GNU gdb (GDB) Red Hat Enterprise Linux 7.6.1-119.el7
Copyright (C) 2013 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
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<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from /opt/couchbase/bin/memcached...Reading symbols from /usr/lib/debug/opt/couchbase/bin/memcached.debug...done.
done.
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[New LWP 99176]
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Core was generated by `/opt/couchbase/bin/memcached -C /opt/couchbase/var/lib/couchbase/config/memcach'.
#0  load (__m=std::memory_order_relaxed, this=0x7fc77835859000) at /usr/local/include/c++/7.3.0/bits/atomic_base.h:396

Thread 32 (LWP 99176):
#0  0x00007fc7b8fded12 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fc7baaade51 in background_thread_sleep (tsdn=<optimized out>, interval=3175000000, info=<optimized out>) at src/background_thread.c:255
#2  background_work_sleep_once (ind=<optimized out>, info=<optimized out>, tsdn=<optimized out>) at src/background_thread.c:307
#3  background_work (ind=<optimized out>, tsd=0x7fc741fe6a60) at src/background_thread.c:497
#4  background_thread_entry (ind_arg=<optimized out>) at src/background_thread.c:522
#5  0x00007fc7b8fdadd5 in __nptl_deallocate_tsd () from /lib64/libpthread.so.0
#6  0x00007fc741fff700 in ?? ()
#7  0x3940f9082ebba549 in ?? ()
#8  0x39410b0fb141a549 in ?? ()
#9  0x0000000000000000 in ?? ()

Thread 31 (LWP 99171):
#0  0x00007fc7b8d04483 in __open_by_handle_at_nocancel () from /lib64/libc.so.6
#1  0x0000000000000000 in ?? ()

Thread 30 (LWP 99169):
#0  0x00007fc7b8cfe1c9 in fcvt_r () from /lib64/libc.so.6
#1  0x00007fc7717e0f40 in ?? ()
#2  0x00007fc7bd308d37 in futexWaitPreIdle<std::atomic<unsigned int>, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1, 1000000000> > >, std::chrono::duration<long, std::ratio<1, 1000000000> > > (timeoutVariationFrac=0.5, stackToRetain=1024, idleTimeout=..., waitMask=4294967295, deadline=..., expected=2, fut=..., _ret=<synthetic pointer>)
    at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/MemoryIdler.h:194
#3  futexWaitUntil<std::atomic<unsigned int>, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1, 1000000000> > > > (timeoutVariationFrac=0.5, stackToRetain=1024, idleTimeout=..., 
    waitMask=4294967295, deadline=..., expected=2, fut=...) at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/MemoryIdler.h:151
#4  folly::SaturatingSemaphore<true, std::atomic>::tryWaitSlow<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > (this=0x14eb5fa8, this@entry=0x7fc7787d7510, deadline=..., opt=...)
    at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/SaturatingSemaphore.h:318
#5  0x00007fc7bd309266 in try_wait_until<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1, 1000000000> > > (opt=..., deadline=..., this=<optimized out>)
    at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/SaturatingSemaphore.h:179
#6  folly::detail::LifoSemBase<folly::SaturatingSemaphore<true, std::atomic>, std::atomic>::try_wait_until<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > (this=this@entry=0x7fc780002d40, 
    deadline=...) at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/LifoSem.h:521
#7  0x00007fc7bd30c9c0 in try_wait_for<long, std::ratio<1, 1000> > (timeout=<synthetic pointer>, this=0x7fc780002d40)
    at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/LifoSem.h:498
#8  folly::UnboundedBlockingQueue<folly::CPUThreadPoolExecutor::CPUTask>::try_take_for (this=0x7fc780002d00, time=...)
    at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/executors/task_queue/UnboundedBlockingQueue.h:41
#9  0x00007fc7bd301657 in folly::CPUThreadPoolExecutor::threadRun (this=0x7fc7a8e25400, thread=...)
    at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/executors/CPUThreadPoolExecutor.cpp:243
#10 0x00007fc7bd31c2f9 in __invoke_impl<void, void (folly::ThreadPoolExecutor::*&)(std::shared_ptr<folly::ThreadPoolExecutor::Thread>), folly::ThreadPoolExecutor*&, std::shared_ptr<folly::ThreadPoolExecutor::Thread>&> (
    __t=<optimized out>, __f=<optimized out>) at /usr/local/include/c++/7.3.0/bits/invoke.h:73
#11 __invoke<void (folly::ThreadPoolExecutor::*&)(std::shared_ptr<folly::ThreadPoolExecutor::Thread>), folly::ThreadPoolExecutor*&, std::shared_ptr<folly::ThreadPoolExecutor::Thread>&> (__fn=<optimized out>)
    at /usr/local/include/c++/7.3.0/bits/invoke.h:95
#12 __call<void, 0, 1> (__args=<optimized out>, this=<optimized out>) at /usr/local/include/c++/7.3.0/functional:467
#13 operator()<> (this=<optimized out>) at /usr/local/include/c++/7.3.0/functional:551
#14 folly::detail::function::FunctionTraits<void ()>::callBig<std::_Bind<void (folly::ThreadPoolExecutor::*(folly::ThreadPoolExecutor*, std::shared_ptr<folly::ThreadPoolExecutor::Thread>))(std::shared_ptr<folly::ThreadPoolExecutor::Thread>)> >(folly::detail::function::Data&) (p=...) at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/Function.h:401
#15 0x00007fc7bd1980d3 in operator() (this=0x7fc7b77c2480) at /home/couchbase/jenkins/workspace/couchbase-server-unix/server_build/tlm/deps/folly.exploded/include/folly/Function.h:416
#16 operator() (__closure=0x7fc7b77c2470) at /home/couchbase/jenkins/workspace/couchbase-server-unix/server_build/tlm/deps/folly.exploded/include/folly/executors/thread_factory/PriorityThreadFactory.h:54
#17 folly::detail::function::FunctionTraits<void ()>::callBig<folly::PriorityThreadFactory::newThread(folly::Function<void ()>&&)::{lambda()#1}>(folly::detail::function::Data&) (p=...)
    at /home/couchbase/jenkins/workspace/couchbase-server-unix/server_build/tlm/deps/folly.exploded/include/folly/Function.h:401
#18 0x00007fc7b97c1dcf in std::execute_native_thread_routine (__p=0x7fc7a8cee670) at /tmp/deploy/gcc-7.3.0/libstdc++-v3/src/c++11/thread.cc:83
#19 0x00007fc7b8fdadd5 in __nptl_deallocate_tsd () from /lib64/libpthread.so.0
#20 0x00007fc7717fa700 in ?? ()
#21 0x39409808cebba549 in ?? ()
#22 0x39410b0fb141a549 in ?? ()
#23 0x0000000000000000 in ?? ()

