GNU gdb (GDB) Red Hat Enterprise Linux (7.2-60.el6_4.1) Copyright (C) 2010 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 11345 Reading symbols from /opt/couchbase/bin/memcached...done. Reading symbols from /opt/couchbase/lib/memcached/libmemcached_utilities.so.0...done. Loaded symbols for /opt/couchbase/lib/memcached/libmemcached_utilities.so.0 Reading symbols from /opt/couchbase/lib/libevent-2.0.so.5...done. Loaded symbols for /opt/couchbase/lib/libevent-2.0.so.5 Reading symbols from /lib64/libdl.so.2...(no debugging symbols found)...done. Loaded symbols for /lib64/libdl.so.2 Reading symbols from /lib64/libm.so.6...(no debugging symbols found)...done. Loaded symbols for /lib64/libm.so.6 Reading symbols from /lib64/librt.so.1...(no debugging symbols found)...done. Loaded symbols for /lib64/librt.so.1 Reading symbols from /opt/couchbase/lib/libtcmalloc_minimal.so.4...done. Loaded symbols for /opt/couchbase/lib/libtcmalloc_minimal.so.4 Reading symbols from /lib64/libpthread.so.0...(no debugging symbols found)...done. [New LWP 21445] [New LWP 21444] [New LWP 21443] [New LWP 21242] [New LWP 21241] [New LWP 21240] [New LWP 21123] [New LWP 21122] [New LWP 21121] [New LWP 21120] [New LWP 21119] [New LWP 21118] [New LWP 21117] [New LWP 21116] [New LWP 21115] [New LWP 21114] [New LWP 21113] [New LWP 21112] [New LWP 11356] [New LWP 11355] [New LWP 11354] [New LWP 11353] [New LWP 11352] [New LWP 11347] [New LWP 11346] [Thread debugging using libthread_db enabled] Loaded symbols for /lib64/libpthread.so.0 Reading symbols from /lib64/libc.so.6...(no debugging symbols found)...done. Loaded symbols for /lib64/libc.so.6 Reading symbols from /lib64/ld-linux-x86-64.so.2...(no debugging symbols found)...done. Loaded symbols for /lib64/ld-linux-x86-64.so.2 Reading symbols from /usr/lib64/libstdc++.so.6...(no debugging symbols found)...done. Loaded symbols for /usr/lib64/libstdc++.so.6 Reading symbols from /lib64/libgcc_s.so.1...(no debugging symbols found)...done. Loaded symbols for /lib64/libgcc_s.so.1 Reading symbols from /opt/couchbase/lib/memcached/stdin_term_handler.so...done. Loaded symbols for /opt/couchbase/lib/memcached/stdin_term_handler.so Reading symbols from /opt/couchbase/lib/memcached/file_logger.so...done. Loaded symbols for /opt/couchbase/lib/memcached/file_logger.so Reading symbols from /opt/couchbase/lib/memcached/bucket_engine.so...done. Loaded symbols for /opt/couchbase/lib/memcached/bucket_engine.so Reading symbols from /opt/couchbase/lib/memcached/ep.so...done. Loaded symbols for /opt/couchbase/lib/memcached/ep.so Reading symbols from /opt/couchbase/lib/libcouchstore.so.1...done. Loaded symbols for /opt/couchbase/lib/libcouchstore.so.1 Reading symbols from /opt/couchbase/lib/libsnappy.so.1...done. Loaded symbols for /opt/couchbase/lib/libsnappy.so.1 Reading symbols from /opt/couchbase/lib/libicuuc.so.44...done. Loaded symbols for /opt/couchbase/lib/libicuuc.so.44 Reading symbols from /opt/couchbase/lib/libicudata.so.44...