memcached appears to be stuck during create bucket

1. Delete bucket, ( from an older test)
2. Create new bucket - The bucket is in pending state and memcached seems to be stuck.

stack from memcached process

[root@centos-64-x64 logs]# gdb -p 6018 --ex 't a a bt' < /dev/null
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 <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law. Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-redhat-linux-gnu".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
Attaching to process 6018
Reading symbols from /opt/couchbase/bin/memcached...done.
Reading symbols from /opt/couchbase/bin/../lib/memcached/libmcd_util.so.1.0.0...done.
Loaded symbols for /opt/couchbase/bin/../lib/memcached/libmcd_util.so.1.0.0
Reading symbols from /opt/couchbase/bin/../lib/libcbsasl.so.1.1.1...done.
Loaded symbols for /opt/couchbase/bin/../lib/libcbsasl.so.1.1.1
Reading symbols from /opt/couchbase/bin/../lib/libplatform.so.0.1.0...done.
Loaded symbols for /opt/couchbase/bin/../lib/libplatform.so.0.1.0
Reading symbols from /opt/couchbase/bin/../lib/libcJSON.so.1.0.0...done.
Loaded symbols for /opt/couchbase/bin/../lib/libcJSON.so.1.0.0
Reading symbols from /opt/couchbase/bin/../lib/libsnappy.so.1...done.
Loaded symbols for /opt/couchbase/bin/../lib/libsnappy.so.1
Reading symbols from /opt/couchbase/bin/../lib/libtcmalloc_minimal.so.4...done.
Loaded symbols for /opt/couchbase/bin/../lib/libtcmalloc_minimal.so.4
Reading symbols from /opt/couchbase/bin/../lib/libevent_core-2.0.so.5...done.
Loaded symbols for /opt/couchbase/bin/../lib/libevent_core-2.0.so.5
Reading symbols from /usr/lib64/libssl.so.6...(no debugging symbols found)...done.
Loaded symbols for /usr/lib64/libssl.so.6
Reading symbols from /usr/lib64/libcrypto.so.6...(no debugging symbols found)...done.
Loaded symbols for /usr/lib64/libcrypto.so.6
Reading symbols from /lib64/libpthread.so.0...(no debugging symbols found)...done.
[New LWP 6963]
[New LWP 6047]
[New LWP 6046]
[New LWP 6045]
[New LWP 6044]
[New LWP 6043]
[New LWP 6032]
[New LWP 6031]
[Thread debugging using libthread_db enabled]
Loaded symbols for /lib64/libpthread.so.0
Reading symbols from /lib64/libdl.so.2...(no debugging symbols found)...done.
Loaded symbols for /lib64/libdl.so.2
Reading symbols from /lib64/librt.so.1...(no debugging symbols found)...done.
Loaded symbols for /lib64/librt.so.1
Reading symbols from /lib64/libm.so.6...(no debugging symbols found)...done.
Loaded symbols for /lib64/libm.so.6
Reading symbols from /lib64/libc.so.6...(no debugging symbols found)...done.
Loaded symbols for /lib64/libc.so.6
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 /lib64/libgssapi_krb5.so.2...(no debugging symbols found)...done.
Loaded symbols for /lib64/libgssapi_krb5.so.2
Reading symbols from /lib64/libkrb5.so.3...(no debugging symbols found)...done.
Loaded symbols for /lib64/libkrb5.so.3
Reading symbols from /lib64/libcom_err.so.2...(no debugging symbols found)...done.
Loaded symbols for /lib64/libcom_err.so.2
Reading symbols from /lib64/libk5crypto.so.3...(no debugging symbols found)...done.
Loaded symbols for /lib64/libk5crypto.so.3
Reading symbols from /lib64/libz.so.1...(no debugging symbols found)...done.
Loaded symbols for /lib64/libz.so.1
Reading symbols from /lib64/ld-linux-x86-64.so.2...(no debugging symbols found)...done.
Loaded symbols for /lib64/ld-linux-x86-64.so.2
Reading symbols from /lib64/libkrb5support.so.0...(no debugging symbols found)...done.
Loaded symbols for /lib64/libkrb5support.so.0
Reading symbols from /lib64/libkeyutils.so.1...(no debugging symbols found)...done.
Loaded symbols for /lib64/libkeyutils.so.1
Reading symbols from /lib64/libresolv.so.2...(no debugging symbols found)...done.
Loaded symbols for /lib64/libresolv.so.2
Reading symbols from /lib64/libselinux.so.1...(no debugging symbols found)...done.
Loaded symbols for /lib64/libselinux.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...done.
Loaded symbols for /opt/couchbase/lib/libcouchstore.so
Reading symbols from /opt/couchbase/lib/libdirutils.so.0.1.0...done.
Loaded symbols for /opt/couchbase/lib/libdirutils.so.0.1.0
Reading symbols from /opt/couchbase/lib/libv8.so...done.
Loaded symbols for /opt/couchbase/lib/libv8.so
Reading symbols from /opt/couchbase/lib/libicui18n.so.44...done.
Loaded symbols for /opt/couchbase/lib/libicui18n.so.44
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
0x00007f1a04248163 in epoll_wait () from /lib64/libc.so.6

