ceph version 0.67.4 (ad85b8bfafea6232d64cb7ba76a8b6e8252fa0c7)
 1: /usr/bin/ceph-mds() [0x977dea]
 2: (()+0xfcb0) [0x7f3e06d4fcb0]
 3: (gsignal()+0x35) [0x7f3e05911425]
 4: (abort()+0x17b) [0x7f3e05914b8b]
 5: (__gnu_cxx::__verbose_terminate_handler()+0x11d) [0x7f3e0626469d]
 6: (()+0xb5846) [0x7f3e06262846]
 7: (()+0xb5873) [0x7f3e06262873]
 8: (()+0xb596e) [0x7f3e0626296e]
 9: (ceph::__ceph_assert_fail(char const*, char const*, int, char const*)+0x1df) [0x88041f]
 10: (MDSTable::load_2(int, ceph::buffer::list&, Context*)+0x431) [0x750c81]
 11: (Objecter::handle_osd_op_reply(MOSDOpReply*)+0xe4b) [0x7a80ab]
 12: (MDS::handle_core_message(Message*)+0x588) [0x580868]
 13: (MDS::_dispatch(Message*)+0x2f) [0x580fcf]
 14: (MDS::ms_dispatch(Message*)+0x1d3) [0x582a63]
 15: (DispatchQueue::entry()+0x549) [0x946aa9]
 16: (DispatchQueue::DispatchThread::entry()+0xd) [0x86b02d]
 17: (()+0x7e9a) [0x7f3e06d47e9a]
 18: (clone()+0x6d) [0x7f3e059cf3fd]
 NOTE: a copy of the executable, or `objdump -rdS <executable>` is needed to interpret this.