(no debugging symbols found)...done. Loaded symbols for /opt/couchbase/lib/libicudata.so.44 Reading symbols from /opt/couchbase/lib/libicui18n.so.44...done. Loaded symbols for /opt/couchbase/lib/libicui18n.so.44 0x00007f121a2fbf03 in epoll_wait () from /lib64/libc.so.6 Thread 26 (Thread 0x7f1219af5700 (LWP 11346)): #0 0x00007f121a2ee60d in read () from /lib64/libc.so.6 #1 0x00007f121a284f68 in _IO_new_file_underflow () from /lib64/libc.so.6 #2 0x00007f121a286a6e in _IO_default_uflow_internal () from /lib64/libc.so.6 #3 0x00007f121a27b14a in _IO_getline_info_internal () from /lib64/libc.so.6 #4 0x00007f121a279fa9 in fgets () from /lib64/libc.so.6 #5 0x00007f1219af6939 in check_stdin_thread (arg=) at extensions/daemon/stdin_check.c:37 #6 0x00007f121a5ad851 in start_thread () from /lib64/libpthread.so.0 #7 0x00007f121a2fb90d in clone () from /lib64/libc.so.6 Thread 25 (Thread 0x7f1218ee0700 (LWP 11347)): #0 0x00007f121a5b17bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007f1218ee44d6 in logger_thead_main (arg=0x9ac040) at extensions/loggers/file_logger.c:368 #2 0x00007f121a5ad851 in start_thread () from /lib64/libpthread.so.0 #3 0x00007f121a2fb90d in clone () from /lib64/libc.so.6 Thread 24 (Thread 0x7f12182d3700 (LWP 11352)): #0 0x00007f121a2fbf03 in epoll_wait () from /lib64/libc.so.6 #1 0x00007f121b0bf576 in epoll_dispatch (base=0x5218500, tv=) at epoll.c:404 #2 0x00007f121b0aae44 in event_base_loop (base=0x5218500, flags=) at event.c:1558 #3 0x0000000000414604 in worker_libevent (arg=0x9af900) at daemon/thread.c:301 #4 0x00007f121a5ad851 in start_thread () from /lib64/libpthread.so.0 #5 0x00007f121a2fb90d in clone () from /lib64/libc.so.6 Thread 23 (Thread 0x7f12178d2700 (LWP 11353)): #0 0x00007f121a2fbf03 in epoll_wait () from /lib64/libc.so.6 #1 0x00007f121b0bf576 in epoll_dispatch (base=0x5218280, tv=) at epoll.c:404 #2 0x00007f121b0aae44 in event_base_loop (base=0x5218280, flags=) at event.c:1558 #3 0x0000000000414604 in worker_libevent (arg=0x9af9f8) at daemon/thread.c:301 #4 0x00007f121a5ad851 in start_thread () from /lib64/libpthread.so.0 #5 0x00007f121a2fb90d in clone () from /lib64/libc.so.6 Thread 22 (Thread 0x7f1216ed1700 (LWP 11354)): #0 0x00007f121a2fbf03 in epoll_wait () from /lib64/libc.so.6 #1 0x00007f121b0bf576 in epoll_dispatch (base=0x5218c80, tv=) at epoll.c:404 #2 0x00007f121b0aae44 in event_base_loop (base=0x5218c80, flags=) at event.c:1558 #3 0x0000000000414604 in worker_libevent (arg=0x9afaf0) at daemon/thread.c:301 #4 0x00007f121a5ad851 in start_thread () from /lib64/libpthread.so.0 #5 0x00007f121a2fb90d in clone () from /lib64/libc.so.6 Thread 21 (Thread 0x7f12164d0700 (LWP 11355)): #0 0x00007f121a2fbf03 in epoll_wait () from /lib64/libc.so.6 #1 0x00007f121b0bf576 in epoll_dispatch (base=0x5218a00, tv=) at epoll.c:404 #2 0x00007f121b0aae44 in event_base_loop (base=0x5218a00, flags=) at event.c:1558 #3 0x0000000000414604 in worker_libevent (arg=0x9afbe8) at daemon/thread.c:301 #4 0x00007f121a5ad851 in start_thread () from /lib64/libpthread.so.0 #5 0x00007f121a2fb90d in clone () from /lib64/libc.so.6 Thread 20 (Thread 0x7f1215acf700 (LWP 11356)): #0 0x00007f121a2fbf03 in epoll_wait () from /lib64/libc.so.6 #1 0x00007f121b0bf576 in epoll_dispatch (base=0x5218780, tv=) at epoll.c:404 #2 0x00007f121b0aae44 in event_base_loop (base=0x5218780, flags=) at event.c:1558 #3 0x0000000000414604 