Thread 9 (Thread 0x7f1a0268a700 (LWP 6031)):
#0 0x00007f1a0423a74d in read () from /lib64/libc.so.6
#1 0x00007f1a041d0fe8 in _IO_new_file_underflow () from /lib64/libc.so.6
#2 0x00007f1a041d2aee in _IO_default_uflow_internal () from /lib64/libc.so.6
#3 0x00007f1a041c71ca in _IO_getline_info_internal () from /lib64/libc.so.6
#4 0x00007f1a041c6029 in fgets () from /lib64/libc.so.6
#5 0x00007f1a0268b8c1 in check_stdin_thread (arg=<value optimized out>) at /home/buildbot/centos-5-x64-300-builder/build/build/cmake/memcached/extensions/daemon/stdin_check.c:38
#6 0x00007f1a05bd2b7f in platform_thread_wrap (arg=0x14c4070) at /home/buildbot/centos-5-x64-300-builder/build/build/cmake/platform/src/cb_pthreads.c:19
#7 0x00007f1a04b8a9d1 in start_thread () from /lib64/libpthread.so.0
#8 0x00007f1a04247b6d in clone () from /lib64/libc.so.6

Thread 8 (Thread 0x7f1a01a86700 (LWP 6032)):
#0 0x00007f1a04b8e98e in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1 0x00007f1a05bd28fb in cb_cond_timedwait (cond=0x7f1a01c89800, mutex=0x7f1a01c897c0, ms=<value optimized out>) at /home/buildbot/centos-5-x64-300-builder/build/build/cmake/platform/src/cb_pthreads.c:156
#2 0x00007f1a01a88d4d in logger_thead_main (arg=0x1504b00) at /home/buildbot/centos-5-x64-300-builder/build/build/cmake/memcached/extensions/loggers/file_logger.c:363
#3 0x00007f1a05bd2b7f in platform_thread_wrap (arg=0x14c4080) at /home/buildbot/centos-5-x64-300-builder/build/build/cmake/platform/src/cb_pthreads.c:19
#4 0x00007f1a04b8a9d1 in start_thread () from /lib64/libpthread.so.0
#5 0x00007f1a04247b6d in clone () from /lib64/libc.so.6

