Ceph

(gdb) bt
#0  0x00007fa872484cc9 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56
#1  0x00007fa8724880d8 in __GI_abort () at abort.c:89
#2  0x00007fa872d8f535 in __gnu_cxx::__verbose_terminate_handler() () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#3  0x00007fa872d8d6d6 in ?? () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#4  0x00007fa872d8d703 in std::terminate() () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#5  0x00007fa872d8d922 in __cxa_throw () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#6  0x00007fa874ea7b1e in ?? () from /usr/lib/libtcmalloc.so.4
#7  0x00007fa874ec7a00 in tc_new () from /usr/lib/libtcmalloc.so.4
#8  0x00007fa872de9209 in std::string::_Rep::_S_create(unsigned long, unsigned long, std::allocator<char> const&) ()
   from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#9  0x00007fa872de9396 in std::string::_M_mutate(unsigned long, unsigned long, unsigned long) () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#10 0x00007fa872de993e in std::string::_M_replace_safe(unsigned long, unsigned long, char const*, unsigned long) ()
   from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#11 0x00007fa8759f55e3 in insert (__n=<optimized out>, __pos2=0, __str=..., __pos1=0, this=0x7fa8670b32a0) at /usr/include/c++/4.8/bits/basic_string.h:1259
#12 insert (__str=..., __pos1=0, this=0x7fa8670b32a0) at /usr/include/c++/4.8/bits/basic_string.h:1234
#13 operator+<char, std::char_traits<char>, std::allocator<char> > (__rhs=<unknown type in /usr/lib/debug/usr/bin/ceph-osd, CU 0x365a54a, DIE 0x36ec369>, 
    __lhs=...) at /usr/include/c++/4.8/bits/basic_string.h:2438
#14 DBObjectMap::user_prefix (this=this@entry=0x7fa880fc6f80, header=...) at os/DBObjectMap.cc:209
#15 0x00007fa875a030c4 in DBObjectMap::set_keys (this=0x7fa880fc6f80, oid=..., set=..., spos=0x7fa8670b3760) at os/DBObjectMap.cc:453
#16 0x00007fa8759560c8 in FileStore::_omap_setkeys (this=this@entry=0x7fa880fc0000, cid=..., hoid=..., aset=..., spos=...) at os/FileStore.cc:5252
#17 0x00007fa87597f36b in FileStore::_do_transaction (this=this@entry=0x7fa880fc0000, t=..., op_seq=op_seq@entry=442, trans_num=trans_num@entry=0, 
    handle=handle@entry=0x7fa8670b4bb0) at os/FileStore.cc:2740
#18 0x00007fa8759856f4 in FileStore::_do_transactions (this=this@entry=0x7fa880fc0000, tls=..., op_seq=442, handle=handle@entry=0x7fa8670b4bb0)
    at os/FileStore.cc:2114
#19 0x00007fa8759858b9 in FileStore::_do_op (this=0x7fa880fc0000, osr=<optimized out>, handle=...) at os/FileStore.cc:1901
#20 0x00007fa875c2c5fe in ThreadPool::worker (this=0x7fa880fc0a78, wt=0x7fa8810c4a00) at common/WorkQueue.cc:128
#21 0x00007fa875c2d4e0 in ThreadPool::WorkThread::entry (this=<optimized out>) at common/WorkQueue.h:448
#22 0x00007fa874201182 in start_thread (arg=0x7fa8670b6700) at pthread_create.c:312
#23 0x00007fa87254847d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

/a/sage-2015-12-29_12:09:22-rados-master---basic-smithi/7575