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 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: . Attaching to process 44312 Reading symbols from /opt/couchbase/bin/memcached...Reading symbols from /opt/couchbase/bin/memcached...(no debugging symbols found)...done. (no debugging symbols found)...done. Reading symbols from /opt/couchbase/bin/../lib/libnuma.so.1...Reading symbols from /opt/couchbase/bin/../lib/libnuma.so.1...(no debugging symbols found)...done. (no debugging symbols found)...done. Loaded symbols for /opt/couchbase/bin/../lib/libnuma.so.1 Reading symbols from /opt/couchbase/bin/../lib/liburing.so.1...Reading symbols from /opt/couchbase/bin/../lib/liburing.so.1...(no debugging symbols found)...done. (no debugging symbols found)...done. Loaded symbols for /opt/couchbase/bin/../lib/liburing.so.1 Reading symbols from /opt/couchbase/bin/../lib/libz.so.1...Reading symbols from /opt/couchbase/bin/../lib/libz.so.1...(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/libphosphor.so...Reading symbols from /opt/couchbase/bin/../lib/libphosphor.so...(no debugging symbols found)...done. (no debugging symbols found)...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 /lib64/libpthread.so.0...(no debugging symbols found)...done. [New LWP 3121] [New LWP 123227] [New LWP 123226] [New LWP 119588] [New LWP 103726] [New LWP 103725] [New LWP 103724] [New LWP 103723] [New LWP 103722] [New LWP 103721] [New LWP 103720] [New LWP 103719] [New LWP 103718] [New LWP 103717] [New LWP 103716] [New LWP 103715] [New LWP 103702] [New LWP 103701] [New LWP 103700] [New LWP 103699] [New LWP 103698] [New LWP 103697] [New LWP 103696] [New LWP 103695] [New LWP 44779] [New LWP 44376] [New LWP 44375] [New LWP 44374] [New LWP 44373] [New LWP 44368] [New LWP 44367] [New LWP 44366] [New LWP 44365] [New LWP 44364] [New LWP 44363] [New LWP 44362] [New LWP 44361] [New LWP 44360] [New LWP 44359] [New LWP 44358] [New LWP 44357] [New LWP 44356] [New LWP 44355] [New LWP 44354] [New LWP 44353] [New LWP 44352] [New LWP 44351] [New LWP 44327] [New LWP 44325] [New LWP 44321] [New LWP 44320] [New LWP 44319] [New LWP 44313] [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/librt.so.1...(no debugging symbols found)...done. Loaded symbols for /lib64/librt.so.1 Reading symbols from /opt/couchbase/bin/../lib/liblz4.so.1...Reading symbols from /opt/couchbase/bin/../lib/liblz4.so.1...(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/libsnappy.so.1...Reading symbols from /opt/couchbase/bin/../lib/libsnappy.so.1...(no debugging symbols found)...done. (no debugging symbols found)...done. Loaded symbols for /opt/couchbase/bin/../lib/libsnappy.so.1 Reading symbols from /opt/couchbase/bin/../lib/libjemalloc.so.2...Reading symbols from /opt/couchbase/bin/../lib/libjemalloc.so.2...(no debugging symbols found)...done. (no debugging symbols found)...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 /opt/couchbase/bin/../lib/libevent_core-2.1.so.7...(no debugging symbols found)...done. (no debugging symbols found)...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 /opt/couchbase/bin/../lib/libevent_extra-2.1.so.7...(no debugging symbols found)...done. (no debugging symbols found)...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 /opt/couchbase/bin/../lib/libevent_pthreads-2.1.so.7...(no debugging symbols found)...done. (no debugging symbols found)...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 /opt/couchbase/bin/../lib/libevent_openssl-2.1.so.7...(no debugging symbols found)...done. (no debugging symbols found)...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 /opt/couchbase/bin/../lib/libssl.so.1.1...(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 /opt/couchbase/bin/../lib/libcrypto.so.1.1...(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...(no debugging symbols found)...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...(no debugging symbols found)...done. Loaded symbols for /opt/couchbase/bin/../lib/libgcc_s.so.1 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 0x00007f7ebfeb2e63 in epoll_wait () from /lib64/libc.so.6 To enable execution of this file add add-auto-load-safe-path /opt/couchbase/lib/libstdc++.so.6.0.28-gdb.py line to your configuration file "/root/.gdbinit". To completely disable this security protection add set auto-load safe-path / line to your configuration file "/root/.gdbinit". For more information about this security protection see the "Auto-loading safe path" section in the GDB manual. E.g., run from the shell: info "(gdb)Auto-loading safe path" Thread 54 (Thread 0x7f7ebf3ff700 (LWP 44313)): #0 0x00007f7ec2575da2 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007f7ec1a7f5a7 in background_thread_entry () from /opt/couchbase/bin/../lib/libjemalloc.so.2 #2 0x00007f7ec2571e65 in start_thread () from /lib64/libpthread.so.0 #3 0x00007f7ebfeb288d in clone () from /lib64/libc.so.6 Thread 53 (Thread 0x7f7ebe2fe700 (LWP 44319)): #0 0x00007f7ec2575da2 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x0000000000b19cfa in spdlog::details::thread_pool::process_next_msg_() () #2 0x0000000000b1a048 in _ZNSt6thread11_State_implINS_8_InvokerISt5tupleIJZN6spdlog7details11thread_poolC4EmmSt8functionIFvvEEEUlvE_EEEEE6_M_runEv () #3 0x00007f7ec0769d40 in execute_native_thread_routine () from /opt/couchbase/bin/../lib/libstdc++.so.6 #4 0x00007f7ec2571e65 in start_thread () from /lib64/libpthread.so.0 #5 0x00007f7ebfeb288d in clone () from /lib64/libc.so.6 Thread 52 (Thread 0x7f7ebdafd700 (LWP 44320)): #0 0x00007f7ec2575da2 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x0000000000b19aba in _ZNSt6thread11_State_implINS_8_InvokerISt5tupleIJZN6spdlog7details15periodic_workerC4ERKSt8functionIFvvEENSt6chrono8durationIlSt5ratioILl1ELl1EEEEEUlvE_EEEEE6_M_runEv () #2 0x00007f7ec0769d40 in execute_native_thread_routine () from /opt/couchbase/bin/../lib/libstdc++.so.6 #3 0x00007f7ec2571e65 in start_thread () from /lib64/libpthread.so.0 #4 0x00007f7ebfeb288d in clone () from /lib64/libc.so.6 Thread 51 (Thread 0x7f7ebd2fc700 (LWP 44321)): #0 0x00007f7ebfea7bed in poll () from /lib64/libc.so.6 #1 0x00000000005a2cd1 in check_stdin_thread(void*) () #2 0x0000000000b4bdd9 in platform_thread_wrap(void*) () #3 0x00007f7ec2571e65 in start_thread () from /lib64/libpthread.so.0 #4 0x00007f7ebfeb288d in clone () from /lib64/libc.so.6 Thread 50 (Thread 0x7f7ebbaf9700 (LWP 44325)): #0 0x00007f7ec2575da2 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00000000005e88f6 in ExternalAuthManagerThread::run() () #2 0x0000000000b61493 in Couchbase::Thread::thread_entry() () #3 0x0000000000b4bdd9 in platform_thread_wrap(void*) () #4 0x00007f7ec2571e65 in start_thread () from /lib64/libpthread.so.0 #5 0x00007f7ebfeb288d in clone () from /lib64/libc.so.6 Thread 49 (Thread 0x7f7ebb2f8700 (LWP 44327)): #0 0x00007f7ec2575da2 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x0000000000672397 in AuditImpl::consume_events() () #2 0x0000000000b4bdd9 in platform_thread_wrap(void*) () #3 0x00007f7ec2571e65 in start_thread () from /lib64/libpthread.so.0 #4 0x00007f7ebfeb288d in clone () from /lib64/libc.so.6 Thread 48 (Thread 0x7f7eb3af9700 (LWP 44351)): #0 0x00007f7ec25759f5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x0000000000a9464b in worker_thread () #2 0x00007f7ec2571e65 in start_thread () from /lib64/libpthread.so.0 #3 0x00007f7ebfeb288d in clone () from /lib64/libc.so.6 Thread 47 (Thread 0x7f7ebc2fa700 (LWP 44352)): #0 0x00007f7ec25759f5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x0000000000a9464b in worker_thread () #2 0x00007f7ec2571e65 in start_thread () from /lib64/libpthread.so.0 #3 0x00007f7ebfeb288d in clone () from /lib64/libc.so.6 Thread 46 (Thread 0x7f7ebcafb700 (LWP 44353)): #0 0x00007f7ebfea7bed in poll () from /lib64/libc.so.6 #1 0x0000000000a8b5b8 in master_thread () #2 0x00007f7ec2571e65 in start_thread () from /lib64/libpthread.so.0 #3 0x00007f7ebfeb288d in clone () from /lib64/libc.so.6 Thread 45 (Thread 0x7f7ebaaf7700 (LWP 44354)): #0 0x00007f7ebfeb2e63 in epoll_wait () from /lib64/libc.so.6 #1 0x00007f7ec18463c5 in epoll_dispatch () from /opt/couchbase/bin/../lib/libevent_core-2.1.so.7 #2 0x00007f7ec183d376 in event_base_loop () from /opt/couchbase/bin/../lib/libevent_core-2.1.so.7 #3 0x0000000000bc0097 in folly::EventBase::loopBody(int, bool) () #4 0x0000000000bc0566 in folly::EventBase::loop() () #5 0x0000000000bc1f26 in folly::EventBase::loopForever() () #6 0x00000000005a7ef9 in worker_libevent(void*) () #7 0x0000000000b4bdd9 in platform_thread_wrap(void*) () #8 0x00007f7ec2571e65 in start_thread () from /lib64/libpthread.so.0 #9 0x00007f7ebfeb288d in clone () from /lib64/libc.so.6 Thread 44 (Thread 0x7f7eba2f6700 (LWP 44355)): #0 0x00007f7ebfeb2e63 in epoll_wait () from /lib64/libc.so.6 #1 0x00007f7ec18463c5 in epoll_dispatch () from /opt/couchbase/bin/../lib/libevent_core-2.1.so.7 #2 0x00007f7ec183d376 in event_base_loop () from /opt/couchbase/bin/../lib/libevent_core-2.1.so.7 #3 0x0000000000bc0097 in folly::EventBase::loopBody(int, bool) () #4 0x0000000000bc0566 in folly::EventBase::loop() () #5 0x0000000000bc1f26 in folly::EventBase::loopForever() () #6 0x00000000005a7ef9 in worker_libevent(void*) () #7 0x0000000000b4bdd9 in platform_thread_wrap(void*) () #8 0x00007f7ec2571e65 in start_thread () from /lib64/libpthread.so.0 #9 0x00007f7ebfeb288d in clone () from /lib64/libc.so.6 Thread 43 (Thread 0x7f7eb9af5700 (LWP 44356)): #0 0x00007f7ebfeb2e63 in epoll_wait () from /lib64/libc.so.6 #1 0x00007f7ec18463c5 in epoll_dispatch () from /opt/couchbase/bin/../lib/libevent_core-2.1.so.7 #2 0x00007f7ec183d376 in event_base_loop () from /opt/couchbase/bin/../lib/libevent_core-2.1.so.7 #3 0x0000000000bc0097 in folly::EventBase::loopBody(int, bool) () #4 0x0000000000bc0566 in folly::EventBase::loop() () #5 0x0000000000bc1f26 in folly::EventBase::loopForever() () #6 0x00000000005a7ef9 in worker_libevent(void*) () #7 0x0000000000b4bdd9 in platform_thread_wrap(void*) () #8 0x00007f7ec2571e65 in start_thread () from /lib64/libpthread.so.0 #9 0x00007f7ebfeb288d in clone () from /lib64/libc.so.6 Thread 42 (Thread 0x7f7eb92f4700 (LWP 44357)): #0 0x00007f7ebfeb2e63 in epoll_wait () from /lib64/libc.so.6 #1 0x00007f7ec18463c5 in epoll_dispatch () from /opt/couchbase/bin/../lib/libevent_core-2.1.so.7 #2 0x00007f7ec183d376 in event_base_loop () from /opt/couchbase/bin/../lib/libevent_core-2.1.so.7 #3 0x0000000000bc0097 in folly::EventBase::loopBody(int, bool) () #4 0x0000000000bc0566 in folly::EventBase::loop() () #5 0x0000000000bc1f26 in folly::EventBase::loopForever() () #6 0x00000000005a7ef9 in worker_libevent(void*) () #7 0x0000000000b4bdd9 in platform_thread_wrap(void*) () #8 0x00007f7ec2571e65 in start_thread () from /lib64/libpthread.so.0 #9 0x00007f7ebfeb288d in clone () from /lib64/libc.so.6 Thread 41 (Thread 0x7f7eb8af3700 (LWP 44358)): #0 0x00007f7ebfeb2e63 in epoll_wait () from /lib64/libc.so.6 #1 0x00007f7ec18463c5 in epoll_dispatch () from /opt/couchbase/bin/../lib/libevent_core-2.1.so.7 #2 0x00007f7ec183d376 in event_base_loop () from /opt/couchbase/bin/../lib/libevent_core-2.1.so.7 #3 0x0000000000bc0097 in folly::EventBase::loopBody(int, bool) () #4 0x0000000000bc0566 in folly::EventBase::loop() () #5 0x0000000000bc1f26 in folly::EventBase::loopForever() () #6 0x00000000005a7ef9 in worker_libevent(void*) () #7 0x0000000000b4bdd9 in platform_thread_wrap(void*) () #8 0x00007f7ec2571e65 in start_thread () from /lib64/libpthread.so.0 #9 0x00007f7ebfeb288d in clone () from /lib64/libc.so.6 Thread 40 (Thread 0x7f7eb32f8700 (LWP 44359)): #0 0x00007f7ebfeb2e63 in epoll_wait () from /lib64/libc.so.6 #1 0x00007f7ec18463c5 in epoll_dispatch () from /opt/couchbase/bin/../lib/libevent_core-2.1.so.7 #2 0x00007f7ec183d376 in event_base_loop () from /opt/couchbase/bin/../lib/libevent_core-2.1.so.7 #3 0x0000000000bc0097 in folly::EventBase::loopBody(int, bool) () #4 0x0000000000bc0566 in folly::EventBase::loop() () #5 0x0000000000bc1f26 in folly::EventBase::loopForever() () #6 0x00000000005a7ef9 in worker_libevent(void*) () #7 0x0000000000b4bdd9 in platform_thread_wrap(void*) () #8 0x00007f7ec2571e65 in start_thread () from /lib64/libpthread.so.0 #9 0x00007f7ebfeb288d in clone () from /lib64/libc.so.6 Thread 39 (Thread 0x7f7eb2af7700 (LWP 44360)): #0 0x00007f7ebfeb2e63 in epoll_wait () from /lib64/libc.so.6 #1 0x00007f7ec18463c5 in epoll_dispatch () from /opt/couchbase/bin/../lib/libevent_core-2.1.so.7 #2 0x00007f7ec183d376 in event_base_loop () from /opt/couchbase/bin/../lib/libevent_core-2.1.so.7 #3 0x0000000000bc0097 in folly::EventBase::loopBody(int, bool) () #4 0x0000000000bc0566 in folly::EventBase::loop() () #5 0x0000000000bc1f26 in folly::EventBase::loopForever() () #6 0x00000000005a7ef9 in worker_libevent(void*) () #7 0x0000000000b4bdd9 in platform_thread_wrap(void*) () #8 0x00007f7ec2571e65 in start_thread () from /lib64/libpthread.so.0 #9 0x00007f7ebfeb288d in clone () from /lib64/libc.so.6 Thread 38 (Thread 0x7f7eb0ef6700 (LWP 44361)): #0 0x00007f7ebfeacba9 in syscall () from /lib64/libc.so.6 #1 0x0000000000b9648d in folly::detail::futexWaitImpl(std::atomic const*, unsigned int, std::chrono::time_point > > const*, std::chrono::time_point > > const*, unsigned int) () #2 0x0000000000ba055a in folly::detail::FutexResult folly::detail::futexWaitUntil, std::chrono::_V2::steady_clock, std::chrono::duration > >(std::atomic const*, unsigned int, std::chrono::time_point > > const&, unsigned int) () #3 0x0000000000ba63bd in bool folly::SaturatingSemaphore::tryWaitSlow > >(std::chrono::time_point > > const&, folly::WaitOptions const&) () #4 0x0000000000ba6a26 in bool folly::detail::LifoSemBase, std::atomic>::try_wait_until > >(std::chrono::time_point > > const&) () #5 0x0000000000baa180 in folly::UnboundedBlockingQueue::try_take_for(std::chrono::duration >) () #6 0x0000000000b9e6f7 in folly::CPUThreadPoolExecutor::threadRun(std::shared_ptr) () #7 0x0000000000bb9969 in void folly::detail::function::FunctionTraits::callBig))(std::shared_ptr)> >(folly::detail::function::Data&) () #8 0x0000000000a62724 in void folly::detail::function::FunctionTraits::callBig&&)::{lambda()#1}>(folly::detail::function::Data&) () #9 0x00007f7ec0769d40 in execute_native_thread_routine () from /opt/couchbase/bin/../lib/libstdc++.so.6 #10 0x00007f7ec2571e65 in start_thread () from /lib64/libpthread.so.0 #11 0x00007f7ebfeb288d in clone () from /lib64/libc.so.6 Thread 37 (Thread 0x7f7eabfff700 (LWP 44362)): #0 0x00007f7ebfeacba9 in syscall () from /lib64/libc.so.6 #1 0x0000000000b9648d in folly::detail::futexWaitImpl(std::atomic const*, unsigned int, std::chrono::time_point > > const*, std::chrono::time_point > > const*, unsigned int) () #2 0x0000000000ba055a in folly::detail::FutexResult folly::detail::futexWaitUntil, std::chrono::_V2::steady_clock, std::chrono::duration > >(std::atomic const*, unsigned int, std::chrono::time_point > > const&, unsigned int) () #3 0x0000000000ba63bd in bool folly::SaturatingSemaphore::tryWaitSlow > >(std::chrono::time_point > > const&, folly::WaitOptions const&) () #4 0x0000000000ba6a26 in bool folly::detail::LifoSemBase, std::atomic>::try_wait_until > >(std::chrono::time_point > > const&) () #5 0x0000000000baa180 in folly::UnboundedBlockingQueue::try_take_for(std::chrono::duration >) () #6 0x0000000000b9e6f7 in folly::CPUThreadPoolExecutor::threadRun(std::shared_ptr) () #7 0x0000000000bb9969 in void folly::detail::function::FunctionTraits::callBig))(std::shared_ptr)> >(folly::detail::function::Data&) () #8 0x0000000000a62724 in void folly::detail::function::FunctionTraits::callBig&&)::{lambda()#1}>(folly::detail::function::Data&) () #9 0x00007f7ec0769d40 in execute_native_thread_routine () from /opt/couchbase/bin/../lib/libstdc++.so.6 #10 0x00007f7ec2571e65 in start_thread () from /lib64/libpthread.so.0 #11 0x00007f7ebfeb288d in clone () from /lib64/libc.so.6 Thread 36 (Thread 0x7f7eab7fe700 (LWP 44363)): #0 0x00007f7ebfeacba9 in syscall () from /lib64/libc.so.6 #1 0x0000000000b9648d in folly::detail::futexWaitImpl(std::atomic const*, unsigned int, std::chrono::time_point > > const*, std::chrono::time_point > > const*, unsigned int) () #2 0x0000000000ba055a in folly::detail::FutexResult folly::detail::futexWaitUntil, std::chrono::_V2::steady_clock, std::chrono::duration > >(std::atomic const*, unsigned int, std::chrono::time_point > > const&, unsigned int) () #3 0x0000000000ba63bd in bool folly::SaturatingSemaphore::tryWaitSlow > >(std::chrono::time_point > > const&, folly::WaitOptions const&) () #4 0x0000000000ba6a26 in bool folly::detail::LifoSemBase, std::atomic>::try_wait_until > >(std::chrono::time_point > > const&) () #5 0x0000000000baa180 in folly::UnboundedBlockingQueue::try_take_for(std::chrono::duration >) () #6 0x0000000000b9e6f7 in folly::CPUThreadPoolExecutor::threadRun(std::shared_ptr) () #7 0x0000000000bb9969 in void folly::detail::function::FunctionTraits::callBig))(std::shared_ptr)> >(folly::detail::function::Data&) () #8 0x0000000000a62724 in void folly::detail::function::FunctionTraits::callBig&&)::{lambda()#1}>(folly::detail::function::Data&) () #9 0x00007f7ec0769d40 in execute_native_thread_routine () from /opt/couchbase/bin/../lib/libstdc++.so.6 #10 0x00007f7ec2571e65 in start_thread () from /lib64/libpthread.so.0 #11 0x00007f7ebfeb288d in clone () from /lib64/libc.so.6 Thread 35 (Thread 0x7f7ea97d8700 (LWP 44364)): #0 0x00007f7ebfeacba9 in syscall () from /lib64/libc.so.6 #1 0x0000000000b9648d in folly::detail::futexWaitImpl(std::atomic const*, unsigned int, std::chrono::time_point > > const*, std::chrono::time_point > > const*, unsigned int) () #2 0x0000000000ba055a in folly::detail::FutexResult