Thread 29 (LWP 99168):
#0  0x00007fc7b8cfe1c9 in fcvt_r () from /lib64/libc.so.6
#1  0x00007fc771fe1f40 in ?? ()
#2  0x00007fc7bd308d37 in futexWaitPreIdle<std::atomic<unsigned int>, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1, 1000000000> > >, std::chrono::duration<long, std::ratio<1, 1000000000> > > (timeoutVariationFrac=0.5, stackToRetain=1024, idleTimeout=..., waitMask=4294967295, deadline=..., expected=2, fut=..., _ret=<synthetic pointer>)
    at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/MemoryIdler.h:194
#3  futexWaitUntil<std::atomic<unsigned int>, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1, 1000000000> > > > (timeoutVariationFrac=0.5, stackToRetain=1024, idleTimeout=..., 
    waitMask=4294967295, deadline=..., expected=2, fut=...) at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/MemoryIdler.h:151
#4  folly::SaturatingSemaphore<true, std::atomic>::tryWaitSlow<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > (this=0x2604909b, this@entry=0x7fc7787d7318, deadline=..., opt=...)
    at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/SaturatingSemaphore.h:318
#5  0x00007fc7bd309266 in try_wait_until<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1, 1000000000> > > (opt=..., deadline=..., this=<optimized out>)
    at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/SaturatingSemaphore.h:179
#6  folly::detail::LifoSemBase<folly::SaturatingSemaphore<true, std::atomic>, std::atomic>::try_wait_until<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > (this=this@entry=0x7fc7800027c0, 
    deadline=...) at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/LifoSem.h:521
#7  0x00007fc7bd30c9c0 in try_wait_for<long, std::ratio<1, 1000> > (timeout=<synthetic pointer>, this=0x7fc7800027c0)
    at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/LifoSem.h:498
#8  folly::UnboundedBlockingQueue<folly::CPUThreadPoolExecutor::CPUTask>::try_take_for (this=0x7fc780002780, time=...)
    at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/executors/task_queue/UnboundedBlockingQueue.h:41
#9  0x00007fc7bd301657 in folly::CPUThreadPoolExecutor::threadRun (this=0x7fc7a8e24800, thread=...)
    at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/executors/CPUThreadPoolExecutor.cpp:243
#10 0x00007fc7bd31c2f9 in __invoke_impl<void, void (folly::ThreadPoolExecutor::*&)(std::shared_ptr<folly::ThreadPoolExecutor::Thread>), folly::ThreadPoolExecutor*&, std::shared_ptr<folly::ThreadPoolExecutor::Thread>&> (
    __t=<optimized out>, __f=<optimized out>) at /usr/local/include/c++/7.3.0/bits/invoke.h:73
#11 __invoke<void (folly::ThreadPoolExecutor::*&)(std::shared_ptr<folly::ThreadPoolExecutor::Thread>), folly::ThreadPoolExecutor*&, std::shared_ptr<folly::ThreadPoolExecutor::Thread>&> (__fn=<optimized out>)
    at /usr/local/include/c++/7.3.0/bits/invoke.h:95
#12 __call<void, 0, 1> (__args=<optimized out>, this=<optimized out>) at /usr/local/include/c++/7.3.0/functional:467
#13 operator()<> (this=<optimized out>) at /usr/local/include/c++/7.3.0/functional:551
#14 folly::detail::function::FunctionTraits<void ()>::callBig<std::_Bind<void (folly::ThreadPoolExecutor::*(folly::ThreadPoolExecutor*, std::shared_ptr<folly::ThreadPoolExecutor::Thread>))(std::shared_ptr<folly::ThreadPoolExecutor::Thread>)> >(folly::detail::function::Data&) (p=...) at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/Function.h:401
#15 0x00007fc7bd1980d3 in operator() (this=0x7fc7b77c2390) at /home/couchbase/jenkins/workspace/couchbase-server-unix/server_build/tlm/deps/folly.exploded/include/folly/Function.h:416
#16 operator() (__closure=0x7fc7b77c2380) at /home/couchbase/jenkins/workspace/couchbase-server-unix/server_build/tlm/deps/folly.exploded/include/folly/executors/thread_factory/PriorityThreadFactory.h:54
#17 folly::detail::function::FunctionTraits<void ()>::callBig<folly::PriorityThreadFactory::newThread(folly::Function<void ()>&&)::{lambda()#1}>(folly::detail::function::Data&) (p=...)
    at /home/couchbase/jenkins/workspace/couchbase-server-unix/server_build/tlm/deps/folly.exploded/include/folly/Function.h:401
#18 0x00007fc7b97c1dcf in std::execute_native_thread_routine (__p=0x7fc7a8cee600) at /tmp/deploy/gcc-7.3.0/libstdc++-v3/src/c++11/thread.cc:83
#19 0x00007fc7b8fdadd5 in __nptl_deallocate_tsd () from /lib64/libpthread.so.0
#20 0x00007fc771ffb700 in ?? ()
#21 0x39409908aebba549 in ?? ()
#22 0x39410b0fb141a549 in ?? ()
#23 0x0000000000000000 in ?? ()

Thread 28 (LWP 99167):
#0  0x00007fc7b8cfe1c9 in fcvt_r () from /lib64/libc.so.6
#1  0x00000000001ea279 in ?? ()
#2  0x00007fc7bd308d37 in futexWaitPreIdle<std::atomic<unsigned int>, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1, 1000000000> > >, std::chrono::duration<long, std::ratio<1, 1000000000> > > (timeoutVariationFrac=0.5, stackToRetain=1024, idleTimeout=..., waitMask=4294967295, deadline=..., expected=2, fut=..., _ret=<synthetic pointer>)
    at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/MemoryIdler.h:194
#3  futexWaitUntil<std::atomic<unsigned int>, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1, 1000000000> > > > (timeoutVariationFrac=0.5, stackToRetain=1024, idleTimeout=..., 
    waitMask=4294967295, deadline=..., expected=2, fut=...) at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/MemoryIdler.h:151
#4  folly::SaturatingSemaphore<true, std::atomic>::tryWaitSlow<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > (this=0x14565175, this@entry=0x7fc7787d7660, deadline=..., opt=...)
    at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/SaturatingSemaphore.h:318
#5  0x00007fc7bd309266 in try_wait_until<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1, 1000000000> > > (opt=..., deadline=..., this=<optimized out>)
    at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/SaturatingSemaphore.h:179
#6  folly::detail::LifoSemBase<folly::SaturatingSemaphore<true, std::atomic>, std::atomic>::try_wait_until<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > (this=this@entry=0x7fc7800018c0, 
    deadline=...) at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/LifoSem.h:521
#7  0x00007fc7bd30c9c0 in try_wait_for<long, std::ratio<1, 1000> > (timeout=<synthetic pointer>, this=0x7fc7800018c0)
    at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/LifoSem.h:498
#8  folly::UnboundedBlockingQueue<folly::CPUThreadPoolExecutor::CPUTask>::try_take_for (this=0x7fc780001880, time=...)
    at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/executors/task_queue/UnboundedBlockingQueue.h:41
#9  0x00007fc7bd301657 in folly::CPUThreadPoolExecutor::threadRun (this=0x7fc7a8e23c00, thread=...)
    at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/executors/CPUThreadPoolExecutor.cpp:243
#10 0x00007fc7bd31c2f9 in __invoke_impl<void, void (folly::ThreadPoolExecutor::*&)(std::shared_ptr<folly::ThreadPoolExecutor::Thread>), folly::ThreadPoolExecutor*&, std::shared_ptr<folly::ThreadPoolExecutor::Thread>&> (
    __t=<optimized out>, __f=<optimized out>) at /usr/local/include/c++/7.3.0/bits/invoke.h:73
#11 __invoke<void (folly::ThreadPoolExecutor::*&)(std::shared_ptr<folly::ThreadPoolExecutor::Thread>), folly::ThreadPoolExecutor*&, std::shared_ptr<folly::ThreadPoolExecutor::Thread>&> (__fn=<optimized out>)
    at /usr/local/include/c++/7.3.0/bits/invoke.h:95
#12 __call<void, 0, 1> (__args=<optimized out>, this=<optimized out>) at /usr/local/include/c++/7.3.0/functional:467
#13 operator()<> (this=<optimized out>) at /usr/local/include/c++/7.3.0/functional:551
#14 folly::detail::function::FunctionTraits<void ()>::callBig<std::_Bind<void (folly::ThreadPoolExecutor::*(folly::ThreadPoolExecutor*, std::shared_ptr<folly::ThreadPoolExecutor::Thread>))(std::shared_ptr<folly::ThreadPoolExecutor::Thread>)> >(folly::detail::function::Data&) (p=...) at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/Function.h:401
#15 0x00007fc7bd1980d3 in operator() (this=0x7fc7b77c22f0) at /home/couchbase/jenkins/workspace/couchbase-server-unix/server_build/tlm/deps/folly.exploded/include/folly/Function.h:416
#16 operator() (__closure=0x7fc7b77c22e0) at /home/couchbase/jenkins/workspace/couchbase-server-unix/server_build/tlm/deps/folly.exploded/include/folly/executors/thread_factory/PriorityThreadFactory.h:54
#17 folly::detail::function::FunctionTraits<void ()>::callBig<folly::PriorityThreadFactory::newThread(folly::Function<void ()>&&)::{lambda()#1}>(folly::detail::function::Data&) (p=...)
    at /home/couchbase/jenkins/workspace/couchbase-server-unix/server_build/tlm/deps/folly.exploded/include/folly/Function.h:401
#18 0x00007fc7b97c1dcf in std::execute_native_thread_routine (__p=0x7fc7a8cee590) at /tmp/deploy/gcc-7.3.0/libstdc++-v3/src/c++11/thread.cc:83
#19 0x00007fc7b8fdadd5 in __nptl_deallocate_tsd () from /lib64/libpthread.so.0
#20 0x00007fc7727fc700 in ?? ()
#21 0x39409e088ebba549 in ?? ()
#22 0x39410b0fb141a549 in ?? ()
#23 0x0000000000000000 in ?? ()