in worker_libevent (arg=0x9afce0) at daemon/thread.c:301 #4 0x00007f121a5ad851 in start_thread () from /lib64/libpthread.so.0 #5 0x00007f121a2fb90d in clone () from /lib64/libc.so.6 Thread 19 (Thread 0x7f12150ce700 (LWP 21112)): #0 0x00007f121a2bfb8d in nanosleep () from /lib64/libc.so.6 #1 0x00007f121a2f4d64 in usleep () from /lib64/libc.so.6 #2 0x00007f1214436085 in updateStatsThread (arg=0x9ac4c0) at src/memory_tracker.cc:31 #3 0x00007f121a5ad851 in start_thread () from /lib64/libpthread.so.0 #4 0x00007f121a2fb90d in clone () from /lib64/libc.so.6 Thread 18 (Thread 0x7f1212849700 (LWP 21113)): #0 0x00007f121a5b4054 in __lll_lock_wait () from /lib64/libpthread.so.0 #1 0x00007f121a5af388 in _L_lock_854 () from /lib64/libpthread.so.0 #2 0x00007f121a5af257 in pthread_mutex_lock () from /lib64/libpthread.so.0 #3 0x00007f1214436f7a in Mutex::acquire (this=0x641e0f0) at src/mutex.cc:79 #4 0x00007f121447d566 in lock (this=0x641e000) at ./src/locks.hh:48 #5 LockHolder (this=0x641e000) at ./src/locks.hh:26 #6 CouchNotifier::selectBucket (this=0x641e000) at src/couch-kvstore/couch-notifier.cc:723 #7 0x00007f121447dbcf in CouchNotifier::processInput (this=0x641e000) at src/couch-kvstore/couch-notifier.cc:606 #8 0x00007f121447e475 in waitOnce (this=0x641e000, vbs=..., file_version=1, header_offset=212992, cb=...) at src/couch-kvstore/couch-notifier.cc:675 #9 CouchNotifier::notify_update (this=0x641e000, vbs=..., file_version=1, header_offset=212992, cb=...) at src/couch-kvstore/couch-notifier.cc:755 #10 0x00007f1214475cb8 in notify_headerpos_update (this=0x643fb00, vbid=760, rev=1, docs=0x323bd880, docinfos=0x323bda40, docCount=56) at ./src/couch-kvstore/couch-notifier.hh:144 #11 CouchKVStore::saveDocs (this=0x643fb00, vbid=760, rev=1, docs=0x323bd880, docinfos=0x323bda40, docCount=56) at src/couch-kvstore/couch-kvstore.cc:1498 #12 0x00007f121447628b in CouchKVStore::commit2couchstore (this=0x643fb00) at src/couch-kvstore/couch-kvstore.cc:1410 #13 0x00007f121447647a in CouchKVStore::commit (this=) at src/couch-kvstore/couch-kvstore.cc:806 #14 0x00007f1214401f56 in EventuallyPersistentStore::flushVBucket (this=0x6395c00, vbid=760) at src/ep.cc:1919 #15 0x00007f121442aeb9 in doFlush (this=0x520b7a0, tid=1098) at src/flusher.cc:222 #16 Flusher::step (this=0x520b7a0, tid=1098) at src/flusher.cc:152 #17 0x00007f121443ac10 in ExecutorThread::run (this=0x52bfba0) at src/scheduler.cc:148 #18 0x00007f121443b32d in launch_executor_thread (arg=0x52bfba0) at src/scheduler.cc:34 #19 0x00007f121a5ad851 in start_thread () from /lib64/libpthread.so.0 #20 0x00007f121a2fb90d in clone () from /lib64/libc.so.6 Thread 17 (Thread 0x7f1211e48700 (LWP 21114)): #0 0x00007f121a5b4054 in __lll_lock_wait () from /lib64/libpthread.so.0 #1 0x00007f121a5af388 in _L_lock_854 () from /lib64/libpthread.so.0 #2 0x00007f121a5af257 in pthread_mutex_lock () from /lib64/libpthread.so.0 #3 0x00007f1214436f7a in Mutex::acquire (this=0x641e0f0) at src/mutex.cc:79 #4 0x00007f121447e2c3 in lock (this=0x641e000, vbs=..., file_version=1, header_offset=217088, cb=...) at ./src/locks.hh:48 #5 LockHolder (this=0x641e000, vbs=..., file_version=1, header_offset=217088, cb=...) at ./src/locks.hh:26 #6 CouchNotifier::notify_update (this=0x641e000, vbs=..., file_version=1, header_offset=217088, cb=...) at src/couch-kvstore/couch-notifier.cc:753 #7 0x00007f1214475cb8 in notify_headerpos_update (this=0x64d4c00, vbid=693, rev=1, docs=0x93f4480, docinfos=0x94186c0, docCount=72) at ./src/couch-kvstore/couch-notifier.hh:144 #8 CouchKVStore::saveDocs (this=0x64d4c00, vbid=693, rev=1, docs=0x93f4480, docinfos=0x94186c0, docCount=72) at src/couch-kvstore/couch-kvstore.cc:1498 #9 0x00007f121447628b in CouchKVStore::commit2couchstore (this=0x64d4c00) at src/couch-kvstore/couch-kvstore.cc:1410 #10 0x00007f121447647a in CouchKVStore::commit (this=) at src/couch-kvstore/couch-kvstore.cc:806 #11 0x00007f1214401f56 in EventuallyPersistentStore::flushVBucket (this=0x6395c00, vbid=693) at src/ep.cc:1919 #12 0x00007f121442aeb9 in doFlush (this=0x520b680, tid=1095) at src/flusher.cc:222 #13 Flusher::step (this=0x520b680, tid=1095) at src/flusher.cc:152 #14 0x00007f121443ac10 in ExecutorThread::run (this=0x52bfa00) at src/scheduler.cc:148 #15 0x00007f121443b32d in launch_executor_thread (arg=0x52bfa00) at src/scheduler.cc:34 #16 0x00007f121a5ad851 in start_thread () from /lib64/libpthread.so.0 #17 0x00007f121a2fb90d in clone () from /lib64/libc.so.6 Thread 16 (Thread 0x7f1211447700 (LWP 21115)): #0 0x00007f121a5b4054 in __lll_lock_wait () from /lib64/libpthread.so.0 #1 0x00007f121a5af388 in _L_lock_854 () from /lib64/libpthread.so.0 #2 0x00007f121a5af257 in pthread_mutex_lock () from /lib64/libpthread.so.0 #3 0x00007f1214436f7a in Mutex::acquire (this=0x641e0f0) at src/mutex.cc:79 #4 0x00007f121447e2c3 in lock (this=0x641e000, vbs=..., file_version=1, header_offset=212992, cb=...) at ./src/locks.hh:48 #5 LockHolder (this=0x641e000, vbs=..., file_version=1, header_offset=212992, cb=...) at ./src/locks.hh:26 #6 CouchNotifier::notify_update (this=0x641e000, vbs=..., file_version=1, header_offset=212992, cb=...) at src/couch-kvstore/couch-notifier.cc:753 #7 0x00007f1214475cb8 in notify_headerpos_update (this=0x64d4600, vbid=750, rev=1, docs=0x321a4480, docinfos=0x321a4fc0, docCount=65) at ./src/couch-kvstore/couch-notifier.hh:144 #8 CouchKVStore::saveDocs (this=0x64d4600, vbid=750, rev=1, docs=0x321a4480, docinfos=0x321a4fc0, docCount=65) at src/couch-kvstore/couch-kvstore.cc:1498 #9 0x00007f121447628b in CouchKVStore::commit2couchstore (this=0x64d4600) at src/couch-kvstore/couch-kvstore.cc:1410 #10 0x00007f121447647a in CouchKVStore::commit (this=) at src/couch-kvstore/couch-kvstore.cc:806 #11 0x00007f1214401f56 in EventuallyPersistentStore::flushVBucket (this=0x6395c00, vbid=750) at src/ep.cc:1919 #12 0x00007f121442aeb9 in doFlush (this=0x520b560, tid=1096) at src/flusher.cc:222 #13 Flusher::step (this=0x520b560, tid=1096) at src/flusher.cc:152 #14 0x00007f121443ac10 in ExecutorThread::run (this=0x52bf860) at src/scheduler.cc:148 #15 0x00007f121443b32d in launch_executor_thread (arg=0x52bf860) at src/scheduler.cc:34 #16 0x00007f121a5ad851 in start_thread () from /lib64/libpthread.so.0 #17 0x00007f121a2fb90d in clone () from /lib64/libc.so.6 Thread 15 (Thread 0x7f1210a46700 (LWP 21116)): #0 0x00007f121a5b4054 in __lll_lock_wait () from /lib64/libpthread.so.0 #1 0x00007f121a5af388 in _L_lock_854 () from /lib64/libpthread.so.0 #2 0x00007f121a5af257 in pthread_mutex_lock () from /lib64/libpthread.so.0 #3 0x00007f1214436f7a in Mutex::acquire (this=0x528f0f0) at src/mutex.cc:79 #4 0x00007f121447d566 in lock (this=0x528f000) at ./src/locks.hh:48 #5 LockHolder (this=0x528f000) at ./src/locks.hh:26 #6 CouchNotifier::selectBucket (this=0x528f000) at src/couch-kvstore/couch-notifier.cc:723 #7 0x00007f121447dbcf in CouchNotifier::processInput (this=0x528f000) at src/couch-kvstore/couch-notifier.cc:606 #8 0x00007f121447e475 in waitOnce (this=0x528f000, vbs=..., file_version=2, header_offset=1798144, cb=...) at src/couch-kvstore/couch-notifier.cc:675 #9 CouchNotifier::notify_update (this=0x528f000, vbs=..., file_version=2, header_offset=1798144, cb=...) at src/couch-kvstore/couch-notifier.cc:755 #10 0x00007f1214475cb8 in notify_headerpos_update (this=0x5295b00, vbid=1023, rev=2, docs=0x1a897c00, docinfos=0x1a896a80, docCount=107) at ./src/couch-kvstore/couch-notifier.hh:144 #11 CouchKVStore::saveDocs (this=0x5295b00, vbid=1023, rev=2, docs=0x1a897c00, docinfos=0x1a896a80, docCount=107) at src/couch-kvstore/couch-kvstore.cc:1498 #12 0x00007f121447628b in CouchKVStore::commit2couchstore (this=0x5295b00) at src/couch-kvstore/couch-kvstore.cc:1410 #13 0x00007f121447647a in CouchKVStore::commit (this=) at src/couch-kvstore/couch-kvstore.cc:806 #14 0x00007f1214401f56 in EventuallyPersistentStore::flushVBucket (this=0x527e000, vbid=1023) at src/ep.cc:1919 #15 0x00007f121442aeb9 in doFlush (this=0x520a360, tid=12) at src/flusher.cc:222 #16 Flusher::step (this=0x520a360, tid=12) at src/flusher.cc:152 #17 0x00007f121443ac10 in ExecutorThread::run (this=0x52e6ea0) at src/scheduler.cc:148 #18 0x00007f121443b32d in launch_executor_thread (arg=0x52e6ea0) at src/scheduler.cc:34 #19 0x00007f121a5ad851 in start_thread () from /lib64/libpthread.so.0 #20 0x00007f121a2fb90d in clone () from /lib64/libc.so.6 Thread 14 (Thread 0x7f1210045700 (LWP 21117)): #0 0x00007f121a5b17bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007f121443aaa1 in wait (this=0x52e6d00) at src/syncobject.hh:57 #2 ExecutorThread::run (this=0x52e6d00) at src/scheduler.cc:134 #3 0x00007f121443b32d in launch_executor_thread (arg=0x52e6d00) at src/scheduler.cc:34 #4 0x00007f121a5ad851 in start_thread () from /lib64/libpthread.so.0 #5 0x00007f121a2fb90d in clone () from /lib64/libc.so.6 Thread 13 (Thread 0x7f120f644700 (LWP 21118)): #0 0x00007f121a5b17bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007f121443aaa1 in wait (this=0x52e6b60) at src/syncobject.hh:57 #2 ExecutorThread::run (this=0x52e6b60) at src/scheduler.cc:134 #3 0x00007f121443b32d in launch_executor_thread (arg=0x52e6b60) at src/scheduler.cc:34 #4 0x00007f121a5ad851 in start_thread () from /lib64/libpthread.so.0 #5 0x00007f121a2fb90d in clone () from /lib64/libc.so.6 Thread 12 (Thread 0x7f120ec43700 (LWP 21119)): #0 0x00007f121a5b17bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007f121443aaa1 in wait (this=0x52e69c0) at src/syncobject.hh:57 #2 ExecutorThread::run (this=0x52e69c0) at src/scheduler.cc:134 #3 0x00007f121443b32d in