Thread 7 (Thread 0x7f1a00e79700 (LWP 6043)):
#0 0x00007f1a04b91264 in __lll_lock_wait () from /lib64/libpthread.so.0
#1 0x00007f1a04b8c508 in _L_lock_854 () from /lib64/libpthread.so.0
#2 0x00007f1a04b8c3d7 in pthread_mutex_lock () from /lib64/libpthread.so.0
#3 0x00007f1a05bd2a09 in cb_mutex_enter (mutex=<value optimized out>) at /home/buildbot/centos-5-x64-300-builder/build/build/cmake/platform/src/cb_pthreads.c:85
#4 0x00007f1a00e7c880 in lock_engines (name=0x14cc0c8 "default") at /home/buildbot/centos-5-x64-300-builder/build/build/cmake/memcached/engines/bucket_engine/bucket_engine.c:330
#5 find_bucket (name=0x14cc0c8 "default") at /home/buildbot/centos-5-x64-300-builder/build/build/cmake/memcached/engines/bucket_engine/bucket_engine.c:671
#6 0x00007f1a00e7db72 in handle_connect (cookie=0xa7f5500, type=<value optimized out>, event_data=<value optimized out>, cb_data=0x7f1a010857c0) at /home/buildbot/centos-5-x64-300-builder/build/build/cmake/memcached/engines/bucket_engine/bucket_engine.c:1233
#7 0x000000000040baef in perform_callbacks (sfd=7033, parent_port=11209, init_state=0x413ac0 <conn_new_cmd>, event_flags=18, read_buffer_size=<value optimized out>, base=0xa850500, timeout=0x0) at /home/buildbot/centos-5-x64-300-builder/build/build/cmake/memcached/daemon/memcached.c:259
#8 conn_new (sfd=7033, parent_port=11209, init_state=0x413ac0 <conn_new_cmd>, event_flags=18, read_buffer_size=<value optimized out>, base=0xa850500, timeout=0x0) at /home/buildbot/centos-5-x64-300-builder/build/build/cmake/memcached/daemon/memcached.c:958
#9 0x00000000004168ba in thread_libevent_process (fd=<value optimized out>, which=<value optimized out>, arg=0x1525900) at /home/buildbot/centos-5-x64-300-builder/build/build/cmake/memcached/daemon/thread.c:320
#10 0x00007f1a05356d3c in event_process_active_single_queue (base=0xa850500, flags=<value optimized out>) at event.c:1308
#11 event_process_active (base=0xa850500, flags=<value optimized out>) at event.c:1375
#12 event_base_loop (base=0xa850500, flags=<value optimized out>) at event.c:1572
#13 0x00007f1a05bd2b7f in platform_thread_wrap (arg=0x14c4190) at /home/buildbot/centos-5-x64-300-builder/build/build/cmake/platform/src/cb_pthreads.c:19
#14 0x00007f1a04b8a9d1 in start_thread () from /lib64/libpthread.so.0
#15 0x00007f1a04247b6d in clone () from /lib64/libc.so.6

Thread 6 (Thread 0x7f1a00478700 (LWP 6044)):
#0 0x00007f1a04b91264 in __lll_lock_wait () from /lib64/libpthread.so.0
#1 0x00007f1a04b8c508 in _L_lock_854 () from /lib64/libpthread.so.0
#2 0x00007f1a04b8c3d7 in pthread_mutex_lock () from /lib64/libpthread.so.0
#3 0x00007f1a05bd2a09 in cb_mutex_enter (mutex=<value optimized out>) at /home/buildbot/centos-5-x64-300-builder/build/build/cmake/platform/src/cb_pthreads.c:85
#4 0x00007f1a00e7c880 in lock_engines (name=0x14cc0c8 "default") at /home/buildbot/centos-5-x64-300-builder/build/build/cmake/memcached/engines/bucket_engine/bucket_engine.c:330
#5 find_bucket (name=0x14cc0c8 "default") at /home/buildbot/centos-5-x64-300-builder/build/build/cmake/memcached/engines/bucket_engine/bucket_engine.c:671
#6 0x00007f1a00e7db72 in handle_connect (cookie=0xa7f5e00, type=<value optimized out>, event_data=<value optimized out>, cb_data=0x7f1a010857c0) at /home/buildbot/centos-5-x64-300-builder/build/build/cmake/memcached/engines/bucket_engine/bucket_engine.c:1233
#7 0x000000000040baef in perform_callbacks (sfd=9181, parent_port=11209, init_state=0x413ac0 <conn_new_cmd>, event_flags=18, read_buffer_size=<value optimized out>, base=0xa850280, timeout=0x0) at /home/buildbot/centos-5-x64-300-builder/build/build/cmake/memcached/daemon/memcached.c:259
#8 conn_new (sfd=9181, parent_port=11209, init_state=0x413ac0 <conn_new_cmd>, event_flags=18, read_buffer_size=<value optimized out>, base=0xa850280, timeout=0x0) at /home/buildbot/centos-5-x64-300-builder/build/build/cmake/memcached/daemon/memcached.c:958
#9 0x00000000004168ba in thread_libevent_process (fd=<value optimized out>, which=<value optimized out>, arg=0x15259f8) at /home/buildbot/centos-5-x64-300-builder/build/build/cmake/memcached/daemon/thread.c:320
#10 0x00007f1a05356d3c in event_process_active_single_queue (base=0xa850280, flags=<value optimized out>) at event.c:1308
#11 event_process_active (base=0xa850280, flags=<value optimized out>) at event.c:1375
#12 event_base_loop (base=0xa850280, flags=<value optimized out>) at event.c:1572
#13 0x00007f1a05bd2b7f in platform_thread_wrap (arg=0x14c4180) at /home/buildbot/centos-5-x64-300-builder/build/build/cmake/platform/src/cb_pthreads.c:19
#14 0x00007f1a04b8a9d1 in start_thread () from /lib64/libpthread.so.0
#15 0x00007f1a04247b6d in clone () from /lib64/libc.so.6