Thread 27 (LWP 99166):
#0  FindMatchLength (s2_limit=0x7fc740ac16d7 <Address 0x7fc740ac16d7 out of bounds>, s2=0x7fc740ac157c <Address 0x7fc740ac157c out of bounds>, s1=0x7fc740ac140e <Address 0x7fc740ac140e out of bounds>)
    at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/snappy/snappy-prefix/src/snappy/snappy-internal.h:104
#1  snappy::internal::CompressFragment (input=input@entry=0x7fc740ac1380 <Address 0x7fc740ac1380 out of bounds>, input_size=<optimized out>, op=0x7fc73aef8308 <Address 0x7fc73aef8308 out of bounds>, 
    op@entry=0x7fc73aef8202 <Address 0x7fc73aef8202 out of bounds>, table=table@entry=0x7fc772fd2180, table_size=<optimized out>)
    at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/snappy/snappy-prefix/src/snappy/snappy.cc:420
#2  0x00007fc7baf59c86 in snappy::Compress (reader=reader@entry=0x7fc772fd29e0, writer=writer@entry=0x7fc772fd29d0)
    at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/snappy/snappy-prefix/src/snappy/snappy.cc:941
#3  0x00007fc7baf5afa1 in snappy::RawCompress (input=input@entry=0x7fc740ac1380 <Address 0x7fc740ac1380 out of bounds>, input_length=input_length@entry=855, compressed=0x7fc73aef8200 <Address 0x7fc73aef8200 out of bounds>, 
    compressed_length=compressed_length@entry=0x7fc772fd2a38) at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/snappy/snappy-prefix/src/snappy/snappy.cc:1287
#4  0x00007fc7bbc74322 in doSnappyCompress (output=..., input=...) at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/cbcompress/compress.cc:61
#5  cb::compression::deflate (algorithm=algorithm@entry=cb::compression::Snappy, input_buffer=..., output=...) at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/cbcompress/compress.cc:170
#6  0x00007fc7bcab94e9 in db_write_buf_compressed (file=0x7fc740653c40, buf=buf@entry=0x7fc772fd2b40, pos=pos@entry=0x7fc772fd2b30, disk_size=disk_size@entry=0x7fc772fd2b38)
    at /home/couchbase/jenkins/workspace/couchbase-server-unix/couchstore/src/couch_file_write.cc:188
#7  0x00007fc7bcaa4df1 in flush_mr_partial (res=0x7fc740c13468, res@entry=<error reading variable: Cannot access memory at address 0x7fc772fe2b88>, mr_quota=<optimized out>)
    at /home/couchbase/jenkins/workspace/couchbase-server-unix/couchstore/src/btree_modify.cc:253

Thread 26 (LWP 99165):
#0  0x00007fc7b8cfe1c9 in fcvt_r () from /lib64/libc.so.6
#1  0x00007fc7737e4f38 in ?? ()
#2  0x00007fc7bd308d37 in futexWaitPreIdle<std::atomic<unsigned int>, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1, 1000000000> > >, std::chrono::duration<long, std::ratio<1, 1000000000> > > (timeoutVariationFrac=0.5, stackToRetain=1024, idleTimeout=..., waitMask=4294967295, deadline=..., expected=2, fut=..., _ret=<synthetic pointer>)
    at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/MemoryIdler.h:194
#3  futexWaitUntil<std::atomic<unsigned int>, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1, 1000000000> > > > (timeoutVariationFrac=0.5, stackToRetain=1024, idleTimeout=..., 
    waitMask=4294967295, deadline=..., expected=2, fut=...) at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/MemoryIdler.h:151
#4  folly::SaturatingSemaphore<true, std::atomic>::tryWaitSlow<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > (this=0x189f4f15, this@entry=0x7fc7787d7648, deadline=..., opt=...)
    at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/SaturatingSemaphore.h:318
#5  0x00007fc7bd309266 in try_wait_until<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1, 1000000000> > > (opt=..., deadline=..., this=<optimized out>)
    at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/SaturatingSemaphore.h:179
#6  folly::detail::LifoSemBase<folly::SaturatingSemaphore<true, std::atomic>, std::atomic>::try_wait_until<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > (this=this@entry=0x7fc7800018c0, 
    deadline=...) at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/LifoSem.h:521
#7  0x00007fc7bd30c9c0 in try_wait_for<long, std::ratio<1, 1000> > (timeout=<synthetic pointer>, this=0x7fc7800018c0)
    at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/LifoSem.h:498
#8  folly::UnboundedBlockingQueue<folly::CPUThreadPoolExecutor::CPUTask>::try_take_for (this=0x7fc780001880, time=...)
    at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/executors/task_queue/UnboundedBlockingQueue.h:41
#9  0x00007fc7bd301657 in folly::CPUThreadPoolExecutor::threadRun (this=0x7fc7a8e23c00, thread=...)
    at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/executors/CPUThreadPoolExecutor.cpp:243
#10 0x00007fc7bd31c2f9 in __invoke_impl<void, void (folly::ThreadPoolExecutor::*&)(std::shared_ptr<folly::ThreadPoolExecutor::Thread>), folly::ThreadPoolExecutor*&, std::shared_ptr<folly::ThreadPoolExecutor::Thread>&> (
    __t=<optimized out>, __f=<optimized out>) at /usr/local/include/c++/7.3.0/bits/invoke.h:73
#11 __invoke<void (folly::ThreadPoolExecutor::*&)(std::shared_ptr<folly::ThreadPoolExecutor::Thread>), folly::ThreadPoolExecutor*&, std::shared_ptr<folly::ThreadPoolExecutor::Thread>&> (__fn=<optimized out>)
    at /usr/local/include/c++/7.3.0/bits/invoke.h:95
#12 __call<void, 0, 1> (__args=<optimized out>, this=<optimized out>) at /usr/local/include/c++/7.3.0/functional:467
#13 operator()<> (this=<optimized out>) at /usr/local/include/c++/7.3.0/functional:551
#14 folly::detail::function::FunctionTraits<void ()>::callBig<std::_Bind<void (folly::ThreadPoolExecutor::*(folly::ThreadPoolExecutor*, std::shared_ptr<folly::ThreadPoolExecutor::Thread>))(std::shared_ptr<folly::ThreadPoolExecutor::Thread>)> >(folly::detail::function::Data&) (p=...) at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/Function.h:401
#15 0x00007fc7bd1980d3 in operator() (this=0x7fc7b77c2250) at /home/couchbase/jenkins/workspace/couchbase-server-unix/server_build/tlm/deps/folly.exploded/include/folly/Function.h:416
#16 operator() (__closure=0x7fc7b77c2240) at /home/couchbase/jenkins/workspace/couchbase-server-unix/server_build/tlm/deps/folly.exploded/include/folly/executors/thread_factory/PriorityThreadFactory.h:54
#17 folly::detail::function::FunctionTraits<void ()>::callBig<folly::PriorityThreadFactory::newThread(folly::Function<void ()>&&)::{lambda()#1}>(folly::detail::function::Data&) (p=...)
    at /home/couchbase/jenkins/workspace/couchbase-server-unix/server_build/tlm/deps/folly.exploded/include/folly/Function.h:401
#18 0x00007fc7b97c1dcf in std::execute_native_thread_routine (__p=0x7fc7a8cee4b0) at /tmp/deploy/gcc-7.3.0/libstdc++-v3/src/c++11/thread.cc:83
#19 0x00007fc7b8fdadd5 in __nptl_deallocate_tsd () from /lib64/libpthread.so.0
#20 0x00007fc7737fe700 in ?? ()
#21 0x39409c084ebba549 in ?? ()
#22 0x39410b0fb141a549 in ?? ()
#23 0x0000000000000000 in ?? ()

Thread 25 (LWP 99164):
#0  0x00007fc7b8cfb1ad in ptrace () from /lib64/libc.so.6
#1  0x0000000000000000 in ?? ()