folly::detail::futexWaitUntil, std::chrono::_V2::steady_clock, std::chrono::duration > >(std::atomic const*, unsigned int, std::chrono::time_point > > const&, unsigned int) () #3 0x0000000000ba63bd in bool folly::SaturatingSemaphore::tryWaitSlow > >(std::chrono::time_point > > const&, folly::WaitOptions const&) () #4 0x0000000000ba6a26 in bool folly::detail::LifoSemBase, std::atomic>::try_wait_until > >(std::chrono::time_point > > const&) () #5 0x0000000000baa180 in folly::UnboundedBlockingQueue::try_take_for(std::chrono::duration >) () #6 0x0000000000b9e6f7 in folly::CPUThreadPoolExecutor::threadRun(std::shared_ptr) () #7 0x0000000000bb9969 in void folly::detail::function::FunctionTraits::callBig))(std::shared_ptr)> >(folly::detail::function::Data&) () #8 0x0000000000a62724 in void folly::detail::function::FunctionTraits::callBig&&)::{lambda()#1}>(folly::detail::function::Data&) () #9 0x00007f7ec0769d40 in execute_native_thread_routine () from /opt/couchbase/bin/../lib/libstdc++.so.6 #10 0x00007f7ec2571e65 in start_thread () from /lib64/libpthread.so.0 #11 0x00007f7ebfeb288d in clone () from /lib64/libc.so.6 Thread 34 (Thread 0x7f7ea8fd7700 (LWP 44365)): #0 0x00007f7ebfeacba9 in syscall () from /lib64/libc.so.6 #1 0x0000000000b9648d in folly::detail::futexWaitImpl(std::atomic const*, unsigned int, std::chrono::time_point > > const*, std::chrono::time_point > > const*, unsigned int) () #2 0x0000000000ba055a in folly::detail::FutexResult folly::detail::futexWaitUntil, std::chrono::_V2::steady_clock, std::chrono::duration > >(std::atomic const*, unsigned int, std::chrono::time_point > > const&, unsigned int) () #3 0x0000000000ba63bd in bool folly::SaturatingSemaphore::tryWaitSlow > >(std::chrono::time_point > > const&, folly::WaitOptions const&) () #4 0x0000000000ba6a26 in bool folly::detail::LifoSemBase, std::atomic>::try_wait_until > >(std::chrono::time_point > > const&) () #5 0x0000000000baa180 in folly::UnboundedBlockingQueue::try_take_for(std::chrono::duration >) () #6 0x0000000000b9e6f7 in folly::CPUThreadPoolExecutor::threadRun(std::shared_ptr) () #7 0x0000000000bb9969 in void folly::detail::function::FunctionTraits::callBig))(std::shared_ptr)> >(folly::detail::function::Data&) () #8 0x0000000000a62724 in void folly::detail::function::FunctionTraits::callBig&&)::{lambda()#1}>(folly::detail::function::Data&) () #9 0x00007f7ec0769d40 in execute_native_thread_routine () from /opt/couchbase/bin/../lib/libstdc++.so.6 #10 0x00007f7ec2571e65 in start_thread () from /lib64/libpthread.so.0 #11 0x00007f7ebfeb288d in clone () from /lib64/libc.so.6 Thread 33 (Thread 0x7f7e9bfff700 (LWP 44366)): #0 0x00007f7ebfeacba9 in syscall () from /lib64/libc.so.6 #1 0x0000000000b9648d in folly::detail::futexWaitImpl(std::atomic const*, unsigned int, std::chrono::time_point > > const*, std::chrono::time_point > > const*, unsigned int) () #2 0x0000000000ba055a in folly::detail::FutexResult folly::detail::futexWaitUntil, std::chrono::_V2::steady_clock, std::chrono::duration > >(std::atomic const*, unsigned int, std::chrono::time_point > > const&, unsigned int) () #3 0x0000000000ba63bd in bool folly::SaturatingSemaphore::tryWaitSlow > >(std::chrono::time_point > > const&, folly::WaitOptions const&) () #4 0x0000000000ba6a26 in bool folly::detail::LifoSemBase, std::atomic>::try_wait_until > >(std::chrono::time_point > > const&) () #5 0x0000000000baa180 in folly::UnboundedBlockingQueue::try_take_for(std::chrono::duration >) () #6 0x0000000000b9e6f7 in folly::CPUThreadPoolExecutor::threadRun(std::shared_ptr) () #7 0x0000000000bb9969 in void folly::detail::function::FunctionTraits::callBig))(std::shared_ptr)> >(folly::detail::function::Data&) () #8 0x0000000000a62724 in void folly::detail::function::FunctionTraits::callBig&&)::{lambda()#1}>(folly::detail::function::Data&) () #9 0x00007f7ec0769d40 in execute_native_thread_routine () from /opt/couchbase/bin/../lib/libstdc++.so.6 #10 0x00007f7ec2571e65 in start_thread () from /lib64/libpthread.so.0 #11 0x00007f7ebfeb288d in clone () from /lib64/libc.so.6 Thread 32 (Thread 0x7f7e9b7fe700 (LWP 44367)): #0 0x00007f7ebfeacba9 in syscall () from /lib64/libc.so.6 #1 0x0000000000b9648d in folly::detail::futexWaitImpl(std::atomic const*, unsigned int, std::chrono::time_point > > const*, std::chrono::time_point > > const*, unsigned int) () #2 0x0000000000ba055a in folly::detail::FutexResult folly::detail::futexWaitUntil, std::chrono::_V2::steady_clock, std::chrono::duration > >(std::atomic const*, unsigned int, std::chrono::time_point > > const&, unsigned int) () #3 0x0000000000ba63bd in bool folly::SaturatingSemaphore::tryWaitSlow > >(std::chrono::time_point > > const&, folly::WaitOptions const&) () #4 0x0000000000ba6a26 in bool folly::detail::LifoSemBase, std::atomic>::try_wait_until > >(std::chrono::time_point > > const&) () #5 0x0000000000baa180 in folly::UnboundedBlockingQueue::try_take_for(std::chrono::duration >) () #6 0x0000000000b9e6f7 in folly::CPUThreadPoolExecutor::threadRun(std::shared_ptr) () #7 0x0000000000bb9969 in void folly::detail::function::FunctionTraits::callBig))(std::shared_ptr)> >(folly::detail::function::Data&) () #8 0x0000000000a62724 in void folly::detail::function::FunctionTraits::callBig&&)::{lambda()#1}>(folly::detail::function::Data&) () #9 0x00007f7ec0769d40 in execute_native_thread_routine () from /opt/couchbase/bin/../lib/libstdc++.so.6 #10 0x00007f7ec2571e65 in start_thread () from /lib64/libpthread.so.0 #11 0x00007f7ebfeb288d in clone () from /lib64/libc.so.6 Thread 31 (Thread 0x7f7e9affd700 (LWP 44368)): #0 0x00007f7ebfeacba9 in syscall () from /lib64/libc.so.6 #1 0x0000000000b9648d in folly::detail::futexWaitImpl(std::atomic const*, unsigned int, std::chrono::time_point > > const*, std::chrono::time_point > > const*, unsigned int) () #2 0x0000000000ba055a in folly::detail::FutexResult folly::detail::futexWaitUntil, std::chrono::_V2::steady_clock, std::chrono::duration > >(std::atomic const*, unsigned int, std::chrono::time_point > > const&, unsigned int) () #3 0x0000000000ba63bd in bool folly::SaturatingSemaphore::tryWaitSlow > >(std::chrono::time_point > > const&, folly::WaitOptions const&) () #4 0x0000000000ba6a26 in bool folly::detail::LifoSemBase, std::atomic>::try_wait_until > >(std::chrono::time_point > > const&) () #5 0x0000000000baa180 in folly::UnboundedBlockingQueue::try_take_for(std::chrono::duration >) () #6 0x0000000000b9e6f7 in folly::CPUThreadPoolExecutor::threadRun(std::shared_ptr) () #7 0x0000000000bb9969 in void folly::detail::function::FunctionTraits::callBig))(std::shared_ptr)> >(folly::detail::function::Data&) () #8 0x0000000000a62724 in void folly::detail::function::FunctionTraits::callBig&&)::{lambda()#1}>(folly::detail::function::Data&) () #9 0x00007f7ec0769d40 in execute_native_thread_routine () from /opt/couchbase/bin/../lib/libstdc++.so.6 #10 0x00007f7ec2571e65 in start_thread () from /lib64/libpthread.so.0 #11 0x00007f7ebfeb288d in clone () from /lib64/libc.so.6 Thread 30 (Thread 0x7f7e77fff700 (LWP 44373)): #0 0x00007f7ebfeacba9 in syscall () from /lib64/libc.so.6 #1 0x0000000000b9648d in folly::detail::futexWaitImpl(std::atomic const*, unsigned int, std::chrono::time_point > > const*, std::chrono::time_point > > const*, unsigned int) () #2 0x0000000000ba055a in folly::detail::FutexResult folly::detail::futexWaitUntil, std::chrono::_V2::steady_clock, std::chrono::duration > >(std::atomic const*, unsigned int, std::chrono::time_point > > const&, unsigned int) () #3 0x0000000000ba63bd in bool folly::SaturatingSemaphore::tryWaitSlow > >(std::chrono::time_point > > const&, folly::WaitOptions const&) () #4 0x0000000000ba6a26 in bool folly::detail::LifoSemBase, std::atomic>::try_wait_until > >(std::chrono::time_point > > const&) () #5 0x0000000000baa180 in folly::UnboundedBlockingQueue::try_take_for(std::chrono::duration >) () #6 0x0000000000b9e6f7 in folly::CPUThreadPoolExecutor::threadRun(std::shared_ptr) () #7 0x0000000000bb9969 in void folly::detail::function::FunctionTraits::callBig))(std::shared_ptr)> >(folly::detail::function::Data&) () #8 0x0000000000a62724 in void folly::detail::function::FunctionTraits::callBig&&)::{lambda()#1}>(folly::detail::function::Data&) () #9 0x00007f7ec0769d40 in execute_native_thread_routine () from /opt/couchbase/bin/../lib/libstdc++.so.6 #10 0x00007f7ec2571e65 in start_thread () from /lib64/libpthread.so.0 #11 0x00007f7ebfeb288d in clone () from /lib64/libc.so.6 Thread 29 (Thread 0x7f7e777fe700 (LWP 44374)): #0 0x00007f7ec1a6be89 in je_mallocx () from /opt/couchbase/bin/../lib/libjemalloc.so.2 #1 0x00000000005b744f in cb_malloc () #2 0x0000000000b59359 in operator new(unsigned long) () #3 0x0000000000701ff4 in std::_Function_handler::_M_manager(std::_Any_data&, std::_Function_handler const&, std::_Manager_operation) () #4 0x00000000006fe0d6 in void std::__final_insertion_sort, __gnu_cxx::__ops::_Iter_comp_iter > >(std::_Deque_iterator, std::_Deque_iterator, __gnu_cxx::__ops::_Iter_comp_iter >) () #5 0x00000000006f3f18 in VBCBAdaptor::VBCBAdaptor(KVBucket*, TaskId, std::unique_ptr >, char const*, bool) () #6 0x00000000006f42af in KVBucket::visitAsync(std::unique_ptr >, char const*, TaskId, std::chrono::duration >) () #7 0x00000000006e1de2 in ItemPager::run() () #8 0x0000000000a658f2 in GlobalTask::execute() () #9 0x0000000000a62a95 in FollyExecutorPool::TaskProxy::scheduleViaCPUPool()::{lambda()#2}::operator()() const () #10 0x0000000000bb69b0 in folly::ThreadPoolExecutor::runTask(std::shared_ptr const&, folly::ThreadPoolExecutor::Task&&) () #11 0x0000000000b9e76a in folly::CPUThreadPoolExecutor::threadRun(std::shared_ptr) () #12 0x0000000000bb9969 in void folly::detail::function::FunctionTraits::callBig))(std::shared_ptr)> >(folly::detail::function::Data&) () #13 0x0000000000a62724 in void folly::detail::function::FunctionTraits::callBig&&)::{lambda()#1}>(folly::detail::function::Data&) () #14 0x00007f7ec0769d40 in execute_native_thread_routine () from /opt/couchbase/bin/../lib/libstdc++.so.6 #15 0x00007f7ec2571e65 in start_thread () from /lib64/libpthread.so.0 #16 0x00007f7ebfeb288d in clone () from /lib64/libc.so.6 Thread 28 (Thread 0x7f7e76ffd700 (LWP 44375)): #0 0x0000000000af741c in hdr_reset () #1 0x0000000000aecc2a in HdrHistogram::reset() () #2 0x0000000000826309 in ItemEviction::reset() () #3 0x00000000007010d5 in PagingVisitor::visitBucket(VBucket&) () #4 0x00000000006e722d in VBCBAdaptor::run() () #5 0x0000000000a658f2 in GlobalTask::execute() () #6 0x0000000000a62a95 in FollyExecutorPool::TaskProxy::scheduleViaCPUPool()::{lambda()#2}::operator()() const () #7 0x0000000000bb69b0 in folly::ThreadPoolExecutor::runTask(std::shared_ptr const&, folly::ThreadPoolExecutor::Task&&) () #8 0x0000000000b9e76a in folly::CPUThreadPoolExecutor::threadRun(std::shared_ptr) () #9 0x0000000000bb9969 in void folly::detail::function::FunctionTraits::callBig))(std::shared_ptr)> >(folly::detail::function::Data&) () #10 0x0000000000a62724 in void folly::detail::function::FunctionTraits::callBig&&)::{lambda()#1}>(folly::detail::function::Data&) () #11 0x00007f7ec0769d40 in execute_native_thread_routine () from /opt/couchbase/bin/../lib/libstdc++.so.6 #12 0x00007f7ec2571e65 in start_thread () from /lib64/libpthread.so.0 #13 0x00007f7ebfeb288d in clone () from /lib64/libc.so.6 Thread 27 (Thread 0x7f7e767fc700 (LWP 44376)): #0 0x00007f7ebfeb2e63 in epoll_wait () from /lib64/libc.so.6 #1 0x00007f7ec18463c5 in epoll_dispatch () from /opt/couchbase/bin/../lib/libevent_core-2.1.so.7 #2 0x00007f7ec183d376 in event_base_loop () from /opt/couchbase/bin/../lib/libevent_core-2.1.so.7 #3 0x0000000000bc0097 in folly::EventBase::loopBody(int, bool) () #4 0x0000000000bc0566 in folly::EventBase::loop() () #5 0x0000000000bc1f26 in folly::EventBase::loopForever() () #6 0x0000000000bae1d9 in folly::IOThreadPoolExecutor::threadRun(std::shared_ptr) () #7 