Thread 5 (Thread 0x7f19ffa77700 (LWP 6045)):
#0 0x00007f1a042405e3 in select () from /lib64/libc.so.6
#1 0x00007f19fd01bb3b in CouchNotifier::waitForReadable (this=0x5a180000, tryOnce=true) at /home/buildbot/centos-5-x64-300-builder/build/build/cmake/ep-engine/src/couch-kvstore/couch-notifier.cc:754
#2 0x00007f19fd01b6a3 in waitOnce (this=0x5a180000) at /home/buildbot/centos-5-x64-300-builder/build/build/cmake/ep-engine/src/couch-kvstore/couch-notifier.cc:809
#3 CouchNotifier::selectBucket (this=0x5a180000) at /home/buildbot/centos-5-x64-300-builder/build/build/cmake/ep-engine/src/couch-kvstore/couch-notifier.cc:858
#4 0x00007f19fd01cf42 in CouchNotifier::CouchNotifier (this=0x5a180000, st=<value optimized out>, config=<value optimized out>) at /home/buildbot/centos-5-x64-300-builder/build/build/cmake/ep-engine/src/couch-kvstore/couch-notifier.cc:189
#5 0x00007f19fd00a6ba in create (this=0x10723a80) at /home/buildbot/centos-5-x64-300-builder/build/build/cmake/ep-engine/src/couch-kvstore/couch-notifier.h:155
#6 CouchKVStore::open (this=0x10723a80) at /home/buildbot/centos-5-x64-300-builder/build/build/cmake/ep-engine/src/couch-kvstore/couch-kvstore.cc:1182
#7 0x00007f19fd00ba97 in CouchKVStore::CouchKVStore (this=0x10723a80, stats=<value optimized out>, config=<value optimized out>, read_only=<value optimized out>) at /home/buildbot/centos-5-x64-300-builder/build/build/cmake/ep-engine/src/couch-kvstore/couch-kvstore.cc:297
#8 0x00007f19fcff704b in KVStoreFactory::create (stats=..., config=..., read_only=false) at /home/buildbot/centos-5-x64-300-builder/build/build/cmake/ep-engine/src/kvstore.cc:37
#9 0x00007f19fcfacb61 in KVShard::KVShard (this=0x119fda00, id=<value optimized out>, store=...) at /home/buildbot/centos-5-x64-300-builder/build/build/cmake/ep-engine/src/kvshard.cc:36
#10 0x00007f19fcfeb877 in VBucketMap::VBucketMap (this=0xa838f70, config=<value optimized out>, store=...) at /home/buildbot/centos-5-x64-300-builder/build/build/cmake/ep-engine/src/vbucketmap.cc:38
#11 0x00007f19fcf71898 in EventuallyPersistentStore::EventuallyPersistentStore (this=0x7f19ffa35d20, theEngine=<value optimized out>) at /home/buildbot/centos-5-x64-300-builder/build/build/cmake/ep-engine/src/ep.cc:177
#12 0x00007f19fcf84af6 in EventuallyPersistentEngine::initialize (this=0xc995400, config=<value optimized out>) at /home/buildbot/centos-5-x64-300-builder/build/build/cmake/ep-engine/src/ep_engine.cc:1827