Thread 24 (LWP 99163):
#0  0x00007fc7b8cfe1c9 in fcvt_r () from /lib64/libc.so.6
#1  0x00007fc77a7e2f40 in ?? ()
#2  0x00007fc7bd308d37 in futexWaitPreIdle<std::atomic<unsigned int>, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1, 1000000000> > >, std::chrono::duration<long, std::ratio<1, 1000000000> > > (timeoutVariationFrac=0.5, stackToRetain=1024, idleTimeout=..., waitMask=4294967295, deadline=..., expected=2, fut=..., _ret=<synthetic pointer>)
    at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/MemoryIdler.h:194
#3  futexWaitUntil<std::atomic<unsigned int>, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1, 1000000000> > > > (timeoutVariationFrac=0.5, stackToRetain=1024, idleTimeout=..., 
    waitMask=4294967295, deadline=..., expected=2, fut=...) at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/MemoryIdler.h:151
#4  folly::SaturatingSemaphore<true, std::atomic>::tryWaitSlow<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > (this=0x329a8462, this@entry=0x7fc7787d7018, deadline=..., opt=...)
    at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/SaturatingSemaphore.h:318
#5  0x00007fc7bd309266 in try_wait_until<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1, 1000000000> > > (opt=..., deadline=..., this=<optimized out>)
    at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/SaturatingSemaphore.h:179
#6  folly::detail::LifoSemBase<folly::SaturatingSemaphore<true, std::atomic>, std::atomic>::try_wait_until<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > (this=this@entry=0x7fc780000a40, 
    deadline=...) at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/LifoSem.h:521
#7  0x00007fc7bd30c9c0 in try_wait_for<long, std::ratio<1, 1000> > (timeout=<synthetic pointer>, this=0x7fc780000a40)
    at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/LifoSem.h:498
#8  folly::UnboundedBlockingQueue<folly::CPUThreadPoolExecutor::CPUTask>::try_take_for (this=0x7fc780000a00, time=...)
    at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/executors/task_queue/UnboundedBlockingQueue.h:41
#9  0x00007fc7bd301657 in folly::CPUThreadPoolExecutor::threadRun (this=0x7fc7a8e23000, thread=...)
    at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/executors/CPUThreadPoolExecutor.cpp:243
#10 0x00007fc7bd31c2f9 in __invoke_impl<void, void (folly::ThreadPoolExecutor::*&)(std::shared_ptr<folly::ThreadPoolExecutor::Thread>), folly::ThreadPoolExecutor*&, std::shared_ptr<folly::ThreadPoolExecutor::Thread>&> (
    __t=<optimized out>, __f=<optimized out>) at /usr/local/include/c++/7.3.0/bits/invoke.h:73
#11 __invoke<void (folly::ThreadPoolExecutor::*&)(std::shared_ptr<folly::ThreadPoolExecutor::Thread>), folly::ThreadPoolExecutor*&, std::shared_ptr<folly::ThreadPoolExecutor::Thread>&> (__fn=<optimized out>)
    at /usr/local/include/c++/7.3.0/bits/invoke.h:95
#12 __call<void, 0, 1> (__args=<optimized out>, this=<optimized out>) at /usr/local/include/c++/7.3.0/functional:467
#13 operator()<> (this=<optimized out>) at /usr/local/include/c++/7.3.0/functional:551
#14 folly::detail::function::FunctionTraits<void ()>::callBig<std::_Bind<void (folly::ThreadPoolExecutor::*(folly::ThreadPoolExecutor*, std::shared_ptr<folly::ThreadPoolExecutor::Thread>))(std::shared_ptr<folly::ThreadPoolExecutor::Thread>)> >(folly::detail::function::Data&) (p=...) at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/Function.h:401
#15 0x00007fc7bd1980d3 in operator() (this=0x7fc7b77c1d00) at /home/couchbase/jenkins/workspace/couchbase-server-unix/server_build/tlm/deps/folly.exploded/include/folly/Function.h:416
#16 operator() (__closure=0x7fc7b77c1cf0) at /home/couchbase/jenkins/workspace/couchbase-server-unix/server_build/tlm/deps/folly.exploded/include/folly/executors/thread_factory/PriorityThreadFactory.h:54
#17 folly::detail::function::FunctionTraits<void ()>::callBig<folly::PriorityThreadFactory::newThread(folly::Function<void ()>&&)::{lambda()#1}>(folly::detail::function::Data&) (p=...)
    at /home/couchbase/jenkins/workspace/couchbase-server-unix/server_build/tlm/deps/folly.exploded/include/folly/Function.h:401
#18 0x00007fc7b97c1dcf in std::execute_native_thread_routine (__p=0x7fc7a8cee3d0) at /tmp/deploy/gcc-7.3.0/libstdc++-v3/src/c++11/thread.cc:83
#19 0x00007fc7b8fdadd5 in __nptl_deallocate_tsd () from /lib64/libpthread.so.0
#20 0x00007fc77a7fc700 in ?? ()
#21 0x39408e088ebba549 in ?? ()
#22 0x39410b0fb141a549 in ?? ()
#23 0x0000000000000000 in ?? ()

Thread 23 (LWP 99162):
#0  0x00007fc7b8fded12 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fc7baaade51 in background_thread_sleep (tsdn=<optimized out>, interval=10000000000, info=<optimized out>) at src/background_thread.c:255
#2  background_work_sleep_once (ind=<optimized out>, info=<optimized out>, tsdn=<optimized out>) at src/background_thread.c:307
#3  background_work (ind=<optimized out>, tsd=0x7fc77b7e5a60) at src/background_thread.c:497
#4  background_thread_entry (ind_arg=<optimized out>) at src/background_thread.c:522
#5  0x00007fc7b8fdadd5 in __nptl_deallocate_tsd () from /lib64/libpthread.so.0
#6  0x00007fc77b7fe700 in ?? ()
#7  0x39408c084ebba549 in ?? ()
#8  0x39410b0fb141a549 in ?? ()
#9  0x0000000000000000 in ?? ()

Thread 22 (LWP 99161):
#0  0x00007fc7b8cfe1c9 in fcvt_r () from /lib64/libc.so.6
#1  0x00007fc77afe3f40 in ?? ()
#2  0x00007fc7bd308d37 in futexWaitPreIdle<std::atomic<unsigned int>, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1, 1000000000> > >, std::chrono::duration<long, std::ratio<1, 1000000000> > > (timeoutVariationFrac=0.5, stackToRetain=1024, idleTimeout=..., waitMask=4294967295, deadline=..., expected=2, fut=..., _ret=<synthetic pointer>)
    at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/MemoryIdler.h:194
#3  futexWaitUntil<std::atomic<unsigned int>, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1, 1000000000> > > > (timeoutVariationFrac=0.5, stackToRetain=1024, idleTimeout=..., 
    waitMask=4294967295, deadline=..., expected=2, fut=...) at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/MemoryIdler.h:151
#4  folly::SaturatingSemaphore<true, std::atomic>::tryWaitSlow<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > (this=0xcb724a7, this@entry=0x7fc7787d7048, deadline=..., opt=...)
    at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/SaturatingSemaphore.h:318
#5  0x00007fc7bd309266 in try_wait_until<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1, 1000000000> > > (opt=..., deadline=..., this=<optimized out>)
    at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/SaturatingSemaphore.h:179
#6  folly::detail::LifoSemBase<folly::SaturatingSemaphore<true, std::atomic>, std::atomic>::try_wait_until<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > (this=this@entry=0x7fc780000a40, 
    deadline=...) at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/LifoSem.h:521
#7  0x00007fc7bd30c9c0 in try_wait_for<long, std::ratio<1, 1000> > (timeout=<synthetic pointer>, this=0x7fc780000a40)
    at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/LifoSem.h:498
#8  folly::UnboundedBlockingQueue<folly::CPUThreadPoolExecutor::CPUTask>::try_take_for (this=0x7fc780000a00, time=...)
    at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/executors/task_queue/UnboundedBlockingQueue.h:41
#9  0x00007fc7bd301657 in folly::CPUThreadPoolExecutor::threadRun (this=0x7fc7a8e23000, thread=...)
    at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/executors/CPUThreadPoolExecutor.cpp:243
#10 0x00007fc7bd31c2f9 in __invoke_impl<void, void (folly::ThreadPoolExecutor::*&)(std::shared_ptr<folly::ThreadPoolExecutor::Thread>), folly::ThreadPoolExecutor*&, std::shared_ptr<folly::ThreadPoolExecutor::Thread>&> (
    __t=<optimized out>, __f=<optimized out>) at /usr/local/include/c++/7.3.0/bits/invoke.h:73
#11 __invoke<void (folly::ThreadPoolExecutor::*&)(std::shared_ptr<folly::ThreadPoolExecutor::Thread>), folly::ThreadPoolExecutor*&, std::shared_ptr<folly::ThreadPoolExecutor::Thread>&> (__fn=<optimized out>)
    at /usr/local/include/c++/7.3.0/bits/invoke.h:95
#12 __call<void, 0, 1> (__args=<optimized out>, this=<optimized out>) at /usr/local/include/c++/7.3.0/functional:467
#13 operator()<> (this=<optimized out>) at /usr/local/include/c++/7.3.0/functional:551
#14 folly::detail::function::FunctionTraits<void ()>::callBig<std::_Bind<void (folly::ThreadPoolExecutor::*(folly::ThreadPoolExecutor*, std::shared_ptr<folly::ThreadPoolExecutor::Thread>))(std::shared_ptr<folly::ThreadPoolExecutor::Thread>)> >(folly::detail::function::Data&) (p=...) at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/Function.h:401
#15 0x00007fc7bd1980d3 in operator() (this=0x7fc7b77c1cb0) at /home/couchbase/jenkins/workspace/couchbase-server-unix/server_build/tlm/deps/folly.exploded/include/folly/Function.h:416
#16 operator() (__closure=0x7fc7b77c1ca0) at /home/couchbase/jenkins/workspace/couchbase-server-unix/server_build/tlm/deps/folly.exploded/include/folly/executors/thread_factory/PriorityThreadFactory.h:54
#17 folly::detail::function::FunctionTraits<void ()>::callBig<folly::PriorityThreadFactory::newThread(folly::Function<void ()>&&)::{lambda()#1}>(folly::detail::function::Data&) (p=...)
    at /home/couchbase/jenkins/workspace/couchbase-server-unix/server_build/tlm/deps/folly.exploded/include/folly/Function.h:401
#18 0x00007fc7b97c1dcf in std::execute_native_thread_routine (__p=0x7fc7b756ae10) at /tmp/deploy/gcc-7.3.0/libstdc++-v3/src/c++11/thread.cc:83
#19 0x00007fc7b8fdadd5 in __nptl_deallocate_tsd () from /lib64/libpthread.so.0
#20 0x00007fc77affd700 in ?? ()
#21 0x39408f086ebba549 in ?? ()
#22 0x39410b0fb141a549 in ?? ()
#23 0x0000000000000000 in ?? ()