0x0000000000bb9969 in void folly::detail::function::FunctionTraits::callBig))(std::shared_ptr)> >(folly::detail::function::Data&) () #8 0x00007f7ec0769d40 in execute_native_thread_routine () from /opt/couchbase/bin/../lib/libstdc++.so.6 #9 0x00007f7ec2571e65 in start_thread () from /lib64/libpthread.so.0 #10 0x00007f7ebfeb288d in clone () from /lib64/libc.so.6 Thread 26 (Thread 0x7f7e75ffb700 (LWP 44779)): #0 0x00007f7ec2575da2 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007f7ec1a7ee51 in background_thread_entry () from /opt/couchbase/bin/../lib/libjemalloc.so.2 #2 0x00007f7ec2571e65 in start_thread () from /lib64/libpthread.so.0 #3 0x00007f7ebfeb288d in clone () from /lib64/libc.so.6 Thread 25 (Thread 0x7f7e337ee700 (LWP 103695)): #0 0x00007f7ec2575da2 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x000000000099f9ff in magma::TaskQueue::dequeue(std::atomic&) () #2 0x000000000099fb51 in magma::TaskWorker::loop(void*) () #3 0x0000000000b4bdd9 in platform_thread_wrap(void*) () #4 0x00007f7ec2571e65 in start_thread () from /lib64/libpthread.so.0 #5 0x00007f7ebfeb288d in clone () from /lib64/libc.so.6 Thread 24 (Thread 0x7f7e33fef700 (LWP 103696)): #0 0x00007f7ec2575da2 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x000000000099f9ff in magma::TaskQueue::dequeue(std::atomic&) () #2 0x000000000099fb51 in magma::TaskWorker::loop(void*) () #3 0x0000000000b4bdd9 in platform_thread_wrap(void*) () #4 0x00007f7ec2571e65 in start_thread () from /lib64/libpthread.so.0 #5 0x00007f7ebfeb288d in clone () from /lib64/libc.so.6 Thread 23 (Thread 0x7f7e347f0700 (LWP 103697)): #0 0x00007f7ec2575da2 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x000000000099f9ff in magma::TaskQueue::dequeue(std::atomic&) () #2 0x000000000099fb51 in magma::TaskWorker::loop(void*) () #3 0x0000000000b4bdd9 in platform_thread_wrap(void*) () #4 0x00007f7ec2571e65 in start_thread () from /lib64/libpthread.so.0 #5 0x00007f7ebfeb288d in clone () from /lib64/libc.so.6 Thread 22 (Thread 0x7f7e34ff1700 (LWP 103698)): #0 0x00007f7ec2575da2 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x000000000099f9ff in magma::TaskQueue::dequeue(std::atomic&) () #2 0x000000000099fb51 in magma::TaskWorker::loop(void*) () #3 0x0000000000b4bdd9 in platform_thread_wrap(void*) () #4 0x00007f7ec2571e65 in start_thread () from /lib64/libpthread.so.0 #5 0x00007f7ebfeb288d in clone () from /lib64/libc.so.6 Thread 21 (Thread 0x7f7e757fa700 (LWP 103699)): #0 0x00007f7ec25759f5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007f7ec07648bc in std::condition_variable::wait(std::unique_lock&) () from /opt/couchbase/bin/../lib/libstdc++.so.6 #2 0x000000000099f768 in magma::TaskQueue::dequeue(std::atomic&) () #3 0x000000000099fb51 in magma::TaskWorker::loop(void*) () #4 0x0000000000b4bdd9 in platform_thread_wrap(void*) () #5 0x00007f7ec2571e65 in start_thread () from /lib64/libpthread.so.0 #6 0x00007f7ebfeb288d in clone () from /lib64/libc.so.6 Thread 20 (Thread 0x7f7e74ff9700 (LWP 103700)): #0 0x00007f7ec25759f5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007f7ec07648bc in std::condition_variable::wait(std::unique_lock&) () from /opt/couchbase/bin/../lib/libstdc++.so.6 #2 0x000000000099f768 in magma::TaskQueue::dequeue(std::atomic&) () #3 0x000000000099fb51 in magma::TaskWorker::loop(void*) () #4 0x0000000000b4bdd9 in platform_thread_wrap(void*) () #5 0x00007f7ec2571e65 in start_thread () from /lib64/libpthread.so.0 #6 0x00007f7ebfeb288d in clone () from /lib64/libc.so.6 Thread 19 (Thread 0x7f7e3bfff700 (LWP 103701)): #0 0x00007f7ec25759f5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007f7ec07648bc in std::condition_variable::wait(std::unique_lock&) () from /opt/couchbase/bin/../lib/libstdc++.so.6 #2 0x000000000099f768 in magma::TaskQueue::dequeue(std::atomic&) () #3 0x000000000099fb51 in magma::TaskWorker::loop(void*) () #4 0x0000000000b4bdd9 in platform_thread_wrap(void*) () #5 0x00007f7ec2571e65 in start_thread () from /lib64/libpthread.so.0 #6 0x00007f7ebfeb288d in clone () from /lib64/libc.so.6 Thread 18 (Thread 0x7f7e3b7fe700 (LWP 103702)): #0 0x00007f7ec25759f5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007f7ec07648bc in std::condition_variable::wait(std::unique_lock&) () from /opt/couchbase/bin/../lib/libstdc++.so.6 #2 0x000000000099f768 in magma::TaskQueue::dequeue(std::atomic&) () #3 0x000000000099fb51 in magma::TaskWorker::loop(void*) () #4 0x0000000000b4bdd9 in platform_thread_wrap(void*) () #5 0x00007f7ec2571e65 in start_thread () from /lib64/libpthread.so.0 #6 0x00007f7ebfeb288d in clone () from /lib64/libc.so.6 Thread 17 (Thread 0x7f7e3affd700 (LWP 103715)): #0 0x00007f7ec25759f5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007f7ec07648bc in std::condition_variable::wait(std::unique_lock&) () from /opt/couchbase/bin/../lib/libstdc++.so.6 #2 0x000000000099f768 in magma::TaskQueue::dequeue(std::atomic&) () #3 0x000000000099fb51 in magma::TaskWorker::loop(void*) () #4 0x0000000000b4bdd9 in platform_thread_wrap(void*) () #5 0x00007f7ec2571e65 in start_thread () from /lib64/libpthread.so.0 #6 0x00007f7ebfeb288d in clone () from /lib64/libc.so.6 Thread 16 (Thread 0x7f7e3a7fc700 (LWP 103716)): #0 0x00007f7ec25759f5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007f7ec07648bc in std::condition_variable::wait(std::unique_lock&) () from /opt/couchbase/bin/../lib/libstdc++.so.6 #2 0x000000000099f768 in magma::TaskQueue::dequeue(std::atomic&) () #3 0x000000000099fb51 in magma::TaskWorker::loop(void*) () #4 0x0000000000b4bdd9 in platform_thread_wrap(void*) () #5 0x00007f7ec2571e65 in start_thread () from /lib64/libpthread.so.0 #6 0x00007f7ebfeb288d in clone () from /lib64/libc.so.6 Thread 15 (Thread 0x7f7e39ffb700 (LWP 103717)): #0 0x00007f7ec25759f5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007f7ec07648bc in std::condition_variable::wait(std::unique_lock&) () from /opt/couchbase/bin/../lib/libstdc++.so.6 #2 0x000000000099f768 in magma::TaskQueue::dequeue(std::atomic&) () #3 0x000000000099fb51 in magma::TaskWorker::loop(void*) () #4 0x0000000000b4bdd9 in platform_thread_wrap(void*) () #5 0x00007f7ec2571e65 in start_thread () from /lib64/libpthread.so.0 #6 0x00007f7ebfeb288d in clone () from /lib64/libc.so.6 Thread 14 (Thread 0x7f7e397fa700 (LWP 103718)): #0 0x00007f7ec25759f5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007f7ec07648bc in std::condition_variable::wait(std::unique_lock&) () from /opt/couchbase/bin/../lib/libstdc++.so.6 #2 0x000000000099f768 in magma::TaskQueue::dequeue(std::atomic&) () #3 0x000000000099fb51 in magma::TaskWorker::loop(void*) () #4 0x0000000000b4bdd9 in platform_thread_wrap(void*) () #5 0x00007f7ec2571e65 in start_thread () from /lib64/libpthread.so.0 #6 0x00007f7ebfeb288d in clone () from /lib64/libc.so.6 Thread 13 (Thread 0x7f7e38ff9700 (LWP 103719)): #0 0x00007f7ec25759f5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007f7ec07648bc in std::condition_variable::wait(std::unique_lock&) () from /opt/couchbase/bin/../lib/libstdc++.so.6 #2 0x000000000099f768 in magma::TaskQueue::dequeue(std::atomic&) () #3 0x000000000099fb51 in magma::TaskWorker::loop(void*) () #4 0x0000000000b4bdd9 in platform_thread_wrap(void*) () #5 0x00007f7ec2571e65 in start_thread () from /lib64/libpthread.so.0 #6 0x00007f7ebfeb288d in clone () from /lib64/libc.so.6 Thread 12 (Thread 0x7f7e387f8700 (LWP 103720)): #0 0x00007f7ec25759f5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007f7ec07648bc in std::condition_variable::wait(std::unique_lock&) () from /opt/couchbase/bin/../lib/libstdc++.so.6 #2 0x000000000099f768 in magma::TaskQueue::dequeue(std::atomic&) () #3 0x000000000099fb51 in magma::TaskWorker::loop(void*) () #4 0x0000000000b4bdd9 in platform_thread_wrap(void*) () #5 0x00007f7ec2571e65 in start_thread () from /lib64/libpthread.so.0 #6 0x00007f7ebfeb288d in clone () from /lib64/libc.so.6 Thread 11 (Thread 0x7f7e37ff7700 (LWP 103721)): #0 0x00007f7ec25759f5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007f7ec07648bc in std::condition_variable::wait(std::unique_lock&) () from /opt/couchbase/bin/../lib/libstdc++.so.6 #2 0x000000000099f768 in magma::TaskQueue::dequeue(std::atomic&) () #3 0x000000000099fb51 in magma::TaskWorker::loop(void*) () #4 0x0000000000b4bdd9 in platform_thread_wrap(void*) () #5 0x00007f7ec2571e65 in start_thread () from /lib64/libpthread.so.0 #6 0x00007f7ebfeb288d in clone () from /lib64/libc.so.6 Thread 10 (Thread 0x7f7e377f6700 (LWP 103722)): #0 0x00007f7ec25759f5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007f7ec07648bc in std::condition_variable::wait(std::unique_lock&) () from /opt/couchbase/bin/../lib/libstdc++.so.6 #2 0x000000000099f768 in magma::TaskQueue::dequeue(std::atomic&) () #3 0x000000000099fb51 in magma::TaskWorker::loop(void*) () #4 0x0000000000b4bdd9 in platform_thread_wrap(void*) () #5 0x00007f7ec2571e65 in start_thread () from /lib64/libpthread.so.0 #6 0x00007f7ebfeb288d in clone () from /lib64/libc.so.6 Thread 9 (Thread 0x7f7e36ff5700 (LWP 103723)): #0 0x00007f7ec25759f5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007f7ec07648bc in std::condition_variable::wait(std::unique_lock&) () from /opt/couchbase/bin/../lib/libstdc++.so.6 #2 0x000000000099f768 in magma::TaskQueue::dequeue(std::atomic&) () #3 0x000000000099fb51 in magma::TaskWorker::loop(void*) () #4 0x0000000000b4bdd9 in platform_thread_wrap(void*) () #5 0x00007f7ec2571e65 in start_thread () from /lib64/libpthread.so.0 #6 0x00007f7ebfeb288d in clone () from /lib64/libc.so.6 Thread 8 (Thread 0x7f7e367f4700 (LWP 103724)): #0 0x00007f7ec25759f5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007f7ec07648bc in std::condition_variable::wait(std::unique_lock&) () from /opt/couchbase/bin/../lib/libstdc++.so.6 #2 0x000000000099f768 in magma::TaskQueue::dequeue(std::atomic&) () #3 0x000000000099fb51 in magma::TaskWorker::loop(void*) () #4 0x0000000000b4bdd9 in platform_thread_wrap(void*) () #5 0x00007f7ec2571e65 in start_thread () from /lib64/libpthread.so.0 #6 0x00007f7ebfeb288d in clone () from /lib64/libc.so.6 Thread 7 (Thread 0x7f7e35ff3700 (LWP 103725)): #0 0x00007f7ec25759f5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007f7ec07648bc in std::condition_variable::wait(std::unique_lock&) () from /opt/couchbase/bin/../lib/libstdc++.so.6 #2 0x000000000099f768 in magma::TaskQueue::dequeue(std::atomic&) () #3 0x000000000099fb51 in magma::TaskWorker::loop(void*) () #4 0x0000000000b4bdd9 in platform_thread_wrap(void*) () #5 0x00007f7ec2571e65 in start_thread () from /lib64/libpthread.so.0 #6 0x00007f7ebfeb288d in clone () from /lib64/libc.so.6 Thread 6 (Thread 0x7f7e357f2700 (LWP 103726)): #0 0x00007f7ec25759f5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007f7ec07648bc in std::condition_variable::wait(std::unique_lock&) () from /opt/couchbase/bin/../lib/libstdc++.so.6 #2 0x000000000099f768 in magma::TaskQueue::dequeue(std::atomic&) () #3 0x000000000099fb51 in magma::TaskWorker::loop(void*) () #4 0x0000000000b4bdd9 in platform_thread_wrap(void*) () #5 0x00007f7ec2571e65 in start_thread () from /lib64/libpthread.so.0 #6 0x00007f7ebfeb288d in clone () from /lib64/libc.so.6 Thread 5 (Thread 0x7f7e98ff9700 (LWP 119588)): #0 0x00007f7ebfeacba9 in syscall () from /lib64/libc.so.6 #1 0x0000000000b9648d in folly::detail::futexWaitImpl(std::atomic const*, unsigned int, std::chrono::time_point > > const*, std::chrono::time_point > > const*, unsigned int) () #2 0x0000000000ba055a in folly::detail::FutexResult folly::detail::futexWaitUntil, std::chrono::_V2::steady_clock, std::chrono::duration > >(std::atomic const*, unsigned int, std::chrono::time_point > > const&, unsigned int) () #3 0x0000000000ba63bd in bool folly::SaturatingSemaphore::tryWaitSlow > >(std::chrono::time_point > > const&, folly::WaitOptions