#13 0x00007f19fcf84ea6 in EvpInitialize (handle=0xc995400, config_str=0xa839623 "ht_size=3079;ht_locks=5;tap_noop_interval=20;max_txn_size=10000;max_size=1445986304;tap_keepalive=300;dbname=/opt/couchbase/var/lib/couchbase/data/default;allow_data_loss_during_shutdown=true;backend="...) at /home/buildbot/centos-5-x64-300-builder/build/build/cmake/ep-engine/src/ep_engine.cc:129
#14 0x00007f1a00e7ce7b in create_bucket_UNLOCKED (e=0x7f1a010857c0, bucket_name=0x14cc118 "default", path=0xa839600 "/opt/couchbase/lib/memcached/ep.so", config=0xa839623 "ht_size=3079;ht_locks=5;tap_noop_interval=20;max_txn_size=10000;max_size=1445986304;tap_keepalive=300;dbname=/opt/couchbase/var/lib/couchbase/data/default;allow_data_loss_during_shutdown=true;backend="..., e_out=0x0, msg=0x7f19ffa76730 "", msglen=1024) at /home/buildbot/centos-5-x64-300-builder/build/build/cmake/memcached/engines/bucket_engine/bucket_engine.c:813
#15 0x00007f1a00e7d0b6 in handle_create_bucket (handle=0x7f1a010857c0, cookie=0xa7f5b00, request=<value optimized out>, response=0x408db0 <binary_response_handler>) at /home/buildbot/centos-5-x64-300-builder/build/build/cmake/memcached/engines/bucket_engine/bucket_engine.c:2678
#16 0x00007f1a00e7e189 in bucket_unknown_command (handle=0x7f1a010857c0, cookie=0xa7f5b00, request=0xe851800, response=0x408db0 <binary_response_handler>) at /home/buildbot/centos-5-x64-300-builder/build/build/cmake/memcached/engines/bucket_engine/bucket_engine.c:3018
#17 0x000000000041569e in process_bin_unknown_packet (c=0xa7f5b00) at /home/buildbot/centos-5-x64-300-builder/build/build/cmake/memcached/daemon/memcached.c:2786
#18 process_bin_packet (c=0xa7f5b00) at /home/buildbot/centos-5-x64-300-builder/build/build/cmake/memcached/daemon/memcached.c:4531
#19 complete_nread (c=0xa7f5b00) at /home/buildbot/centos-5-x64-300-builder/build/build/cmake/memcached/daemon/memcached.c:5088
#20 conn_nread (c=0xa7f5b00) at /home/buildbot/centos-5-x64-300-builder/build/build/cmake/memcached/daemon/memcached.c:6259
#21 0x00000000004089ed in event_handler (fd=<value optimized out>, which=<value optimized out>, arg=0xa7f5b00) at /home/buildbot/centos-5-x64-300-builder/build/build/cmake/memcached/daemon/memcached.c:6532
#22 0x00007f1a05356d3c in event_process_active_single_queue (base=0xa850c80, flags=<value optimized out>) at event.c:1308
#23 event_process_active (base=0xa850c80, flags=<value optimized out>) at event.c:1375
#24 event_base_loop (base=0xa850c80, flags=<value optimized out>) at event.c:1572
#25 0x00007f1a05bd2b7f in platform_thread_wrap (arg=0x14c4170) at /home/buildbot/centos-5-x64-300-builder/build/build/cmake/platform/src/cb_pthreads.c:19
#26 0x00007f1a04b8a9d1 in start_thread () from /lib64/libpthread.so.0
#27 0x00007f1a04247b6d in clone () from /lib64/libc.so.6