Thread 21 (LWP 99160):
#0  0x00007fc7b8cfe1c9 in fcvt_r () from /lib64/libc.so.6
#1  0x00007fc77bfe5f40 in ?? ()
#2  0x00007fc7bd308d37 in futexWaitPreIdle<std::atomic<unsigned int>, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1, 1000000000> > >, std::chrono::duration<long, std::ratio<1, 1000000000> > > (timeoutVariationFrac=0.5, stackToRetain=1024, idleTimeout=..., waitMask=4294967295, deadline=..., expected=2, fut=..., _ret=<synthetic pointer>)
    at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/MemoryIdler.h:194
#3  futexWaitUntil<std::atomic<unsigned int>, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1, 1000000000> > > > (timeoutVariationFrac=0.5, stackToRetain=1024, idleTimeout=..., 
    waitMask=4294967295, deadline=..., expected=2, fut=...) at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/MemoryIdler.h:151
#4  folly::SaturatingSemaphore<true, std::atomic>::tryWaitSlow<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > (this=0x1a5c1b7f, this@entry=0x7fc7787d7060, deadline=..., opt=...)
    at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/SaturatingSemaphore.h:318
#5  0x00007fc7bd309266 in try_wait_until<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1, 1000000000> > > (opt=..., deadline=..., this=<optimized out>)
    at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/SaturatingSemaphore.h:179
#6  folly::detail::LifoSemBase<folly::SaturatingSemaphore<true, std::atomic>, std::atomic>::try_wait_until<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > (this=this@entry=0x7fc780000a40, 
    deadline=...) at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/LifoSem.h:521
#7  0x00007fc7bd30c9c0 in try_wait_for<long, std::ratio<1, 1000> > (timeout=<synthetic pointer>, this=0x7fc780000a40)
    at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/LifoSem.h:498
#8  folly::UnboundedBlockingQueue<folly::CPUThreadPoolExecutor::CPUTask>::try_take_for (this=0x7fc780000a00, time=...)
    at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/executors/task_queue/UnboundedBlockingQueue.h:41
#9  0x00007fc7bd301657 in folly::CPUThreadPoolExecutor::threadRun (this=0x7fc7a8e23000, thread=...)
    at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/executors/CPUThreadPoolExecutor.cpp:243
#10 0x00007fc7bd31c2f9 in __invoke_impl<void, void (folly::ThreadPoolExecutor::*&)(std::shared_ptr<folly::ThreadPoolExecutor::Thread>), folly::ThreadPoolExecutor*&, std::shared_ptr<folly::ThreadPoolExecutor::Thread>&> (
    __t=<optimized out>, __f=<optimized out>) at /usr/local/include/c++/7.3.0/bits/invoke.h:73
#11 __invoke<void (folly::ThreadPoolExecutor::*&)(std::shared_ptr<folly::ThreadPoolExecutor::Thread>), folly::ThreadPoolExecutor*&, std::shared_ptr<folly::ThreadPoolExecutor::Thread>&> (__fn=<optimized out>)
    at /usr/local/include/c++/7.3.0/bits/invoke.h:95
#12 __call<void, 0, 1> (__args=<optimized out>, this=<optimized out>) at /usr/local/include/c++/7.3.0/functional:467
#13 operator()<> (this=<optimized out>) at /usr/local/include/c++/7.3.0/functional:551
#14 folly::detail::function::FunctionTraits<void ()>::callBig<std::_Bind<void (folly::ThreadPoolExecutor::*(folly::ThreadPoolExecutor*, std::shared_ptr<folly::ThreadPoolExecutor::Thread>))(std::shared_ptr<folly::ThreadPoolExecutor::Thread>)> >(folly::detail::function::Data&) (p=...) at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/Function.h:401
#15 0x00007fc7bd1980d3 in operator() (this=0x7fc7b77c1c60) at /home/couchbase/jenkins/workspace/couchbase-server-unix/server_build/tlm/deps/folly.exploded/include/folly/Function.h:416
#16 operator() (__closure=0x7fc7b77c1c50) at /home/couchbase/jenkins/workspace/couchbase-server-unix/server_build/tlm/deps/folly.exploded/include/folly/executors/thread_factory/PriorityThreadFactory.h:54
#17 folly::detail::function::FunctionTraits<void ()>::callBig<folly::PriorityThreadFactory::newThread(folly::Function<void ()>&&)::{lambda()#1}>(folly::detail::function::Data&) (p=...)
    at /home/couchbase/jenkins/workspace/couchbase-server-unix/server_build/tlm/deps/folly.exploded/include/folly/Function.h:401
#18 0x00007fc7b97c1dcf in std::execute_native_thread_routine (__p=0x7fc7b756ad30) at /tmp/deploy/gcc-7.3.0/libstdc++-v3/src/c++11/thread.cc:83
#19 0x00007fc7b8fdadd5 in __nptl_deallocate_tsd () from /lib64/libpthread.so.0
#20 0x00007fc77bfff700 in ?? ()
#21 0x39408d082ebba549 in ?? ()
#22 0x39410b0fb141a549 in ?? ()
#23 0x0000000000000000 in ?? ()