launch_executor_thread (arg=0x52e69c0) at src/scheduler.cc:34 #4 0x00007f121a5ad851 in start_thread () from /lib64/libpthread.so.0 #5 0x00007f121a2fb90d in clone () from /lib64/libc.so.6 Thread 11 (Thread 0x7f120e242700 (LWP 21120)): #0 0x00007f121a5b17bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007f121443aaa1 in wait (this=0x52e6820) at src/syncobject.hh:57 #2 ExecutorThread::run (this=0x52e6820) at src/scheduler.cc:134 #3 0x00007f121443b32d in launch_executor_thread (arg=0x52e6820) at src/scheduler.cc:34 #4 0x00007f121a5ad851 in start_thread () from /lib64/libpthread.so.0 #5 0x00007f121a2fb90d in clone () from /lib64/libc.so.6 Thread 10 (Thread 0x7f120d841700 (LWP 21121)): #0 0x00007f121a5b17bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007f1214410d6f in wait (this=0x5214000) at src/syncobject.hh:57 #2 wait (this=0x5214000) at src/syncobject.hh:73 #3 wait (this=0x5214000) at src/tapconnmap.hh:169 #4 EventuallyPersistentEngine::notifyPendingConnections (this=0x5214000) at src/ep_engine.cc:3379 #5 0x00007f1214410e53 in EvpNotifyPendingConns (arg=0x5214000) at src/ep_engine.cc:1153 #6 0x00007f121a5ad851 in start_thread () from /lib64/libpthread.so.0 #7 0x00007f121a2fb90d in clone () from /lib64/libc.so.6 Thread 9 (Thread 0x7f120ce40700 (LWP 21122)): #0 0x00007f121a5b17bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007f12143f45e8 in wait (this=0x5208090, d=...) at src/syncobject.hh:57 #2 IdleTask::run (this=0x5208090, d=...) at src/dispatcher.cc:342 #3 0x00007f12143f714a in Dispatcher::run (this=0x5254c40) at src/dispatcher.cc:184 #4 0x00007f12143f790d in launch_dispatcher_thread (arg=) at src/dispatcher.cc:28 #5 0x00007f121a5ad851 in start_thread () from /lib64/libpthread.so.0 #6 0x00007f121a2fb90d in clone () from /lib64/libc.so.6 Thread 8 (Thread 0x7f120c43f700 (LWP 21123)): #0 HashTable::visit (this=0x59c8c08, visitor=...) at src/stored-value.cc:392 #1 0x00007f12143fae02 in VBCBAdaptor::callback (this=0x16191290, d=..., t=...) at src/ep.cc:2482 #2 0x00007f12143f714a in Dispatcher::run (this=0x5254a80) at src/dispatcher.cc:184 #3 0x00007f12143f790d in launch_dispatcher_thread (arg=) at src/dispatcher.cc:28 #4 0x00007f121a5ad851 in start_thread () from /lib64/libpthread.so.0 #5 0x00007f121a2fb90d in clone () from /lib64/libc.so.6 Thread 7 (Thread 0x7f120ba3e700 (LWP 21240)): #0 0x00007f121a5b17bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007f1214410d6f in wait (this=0x5215200) at src/syncobject.hh:57 #2 wait (this=0x5215200) at src/syncobject.hh:73 #3 wait (this=0x5215200) at src/tapconnmap.hh:169 #4 EventuallyPersistentEngine::notifyPendingConnections (this=0x5215200) at src/ep_engine.cc:3379 #5 0x00007f1214410e53 in EvpNotifyPendingConns (arg=0x5215200) at src/ep_engine.cc:1153 #6 0x00007f121a5ad851 in start_thread () from /lib64/libpthread.so.0 #7 0x00007f121a2fb90d in clone () from /lib64/libc.so.6 Thread 6 (Thread 0x7f120b03d700 (LWP 21241)): #0 0x00007f121a5b17bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007f12143f45e8 in wait (this=0x5209950, d=...) at src/syncobject.hh:57 #2 IdleTask::run (this=0x5209950, d=...) at src/dispatcher.cc:342 #3 0x00007f12143f714a in Dispatcher::run (this=0x647a700) at src/dispatcher.cc:184 #4 0x00007f12143f790d in launch_dispatcher_thread (arg=) at src/dispatcher.cc:28 #5 0x00007f121a5ad851 in start_thread () from /lib64/libpthread.so.0 #6 0x00007f121a2fb90d in clone () from /lib64/libc.so.6 Thread 5 (Thread 0x7f120a63c700 (LWP 21242)): #0 0x00007f121a5b17bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007f12143f45e8 in wait (this=0x52098c0, d=...) at src/syncobject.hh:57 #2 IdleTask::run (this=0x52098c0, d=...) at src/dispatcher.cc:342 #3 0x00007f12143f714a in Dispatcher::run (this=0x647a540) at src/dispatcher.cc:184 #4 0x00007f12143f790d in launch_dispatcher_thread (arg=) at src/dispatcher.cc:28 #5 0x00007f121a5ad851 in start_thread () from /lib64/libpthread.so.0 #6 0x00007f121a2fb90d in clone () from /lib64/libc.so.6 Thread 4 (Thread 0x7f1209c3b700 (LWP 21443)): #0 0x00007f121a5b17bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007f1214410d6f in wait (this=0x5214900) at src/syncobject.hh:57 #2 wait (this=0x5214900) at src/syncobject.hh:73 #3 wait (this=0x5214900) at src/tapconnmap.hh:169 #4 EventuallyPersistentEngine::notifyPendingConnections (this=0x5214900) at src/ep_engine.cc:3379 #5 0x00007f1214410e53 in EvpNotifyPendingConns (arg=0x5214900) at src/ep_engine.cc:1153 #6 0x00007f121a5ad851 in start_thread () from /lib64/libpthread.so.0 #7 0x00007f121a2fb90d in clone () from /lib64/libc.so.6 Thread 3 (Thread 0x7f120923a700 (LWP 21444)): #0 0x00007f121a5b17bb in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007f12143f45e8 in wait (this=0x648d5f0, d=...) at src/syncobject.hh:57 #2 IdleTask::run (this=0x648d5f0, d=...) at src/dispatcher.cc:342 #3 0x00007f12143f714a in Dispatcher::run (this=0x647b500) at src/dispatcher.cc:184 #4 0x00007f12143f790d in launch_dispatcher_thread (arg=) at src/dispatcher.cc:28 #5 0x00007f121a5ad851 in start_thread () from /lib64/libpthread.so.0 #6 0x00007f121a2fb90d in clone () from /lib64/libc.so.6 Thread 2 (Thread 0x7f1208839700 (LWP 21445)): #0 PagingVisitor::visit (this=0x65b64370, v=0xa8dbd810) at src/item_pager.cc:45 #1 0x00007f121443e6ad in HashTable::visit (this=0x76b2c08, visitor=...) at src/stored-value.cc:397 #2 0x00007f12143fae02 in VBCBAdaptor::callback (this=0x136b3170, d=..., t=...) at src/ep.cc:2482 #3 0x00007f12143f714a in Dispatcher::run (this=0x647b340) at src/dispatcher.cc:184 #4 0x00007f12143f790d in launch_dispatcher_thread (arg=) at src/dispatcher.cc:28 #5 0x00007f121a5ad851 in start_thread () from /lib64/libpthread.so.0 #6 0x00007f121a2fb90d in clone () from /lib64/libc.so.6 Thread 1 (Thread 0x7f121b6fa720 (LWP 11345)): #0 0x00007f121a2fbf03 in epoll_wait () from /lib64/libc.so.6 #1 0x00007f121b0bf576 in epoll_dispatch (base=0x5218000, tv=) at epoll.c:404 #2 0x00007f121b0aae44 in event_base_loop (base=0x5218000, flags=) at event.c:1558 #3 0x00000000004097d6 in main (argc=, argv=) at daemon/memcached.c:7926 Missing separate debuginfos, use: debuginfo-install couchbase-server-2.0.2-789.x86_64 (gdb) quit A debugging session is active. Inferior 1 [process 11345] will be detached. Quit anyway? (y or n) [answered Y; input not from terminal] Detaching from program: /opt/couchbase/bin/memcached, process 11345