osd/OSD.cc: 5534: FAILED assert(pending_ops > 0)

[Martin Mailand <martin@tuxadero.com>]

Hi,
today one of my ods died, the log is.

sd/OSD.cc: In function 'void OSD::dequeue_op(PG*)', in thread '7faeb6139700'
osd/OSD.cc: 5534: FAILED assert(pending_ops > 0)
  ceph version 0.38 (commit:b600ec2ac7c0f2e508720f8e8bb87c3db15509b9)
  1: (OSD::dequeue_op(PG*)+0x4bb) [0x55a4db]
  2: (ThreadPool::worker()+0x6e6) [0x5b7b16]
  3: (ThreadPool::WorkThread::entry()+0xd) [0x57398d]
  4: (()+0x6d8c) [0x7faec4d12d8c]
  5: (clone()+0x6d) [0x7faec355404d]
  ceph version 0.38 (commit:b600ec2ac7c0f2e508720f8e8bb87c3db15509b9)
  1: (OSD::dequeue_op(PG*)+0x4bb) [0x55a4db]
  2: (ThreadPool::worker()+0x6e6) [0x5b7b16]
  3: (ThreadPool::WorkThread::entry()+0xd) [0x57398d]
  4: (()+0x6d8c) [0x7faec4d12d8c]
  5: (clone()+0x6d) [0x7faec355404d]
*** Caught signal (Aborted) **
  in thread 7faeb6139700
  ceph version 0.38 (commit:b600ec2ac7c0f2e508720f8e8bb87c3db15509b9)
  1: /usr/bin/ceph-osd() [0x5b8b52]
  2: (()+0xfc60) [0x7faec4d1bc60]
  3: (gsignal()+0x35) [0x7faec34a1d05]
  4: (abort()+0x186) [0x7faec34a5ab6]
  5: (__gnu_cxx::__verbose_terminate_handler()+0x11d) [0x7faec3d586dd]
  6: (()+0xb9926) [0x7faec3d56926]
  7: (()+0xb9953) [0x7faec3d56953]
  8: (()+0xb9a5e) [0x7faec3d56a5e]
  9: (ceph::__ceph_assert_fail(char const*, char const*, int, char 
const*)+0x396) [0x5bddb6]
  10: (OSD::dequeue_op(PG*)+0x4bb) [0x55a4db]
  11: (ThreadPool::worker()+0x6e6) [0x5b7b16]
  12: (ThreadPool::WorkThread::entry()+0xd) [0x57398d]
  13: (()+0x6d8c) [0x7faec4d12d8c]
  14: (clone()+0x6d) [0x7faec355404d]

Anything else needed to debug this?

-martin