}
#4  0x00007f5d63f46505 in __libc_start_main () from /lib64/libc.so.6
No symbol table info available.
#5  0x000000000041fb55 in _start ()
No symbol table info available.
A debugging session is active.

	Inferior 1 [process 43932] will be detached.

Quit anyway? (y or n) Detaching from program: /opt/couchbase/bin/memcached, process 43932