Ceph

ubuntu@teuthology:/var/lib/teuthworker/archive/teuthology-2014-04-08_02:30:14-rados-firefly-distro-basic-plana/178670

Thread 62 (Thread 0x7f7d49a02700 (LWP 18026)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x0000000000728e21 in Wait (mutex=..., this=0x7f7d499ffed0) at ./common/Cond.h:55
#2  ObjectStore::apply_transactions (this=<optimized out>, osr=0x0, tls=..., ondisk=<optimized out>) at os/ObjectStore.cc:92
#3  0x000000000067789e in ObjectStore::apply_transaction (this=0x3181000, t=..., ondisk=0x0) at ./os/ObjectStore.h:1084
#4  0x000000000063036c in OSD::check_osdmap_features (this=0x31b5000, fs=0x3181000) at osd/OSD.cc:5672
#5  0x000000000066b461 in OSD::handle_osd_map (this=0x31b5000, m=0x3302900) at osd/OSD.cc:5602
#6  0x000000000066e39b in OSD::_dispatch (this=0x31b5000, m=0x3302900) at osd/OSD.cc:4939
#7  0x000000000066ea9e in OSD::ms_dispatch (this=0x31b5000, m=0x3302900) at osd/OSD.cc:4726
#8  0x0000000000b0cd29 in ms_deliver_dispatch (m=0x3302900, this=0x3193000) at msg/Messenger.h:587
#9  DispatchQueue::entry (this=0x31930e8) at msg/DispatchQueue.cc:124
#10 0x0000000000a49b6d in DispatchQueue::DispatchThread::entry (this=<optimized out>) at msg/DispatchQueue.h:104
#11 0x00007f7d57a9be9a in start_thread (arg=0x7f7d49a02700) at pthread_create.c:308
#12 0x00007f7d5605c3fd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#13 0x0000000000000000 in ?? ()

vs

Thread 64 (Thread 0x7f7d4cb36700 (LWP 17971)):
#0  __lll_lock_wait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:132
#1  0x00007f7d57a9e065 in _L_lock_858 () from /lib/x86_64-linux-gnu/libpthread.so.0
#2  0x00007f7d57a9deba in __pthread_mutex_lock (mutex=0x31b5028) at pthread_mutex_lock.c:61
#3  0x0000000000a1fcd3 in Mutex::Lock (this=0x31b5018, no_lockdep=<optimized out>) at common/Mutex.cc:89
#4  0x00000000006a4152 in Locker (m=..., this=<synthetic pointer>) at ./common/Mutex.h:120
#5  C_CompleteSplits::finish (this=0x320fa80, r=<optimized out>) at osd/OSD.cc:7654
#6  0x000000000066ec59 in Context::complete (this=0x320fa80, r=<optimized out>) at ./include/Context.h:64
#7  0x000000000067638d in finish_contexts (cct=0x316f230, finished=..., result=0) at ./include/Context.h:120
#8  0x000000000066ec59 in Context::complete (this=0x333fc80, r=<optimized out>) at ./include/Context.h:64
#9  0x00000000009a6c30 in Finisher::finisher_thread_entry (this=0x3181c60) at common/Finisher.cc:56
#10 0x00007f7d57a9be9a in start_thread (arg=0x7f7d4cb36700) at pthread_create.c:308
#11 0x00007f7d5605c3fd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()