Thread 20 (LWP 99159):
#0  0x00007fc7b8cfe1c9 in fcvt_r () from /lib64/libc.so.6
#1  0x00007fc7a89e5f40 in ?? ()
#2  0x00007fc7bd308d37 in futexWaitPreIdle<std::atomic<unsigned int>, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1, 1000000000> > >, std::chrono::duration<long, std::ratio<1, 1000000000> > > (timeoutVariationFrac=0.5, stackToRetain=1024, idleTimeout=..., waitMask=4294967295, deadline=..., expected=2, fut=..., _ret=<synthetic pointer>)
    at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/MemoryIdler.h:194
#3  futexWaitUntil<std::atomic<unsigned int>, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1, 1000000000> > > > (timeoutVariationFrac=0.5, stackToRetain=1024, idleTimeout=..., 
    waitMask=4294967295, deadline=..., expected=2, fut=...) at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/detail/MemoryIdler.h:151
#4  folly::SaturatingSemaphore<true, std::atomic>::tryWaitSlow<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > (this=0x322387b9, this@entry=0x7fc7787d7030, deadline=..., opt=...)
    at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/SaturatingSemaphore.h:318
#5  0x00007fc7bd309266 in try_wait_until<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1, 1000000000> > > (opt=..., deadline=..., this=<optimized out>)
    at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/SaturatingSemaphore.h:179
#6  folly::detail::LifoSemBase<folly::SaturatingSemaphore<true, std::atomic>, std::atomic>::try_wait_until<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > (this=this@entry=0x7fc780000a40, 
    deadline=...) at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/LifoSem.h:521
#7  0x00007fc7bd30c9c0 in try_wait_for<long, std::ratio<1, 1000> > (timeout=<synthetic pointer>, this=0x7fc780000a40)
    at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/synchronization/LifoSem.h:498
#8  folly::UnboundedBlockingQueue<folly::CPUThreadPoolExecutor::CPUTask>::try_take_for (this=0x7fc780000a00, time=...)
    at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/executors/task_queue/UnboundedBlockingQueue.h:41
#9  0x00007fc7bd301657 in folly::CPUThreadPoolExecutor::threadRun (this=0x7fc7a8e23000, thread=...)
    at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/executors/CPUThreadPoolExecutor.cpp:243
#10 0x00007fc7bd31c2f9 in __invoke_impl<void, void (folly::ThreadPoolExecutor::*&)(std::shared_ptr<folly::ThreadPoolExecutor::Thread>), folly::ThreadPoolExecutor*&, std::shared_ptr<folly::ThreadPoolExecutor::Thread>&> (
    __t=<optimized out>, __f=<optimized out>) at /usr/local/include/c++/7.3.0/bits/invoke.h:73
#11 __invoke<void (folly::ThreadPoolExecutor::*&)(std::shared_ptr<folly::ThreadPoolExecutor::Thread>), folly::ThreadPoolExecutor*&, std::shared_ptr<folly::ThreadPoolExecutor::Thread>&> (__fn=<optimized out>)
    at /usr/local/include/c++/7.3.0/bits/invoke.h:95
#12 __call<void, 0, 1> (__args=<optimized out>, this=<optimized out>) at /usr/local/include/c++/7.3.0/functional:467
#13 operator()<> (this=<optimized out>) at /usr/local/include/c++/7.3.0/functional:551
#14 folly::detail::function::FunctionTraits<void ()>::callBig<std::_Bind<void (folly::ThreadPoolExecutor::*(folly::ThreadPoolExecutor*, std::shared_ptr<folly::ThreadPoolExecutor::Thread>))(std::shared_ptr<folly::ThreadPoolExecutor::Thread>)> >(folly::detail::function::Data&) (p=...) at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/Function.h:401
#15 0x00007fc7bd1980d3 in operator() (this=0x7fc7b77c1c10) at /home/couchbase/jenkins/workspace/couchbase-server-unix/server_build/tlm/deps/folly.exploded/include/folly/Function.h:416
#16 operator() (__closure=0x7fc7b77c1c00) at /home/couchbase/jenkins/workspace/couchbase-server-unix/server_build/tlm/deps/folly.exploded/include/folly/executors/thread_factory/PriorityThreadFactory.h:54
#17 folly::detail::function::FunctionTraits<void ()>::callBig<folly::PriorityThreadFactory::newThread(folly::Function<void ()>&&)::{lambda()#1}>(folly::detail::function::Data&) (p=...)
    at /home/couchbase/jenkins/workspace/couchbase-server-unix/server_build/tlm/deps/folly.exploded/include/folly/Function.h:401
#18 0x00007fc7b97c1dcf in std::execute_native_thread_routine (__p=0x7fc7b756ac50) at /tmp/deploy/gcc-7.3.0/libstdc++-v3/src/c++11/thread.cc:83
#19 0x00007fc7b8fdadd5 in __nptl_deallocate_tsd () from /lib64/libpthread.so.0
#20 0x00007fc7a89ff700 in ?? ()
#21 0x39412bc82ebba549 in ?? ()
#22 0x39410b0fb141a549 in ?? ()
#23 0x0000000000000000 in ?? ()

Thread 19 (LWP 98964):
#0  0x00007fc7b8fde965 in _L_lock_135 () from /lib64/libpthread.so.0
#1  0x00007fc7b8fde8ee in pthread_cond_destroy@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#2  0x0000000000000000 in ?? ()

Thread 18 (LWP 98963):
#0  0x00007fc7b8fde965 in _L_lock_135 () from /lib64/libpthread.so.0
#1  0x00007fc7b8fde8ee in pthread_cond_destroy@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#2  0x0000000000000000 in ?? ()

Thread 17 (LWP 98962):
#0  0x00007fc7b8fde965 in _L_lock_135 () from /lib64/libpthread.so.0
#1  0x00007fc7b8fde8ee in pthread_cond_destroy@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#2  0x0000000000000000 in ?? ()

Thread 16 (LWP 98961):
#0  0x00007fc7b8fde965 in _L_lock_135 () from /lib64/libpthread.so.0
#1  0x00007fc7b8fde8ee in pthread_cond_destroy@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#2  0x0000000000000000 in ?? ()

Thread 15 (LWP 98960):
#0  0x00007fc7b8d04483 in __open_by_handle_at_nocancel () from /lib64/libc.so.6
#1  0x0000000000000000 in ?? ()

Thread 14 (LWP 98959):
#0  0x00007fc7b8d04483 in __open_by_handle_at_nocancel () from /lib64/libc.so.6
#1  0x0000000000000000 in ?? ()

Thread 13 (LWP 98958):
#0  0x00007fc7b8d04483 in __open_by_handle_at_nocancel () from /lib64/libc.so.6
#1  0x0000000000000000 in ?? ()

Thread 12 (LWP 98957):
#0  0x00007fc7b8d04483 in __open_by_handle_at_nocancel () from /lib64/libc.so.6
#1  0x0000000000000000 in ?? ()

Thread 11 (LWP 98956):
#0  0x00007fc7b8cf920d in __statvfs_getflags () from /lib64/libc.so.6
#1  0x0000000000000000 in ?? ()

Thread 10 (LWP 98955):
#0  0x00007fc7b8fde965 in _L_lock_135 () from /lib64/libpthread.so.0
#1  0x00007fc7b8fde8ee in pthread_cond_destroy@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#2  0x0000000000000000 in ?? ()

Thread 9 (LWP 98954):
#0  0x00007fc7b8fde965 in _L_lock_135 () from /lib64/libpthread.so.0
#1  0x00007fc7b8fde8ee in pthread_cond_destroy@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#2  0x0000000000000000 in ?? ()

Thread 8 (LWP 98953):
#0  0x00007fc7b8fded12 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00000000004ef6a6 in __gthread_cond_timedwait (__abs_timeout=0x7fc7b52611f0, __mutex=<optimized out>, __cond=0x7fc7b766a8f8) at /usr/local/include/c++/7.3.0/x86_64-pc-linux-gnu/bits/gthr-default.h:871
#2  __wait_until_impl<std::chrono::duration<long, std::ratio<1, 1000000000> > > (__atime=..., __lock=..., this=0x7fc7b766a8f8) at /usr/local/include/c++/7.3.0/condition_variable:166
#3  wait_until<std::chrono::duration<long, std::ratio<1, 1000000000> > > (__atime=..., __lock=..., this=0x7fc7b766a8f8) at /usr/local/include/c++/7.3.0/condition_variable:106
#4  wait_for<long, std::ratio<1> > (__rtime=..., __lock=..., this=0x7fc7b766a8f8) at /usr/local/include/c++/7.3.0/condition_variable:138
#5  AuditImpl::consume_events (this=0x7fc7b766a500) at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/auditd/src/audit.cc:414
#6  0x00007fc7bb79d077 in run (this=0x7fc7b84472f0) at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/cb_pthreads.cc:58
#7  platform_thread_wrap (arg=0x7fc7b84472f0) at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/cb_pthreads.cc:71
#8  0x00007fc7b8fdadd5 in __nptl_deallocate_tsd () from /lib64/libpthread.so.0
#9  0x00007fc7b527a700 in ?? ()
#10 0x394110b8cebba549 in ?? ()
#11 0x39410b0fb141a549 in ?? ()
#12 0x0000000000000000 in ?? ()