const&) () #4 0x0000000000ba6a26 in bool folly::detail::LifoSemBase, std::atomic>::try_wait_until > >(std::chrono::time_point > > const&) () #5 0x0000000000baa180 in folly::UnboundedBlockingQueue::try_take_for(std::chrono::duration >) () #6 0x0000000000b9e6f7 in folly::CPUThreadPoolExecutor::threadRun(std::shared_ptr) () #7 0x0000000000bb9969 in void folly::detail::function::FunctionTraits::callBig))(std::shared_ptr)> >(folly::detail::function::Data&) () #8 0x0000000000a62724 in void folly::detail::function::FunctionTraits::callBig&&)::{lambda()#1}>(folly::detail::function::Data&) () #9 0x00007f7ec0769d40 in execute_native_thread_routine () from /opt/couchbase/bin/../lib/libstdc++.so.6 #10 0x00007f7ec2571e65 in start_thread () from /lib64/libpthread.so.0 #11 0x00007f7ebfeb288d in clone () from /lib64/libc.so.6 Thread 4 (Thread 0x7f7e317fd700 (LWP 123226)): #0 0x00007f7ebfeacba9 in syscall () from /lib64/libc.so.6 #1 0x0000000000b9648d in folly::detail::futexWaitImpl(std::atomic const*, unsigned int, std::chrono::time_point > > const*, std::chrono::time_point > > const*, unsigned int) () #2 0x0000000000ba055a in folly::detail::FutexResult folly::detail::futexWaitUntil, std::chrono::_V2::steady_clock, std::chrono::duration > >(std::atomic const*, unsigned int, std::chrono::time_point > > const&, unsigned int) () #3 0x0000000000ba63bd in bool folly::SaturatingSemaphore::tryWaitSlow > >(std::chrono::time_point > > const&, folly::WaitOptions const&) () #4 0x0000000000ba6a26 in bool folly::detail::LifoSemBase, std::atomic>::try_wait_until > >(std::chrono::time_point > > const&) () #5 0x0000000000baa180 in folly::UnboundedBlockingQueue::try_take_for(std::chrono::duration >) () #6 0x0000000000b9e6f7 in folly::CPUThreadPoolExecutor::threadRun(std::shared_ptr) () #7 0x0000000000bb9969 in void folly::detail::function::FunctionTraits::callBig))(std::shared_ptr)> >(folly::detail::function::Data&) () #8 0x0000000000a62724 in void folly::detail::function::FunctionTraits::callBig&&)::{lambda()#1}>(folly::detail::function::Data&) () #9 0x00007f7ec0769d40 in execute_native_thread_routine () from /opt/couchbase/bin/../lib/libstdc++.so.6 #10 0x00007f7ec2571e65 in start_thread () from /lib64/libpthread.so.0 #11 0x00007f7ebfeb288d in clone () from /lib64/libc.so.6 Thread 3 (Thread 0x7f7e327ff700 (LWP 123227)): #0 0x00007f7ebfeacba9 in syscall () from /lib64/libc.so.6 #1 0x0000000000b9648d in folly::detail::futexWaitImpl(std::atomic const*, unsigned int, std::chrono::time_point > > const*, std::chrono::time_point > > const*, unsigned int) () #2 0x0000000000ba055a in folly::detail::FutexResult folly::detail::futexWaitUntil, std::chrono::_V2::steady_clock, std::chrono::duration > >(std::atomic const*, unsigned int, std::chrono::time_point > > const&, unsigned int) () #3 0x0000000000ba64f7 in bool folly::SaturatingSemaphore::tryWaitSlow > >(std::chrono::time_point > > const&, folly::WaitOptions const&) () #4 0x0000000000ba6a26 in bool folly::detail::LifoSemBase, std::atomic>::try_wait_until > >(std::chrono::time_point > > const&) () #5 0x0000000000baa180 in folly::UnboundedBlockingQueue::try_take_for(std::chrono::duration >) () #6 0x0000000000b9e6f7 in folly::CPUThreadPoolExecutor::threadRun(std::shared_ptr) () #7 0x0000000000bb9969 in void folly::detail::function::FunctionTraits::callBig))(std::shared_ptr)> >(folly::detail::function::Data&) () #8 0x0000000000a62724 in void folly::detail::function::FunctionTraits::callBig&&)::{lambda()#1}>(folly::detail::function::Data&) () #9 0x00007f7ec0769d40 in execute_native_thread_routine () from /opt/couchbase/bin/../lib/libstdc++.so.6 #10 0x00007f7ec2571e65 in start_thread () from /lib64/libpthread.so.0 #11 0x00007f7ebfeb288d in clone () from /lib64/libc.so.6 Thread 2 (Thread 0x7f7e30ffc700 (LWP 3121)): #0 0x00007f7ebfeacba9 in syscall () from /lib64/libc.so.6 #1 0x0000000000b9648d in folly::detail::futexWaitImpl(std::atomic const*, unsigned int, std::chrono::time_point > > const*, std::chrono::time_point > > const*, unsigned int) () #2 0x0000000000ba055a in folly::detail::FutexResult folly::detail::futexWaitUntil, std::chrono::_V2::steady_clock, std::chrono::duration > >(std::atomic const*, unsigned int, std::chrono::time_point > > const&, unsigned int) () #3 0x0000000000ba64f7 in bool folly::SaturatingSemaphore::tryWaitSlow > >(std::chrono::time_point > > const&, folly::WaitOptions const&) () #4 0x0000000000ba6a26 in bool folly::detail::LifoSemBase, std::atomic>::try_wait_until > >(std::chrono::time_point > > const&) () #5 0x0000000000baa180 in folly::UnboundedBlockingQueue::try_take_for(std::chrono::duration >) () #6 0x0000000000b9e6f7 in folly::CPUThreadPoolExecutor::threadRun(std::shared_ptr) () #7 0x0000000000bb9969 in void folly::detail::function::FunctionTraits::callBig))(std::shared_ptr)> >(folly::detail::function::Data&) () #8 0x0000000000a62724 in void folly::detail::function::FunctionTraits::callBig&&)::{lambda()#1}>(folly::detail::function::Data&) () #9 0x00007f7ec0769d40 in execute_native_thread_routine () from /opt/couchbase/bin/../lib/libstdc++.so.6 #10 0x00007f7ec2571e65 in start_thread () from /lib64/libpthread.so.0 #11 0x00007f7ebfeb288d in clone () from /lib64/libc.so.6 Thread 1 (Thread 0x7f7ec33e8c40 (LWP 44312)): #0 0x00007f7ebfeb2e63 in epoll_wait () from /lib64/libc.so.6 #1 0x00007f7ec18463c5 in epoll_dispatch () from /opt/couchbase/bin/../lib/libevent_core-2.1.so.7 #2 0x00007f7ec183d376 in event_base_loop () from /opt/couchbase/bin/../lib/libevent_core-2.1.so.7 #3 0x0000000000bc0097 in folly::EventBase::loopBody(int, bool) () #4 0x0000000000bc0566 in folly::EventBase::loop() () #5 0x0000000000bc1f26 in folly::EventBase::loopForever() () #6 0x0000000000561bfb in memcached_main(int, char**) () #7 0x00007f7ebfdd6505 in __libc_start_main () from /lib64/libc.so.6 #8 0x000000000055a0e7 in _start () Detaching from program: /opt/couchbase/bin/memcached, process 44312