Thread 4 (Thread 0x7f19ff076700 (LWP 6046)):
#0 0x00007f1a04b91264 in __lll_lock_wait () from /lib64/libpthread.so.0
#1 0x00007f1a04b8c508 in _L_lock_854 () from /lib64/libpthread.so.0
#2 0x00007f1a04b8c3d7 in pthread_mutex_lock () from /lib64/libpthread.so.0
#3 0x00007f1a05bd2a09 in cb_mutex_enter (mutex=<value optimized out>) at /home/buildbot/centos-5-x64-300-builder/build/build/cmake/platform/src/cb_pthreads.c:85
#4 0x00007f1a00e7c880 in lock_engines (name=0x14cc0c8 "default") at /home/buildbot/centos-5-x64-300-builder/build/build/cmake/memcached/engines/bucket_engine/bucket_engine.c:330
#5 find_bucket (name=0x14cc0c8 "default") at /home/buildbot/centos-5-x64-300-builder/build/build/cmake/memcached/engines/bucket_engine/bucket_engine.c:671
#6 0x00007f1a00e7db72 in handle_connect (cookie=0xa7f5200, type=<value optimized out>, event_data=<value optimized out>, cb_data=0x7f1a010857c0) at /home/buildbot/centos-5-x64-300-builder/build/build/cmake/memcached/engines/bucket_engine/bucket_engine.c:1233
#7 0x000000000040baef in perform_callbacks (sfd=5112, parent_port=11209, init_state=0x413ac0 <conn_new_cmd>, event_flags=18, read_buffer_size=<value optimized out>, base=0xa850a00, timeout=0x0) at /home/buildbot/centos-5-x64-300-builder/build/build/cmake/memcached/daemon/memcached.c:259
#8 conn_new (sfd=5112, parent_port=11209, init_state=0x413ac0 <conn_new_cmd>, event_flags=18, read_buffer_size=<value optimized out>, base=0xa850a00, timeout=0x0) at /home/buildbot/centos-5-x64-300-builder/build/build/cmake/memcached/daemon/memcached.c:958
#9 0x00000000004168ba in thread_libevent_process (fd=<value optimized out>, which=<value optimized out>, arg=0x1525be8) at /home/buildbot/centos-5-x64-300-builder/build/build/cmake/memcached/daemon/thread.c:320
#10 0x00007f1a05356d3c in event_process_active_single_queue (base=0xa850a00, flags=<value optimized out>) at event.c:1308
#11 event_process_active (base=0xa850a00, flags=<value optimized out>) at event.c:1375
#12 event_base_loop (base=0xa850a00, flags=<value optimized out>) at event.c:1572
#13 0x00007f1a05bd2b7f in platform_thread_wrap (arg=0x14c4160) at /home/buildbot/centos-5-x64-300-builder/build/build/cmake/platform/src/cb_pthreads.c:19
#14 0x00007f1a04b8a9d1 in start_thread () from /lib64/libpthread.so.0
#15 0x00007f1a04247b6d in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x7f19fe675700 (LWP 6047)):
#0 0x00007f1a04248163 in epoll_wait () from /lib64/libc.so.6
#1 0x00007f1a0536b376 in epoll_dispatch (base=0xa850780, tv=<value optimized out>) at epoll.c:404
#2 0x00007f1a05356c44 in event_base_loop (base=0xa850780, flags=<value optimized out>) at event.c:1558
#3 0x00007f1a05bd2b7f in platform_thread_wrap (arg=0x14c4150) at /home/buildbot/centos-5-x64-300-builder/build/build/cmake/platform/src/cb_pthreads.c:19
#4 0x00007f1a04b8a9d1 in start_thread () from /lib64/libpthread.so.0
#5 0x00007f1a04247b6d in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7f19fdc74700 (LWP 6963)):
#0 0x00007f1a0420bcdd in nanosleep () from /lib64/libc.so.6
#1 0x00007f1a04240e54 in usleep () from /lib64/libc.so.6
#2 0x00007f19fcfae5c5 in updateStatsThread (arg=<value optimized out>) at /home/buildbot/centos-5-x64-300-builder/build/build/cmake/ep-engine/src/memory_tracker.cc:36
#3 0x00007f1a05bd2b7f in platform_thread_wrap (arg=0x14c41b0) at /home/buildbot/centos-5-x64-300-builder/build/build/cmake/platform/src/cb_pthreads.c:19
#4 0x00007f1a04b8a9d1 in start_thread () from /lib64/libpthread.so.0
#5 0x00007f1a04247b6d in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7f1a063e97e0 (LWP 6018)):
#0 0x00007f1a04248163 in epoll_wait () from /lib64/libc.so.6
#1 0x00007f1a0536b376 in epoll_dispatch (base=0xa850000, tv=<value optimized out>) at epoll.c:404
#2 0x00007f1a05356c44 in event_base_loop (base=0xa850000, flags=<value optimized out>) at event.c:1558
#3 0x000000000040d3db in main (argc=<value optimized out>, argv=<value optimized out>) at /home/buildbot/centos-5-x64-300-builder/build/build/cmake/memcached/daemon/memcached.c:7988
Missing separate debuginfos, use: debuginfo-install couchbase-server-3.0.0-400.x86_64
(gdb) quit
A debugging session is active.

Inferior 1 [process 6018] will be detached.

Quit anyway? (y or n) [answered Y; input not from terminal]
Detaching from program: /opt/couchbase/bin/memcached, process 6018