Thread 7 (LWP 98945):
#0  0x00007fc7b8fded12 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x0000000000491280 in __gthread_cond_timedwait (__abs_timeout=0x7fc7b5a621d0, __mutex=<optimized out>, __cond=0x7fc7b84280f8) at /usr/local/include/c++/7.3.0/x86_64-pc-linux-gnu/bits/gthr-default.h:871
#2  __wait_until_impl<std::chrono::duration<long, std::ratio<1, 1000000000> > > (__atime=..., __lock=<synthetic pointer>, this=0x7fc7b84280f8) at /usr/local/include/c++/7.3.0/condition_variable:166
#3  wait_until<std::chrono::duration<long, std::ratio<1, 1000000000> > > (__atime=..., __lock=<synthetic pointer>, this=0x7fc7b84280f8) at /usr/local/include/c++/7.3.0/condition_variable:106
#4  wait_for<long, std::ratio<1, 1000000000> > (__rtime=<synthetic pointer>, __lock=<synthetic pointer>, this=0x7fc7b84280f8) at /usr/local/include/c++/7.3.0/condition_variable:138
#5  ExternalAuthManagerThread::run (this=0x7fc7b8428000) at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/daemon/external_auth_manager_thread.cc:229
#6  0x00007fc7bb7a7e5f in Couchbase::Thread::thread_entry (this=0x7fc7b8428000) at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/thread.cc:45
#7  0x00007fc7bb79d077 in run (this=0x7fc7b8447350) at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/cb_pthreads.cc:58
#8  platform_thread_wrap (arg=0x7fc7b8447350) at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/src/cb_pthreads.cc:71
#9  0x00007fc7b8fdadd5 in __nptl_deallocate_tsd () from /lib64/libpthread.so.0
#10 0x00007fc7b5a7b700 in ?? ()
#11 0x394111b8aebba549 in ?? ()
#12 0x39410b0fb141a549 in ?? ()
#13 0x0000000000000000 in ?? ()

Thread 6 (LWP 98944):
#0  0x00007fc7b8cf920d in __statvfs_getflags () from /lib64/libc.so.6
#1  0x0000000000000000 in ?? ()

Thread 5 (LWP 98943):
#0  0x00007fc7b8fded12 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fc7bc4d4f8a in __gthread_cond_timedwait (__abs_timeout=0x7fc7b6a641f0, __mutex=<optimized out>, __cond=<optimized out>) at /usr/local/include/c++/7.3.0/x86_64-pc-linux-gnu/bits/gthr-default.h:871
#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
#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
#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
#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
#6  operator() (__closure=0x7fc7b7655908) at /home/couchbase/jenkins/workspace/couchbase-server-unix/third_party/spdlog/include/spdlog/details/periodic_worker.h:38
#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
#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
#9  _M_invoke<0> (this=0x7fc7b7655908) at /usr/local/include/c++/7.3.0/thread:234
#10 operator() (this=0x7fc7b7655908) at /usr/local/include/c++/7.3.0/thread:243
#11 _ZNSt6thread11_State_implINS_8_InvokerISt5tupleIJZN6spdlog7details15periodic_workerC4ERKSt8functionIFvvEENSt6chrono8durationIlSt5ratioILl1ELl1EEEEEUlvE_EEEEE6_M_runEv (this=0x7fc7b7655900) at /usr/local/include/c++/7.3.0/thread:186
#12 0x00007fc7b97c1dcf in std::execute_native_thread_routine (__p=0x7fc7b7655900) at /tmp/deploy/gcc-7.3.0/libstdc++-v3/src/c++11/thread.cc:83
#13 0x00007fc7b8fdadd5 in __nptl_deallocate_tsd () from /lib64/libpthread.so.0
#14 0x00007fc7b6a7d700 in ?? ()
#15 0x394117b86ebba549 in ?? ()
#16 0x39410b0fb141a549 in ?? ()
#17 0x0000000000000000 in ?? ()

Thread 4 (LWP 98942):
#0  0x00007fc7b8fded12 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fc7bc4d58cd in __gthread_cond_timedwait (__abs_timeout=0x7fc7b7264fa0, __mutex=<optimized out>, __cond=0x7fc7b8410538) at /usr/local/include/c++/7.3.0/x86_64-pc-linux-gnu/bits/gthr-default.h:871
#2  __wait_until_impl<std::chrono::duration<long, std::ratio<1, 1000000000> > > (__atime=..., __lock=..., this=0x7fc7b8410538) at /usr/local/include/c++/7.3.0/condition_variable:166
#3  wait_until<std::chrono::duration<long, std::ratio<1, 1000000000> > > (__atime=..., __lock=..., this=0x7fc7b8410538) at /usr/local/include/c++/7.3.0/condition_variable:106
#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=0x7fc7b8410538) at /usr/local/include/c++/7.3.0/condition_variable:129
#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=0x7fc7b8410538) at /usr/local/include/c++/7.3.0/condition_variable:145
#6  dequeue_for (wait_duration=..., popped_item=..., this=0x7fc7b8410510) at /home/couchbase/jenkins/workspace/couchbase-server-unix/third_party/spdlog/include/spdlog/details/mpmc_blocking_q.h:61
#7  spdlog::details::thread_pool::process_next_msg_ (this=this@entry=0x7fc7b8410510) at /home/couchbase/jenkins/workspace/couchbase-server-unix/third_party/spdlog/include/spdlog/details/thread_pool.h:193
#8  0x00007fc7bc4d5e20 in spdlog::details::thread_pool::worker_loop_ (this=0x7fc7b8410510) at /home/couchbase/jenkins/workspace/couchbase-server-unix/third_party/spdlog/include/spdlog/details/thread_pool.h:184
#9  0x00007fc7b97c1dcf in std::execute_native_thread_routine (__p=0x7fc7b84459c0) at /tmp/deploy/gcc-7.3.0/libstdc++-v3/src/c++11/thread.cc:83
#10 0x00007fc7b8fdadd5 in __nptl_deallocate_tsd () from /lib64/libpthread.so.0
#11 0x00007fc7b727e700 in ?? ()
#12 0x394114b84ebba549 in ?? ()
#13 0x39410b0fb141a549 in ?? ()
#14 0x0000000000000000 in ?? ()

Thread 3 (LWP 98940):
#0  0x00007fc7b8fded12 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fc7baaae5a7 in background_thread_sleep (tsdn=<optimized out>, interval=10000000000, info=<optimized out>) at src/background_thread.c:255
#2  background_work_sleep_once (ind=0, info=<optimized out>, tsdn=<optimized out>) at src/background_thread.c:307
#3  background_thread0_work (tsd=0x7fc7b7fe6a60) at src/background_thread.c:452
#4  background_work (ind=<optimized out>, tsd=0x7fc7b7fe6a60) at src/background_thread.c:490
#5  background_thread_entry (ind_arg=<optimized out>) at src/background_thread.c:522
#6  0x00007fc7b8fdadd5 in __nptl_deallocate_tsd () from /lib64/libpthread.so.0
#7  0x00007fc7b7fff700 in ?? ()
#8  0x394115082ebba549 in ?? ()
#9  0x39410b0fb141a549 in ?? ()
#10 0x0000000000000000 in ?? ()

Thread 2 (LWP 98939):
#0  0x00007fc7b8d04483 in __open_by_handle_at_nocancel () from /lib64/libc.so.6
#1  0x0000000000000000 in ?? ()

Thread 1 (LWP 99170):
#0  load (__m=std::memory_order_relaxed, this=0x7fc77835859000) at /usr/local/include/c++/7.3.0/bits/atomic_base.h:396
#1  load (this=0x7fc77835859000) at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/include/platform/non_negative_counter.h:99
#2  fetch_sub (arg=34186498402484481, this=0x7fc77835859000) at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/include/platform/non_negative_counter.h:148
#3  operator-= (rhs=34186498402484481, this=<optimized out>) at /home/couchbase/jenkins/workspace/couchbase-server-unix/platform/include/platform/non_negative_counter.h:190
#4  deallocate (n=34186498402484481, p=<optimized out>, this=<optimized out>) at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/utilities/memory_tracking_allocator.h:108
#5  deallocate (__n=34186498402484481, __p=<optimized out>, __a=...) at /usr/local/include/c++/7.3.0/bits/alloc_traits.h:328
#6  _M_destroy (__size=34186498402484480, this=0x7fc741550d07) at /usr/local/include/c++/7.3.0/bits/basic_string.h:226
#7  _M_dispose (this=0x7fc741550d07) at /usr/local/include/c++/7.3.0/bits/basic_string.h:221
#8  ~basic_string (this=0x7fc741550d07, __in_chrg=<optimized out>) at /usr/local/include/c++/7.3.0/bits/basic_string.h:647
#9  ~StoredDocKeyT (this=<optimized out>, __in_chrg=<optimized out>) at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/engines/ep/src/storeddockey.h:51
#10 ~pair (this=<optimized out>, __in_chrg=<optimized out>) at /usr/local/include/c++/7.3.0/bits/stl_pair.h:198
#11 _S_destroy<MemoryTrackingAllocator<std::pair<StoredDocKeyT<MemoryTrackingAllocator> const, index_entry> >, std::pair<StoredDocKeyT<MemoryTrackingAllocator> const, index_entry> > (__p=<optimized out>)
    at /usr/local/include/c++/7.3.0/bits/alloc_traits.h:261
#12 destroy<std::pair<StoredDocKeyT<MemoryTrackingAllocator> const, index_entry> > (__a=<synthetic pointer>, __p=<optimized out>) at /usr/local/include/c++/7.3.0/bits/alloc_traits.h:356
#13 _M_deallocate_node (__n=0x7fc741550cff, this=0x7fc778697ce0) at /usr/local/include/c++/7.3.0/bits/hashtable_policy.h:2084
#14 _M_deallocate_nodes (__n=<optimized out>, this=0x7fc778697ce0) at /usr/local/include/c++/7.3.0/bits/hashtable_policy.h:2097
#15 clear (this=0x7fc778697ce0) at /usr/local/include/c++/7.3.0/bits/hashtable.h:2029
#16 std::_Hashtable<StoredDocKeyT<MemoryTrackingAllocator>, std::pair<StoredDocKeyT<MemoryTrackingAllocator> const, index_entry>, MemoryTrackingAllocator<std::pair<StoredDocKeyT<MemoryTrackingAllocator> const, index_entry> >, std::__detail::_Select1st, std::equal_to<void>, std::hash<StoredDocKeyT<MemoryTrackingAllocator> >, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<true, false, true> >::~_Hashtable (this=0x7fc778697ce0, __in_chrg=<optimized out>) at /usr/local/include/c++/7.3.0/bits/hashtable.h:1355
#17 0x00007fc7bd0a9b1a in ~unordered_map (this=0x7fc778697ce0, __in_chrg=<optimized out>) at /usr/local/include/c++/7.3.0/bits/unordered_map.h:101
#18 Checkpoint::~Checkpoint (this=0x7fc778697b80, __in_chrg=<optimized out>) at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/engines/ep/src/checkpoint.cc:217
#19 0x00007fc7bd0b2fd8 in CheckpointManager::removeClosedUnrefCheckpoints (this=<optimized out>, vbucket=..., newOpenCheckpointCreated=newOpenCheckpointCreated@entry=@0x7fc770fdfbd5: false, limit=limit@entry=18446744073709551615)
    at /usr/local/include/c++/7.3.0/bits/unique_ptr.h:78
#20 0x00007fc7bd0bd382 in CheckpointVisitor::visitBucket (this=0x7fc7b0130100, vb=...) at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/engines/ep/src/checkpoint_visitor.cc:40
#21 0x00007fc7bd1bafbb in VBCBAdaptor::run (this=0x7fc7785b1f10) at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/engines/ep/src/kv_bucket.cc:2386
#22 0x00007fc7bd19fc13 in GlobalTask::execute (this=0x7fc7785b1f10) at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/engines/ep/src/globaltask.cc:74
#23 0x00007fc7bd199c92 in operator() (__closure=0x7fc770fe00c0) at /home/couchbase/jenkins/workspace/couchbase-server-unix/kv_engine/engines/ep/src/folly_executorpool.cc:167
#24 folly::detail::function::FunctionTraits<void ()>::callSmall<FollyExecutorPool::TaskProxy::scheduleViaCPUPool()::{lambda()#1}>(folly::detail::function::Data&) (p=...)
    at /home/couchbase/jenkins/workspace/couchbase-server-unix/server_build/tlm/deps/folly.exploded/include/folly/Function.h:387
#25 0x00007fc7bd3191d6 in operator() (this=0x7fc770fe00c0) at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/Function.h:416
#26 folly::ThreadPoolExecutor::runTask(std::shared_ptr<folly::ThreadPoolExecutor::Thread> const&, folly::ThreadPoolExecutor::Task&&) (this=this@entry=0x7fc7a8e25400, thread=..., 
    task=task@entry=<unknown type in /usr/lib/debug/opt/couchbase/lib/libep.so.debug, CU 0x3084702, DIE 0x30caaf3>)
    at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/executors/ThreadPoolExecutor.cpp:98
#27 0x00007fc7bd3016ca in folly::CPUThreadPoolExecutor::threadRun (this=0x7fc7a8e25400, thread=...)
    at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/executors/CPUThreadPoolExecutor.cpp:265
#28 0x00007fc7bd31c2f9 in __invoke_impl<void, void (folly::ThreadPoolExecutor::*&)(std::shared_ptr<folly::ThreadPoolExecutor::Thread>), folly::ThreadPoolExecutor*&, std::shared_ptr<folly::ThreadPoolExecutor::Thread>&> (
    __t=<optimized out>, __f=<optimized out>) at /usr/local/include/c++/7.3.0/bits/invoke.h:73
#29 __invoke<void (folly::ThreadPoolExecutor::*&)(std::shared_ptr<folly::ThreadPoolExecutor::Thread>), folly::ThreadPoolExecutor*&, std::shared_ptr<folly::ThreadPoolExecutor::Thread>&> (__fn=<optimized out>)
    at /usr/local/include/c++/7.3.0/bits/invoke.h:95
#30 __call<void, 0, 1> (__args=<optimized out>, this=<optimized out>) at /usr/local/include/c++/7.3.0/functional:467
#31 operator()<> (this=<optimized out>) at /usr/local/include/c++/7.3.0/functional:551
#32 folly::detail::function::FunctionTraits<void ()>::callBig<std::_Bind<void (folly::ThreadPoolExecutor::*(folly::ThreadPoolExecutor*, std::shared_ptr<folly::ThreadPoolExecutor::Thread>))(std::shared_ptr<folly::ThreadPoolExecutor::Thread>)> >(folly::detail::function::Data&) (p=...) at /home/couchbase/jenkins/workspace/cbdeps-platform-build-old/deps/packages/build/folly/folly-prefix/src/folly/folly/Function.h:401
#33 0x00007fc7bd1980d3 in operator() (this=0x7fc7b77c24d0) at /home/couchbase/jenkins/workspace/couchbase-server-unix/server_build/tlm/deps/folly.exploded/include/folly/Function.h:416
#34 operator() (__closure=0x7fc7b77c24c0) at /home/couchbase/jenkins/workspace/couchbase-server-unix/server_build/tlm/deps/folly.exploded/include/folly/executors/thread_factory/PriorityThreadFactory.h:54
#35 folly::detail::function::FunctionTraits<void ()>::callBig<folly::PriorityThreadFactory::newThread(folly::Function<void ()>&&)::{lambda()#1}>(folly::detail::function::Data&) (p=...)
    at /home/couchbase/jenkins/workspace/couchbase-server-unix/server_build/tlm/deps/folly.exploded/include/folly/Function.h:401
#36 0x00007fc7b97c1dcf in std::execute_native_thread_routine (__p=0x7fc7a8cee6e0) at /tmp/deploy/gcc-7.3.0/libstdc++-v3/src/c++11/thread.cc:83
#37 0x00007fc7b8fdadd5 in __nptl_deallocate_tsd () from /lib64/libpthread.so.0
#38 0x00007fc770ff9700 in ?? ()
#39 0x39409b08eebba549 in ?? ()
#40 0x39410b0fb141a549 in ?? ()
#41 0x0000000000000000 in ?? ()
No core file now.