Ceph » rbd

Description of problem:
-----------------------
Hosted a VM using a Qemu client on a 10GB image created on primary rbd client, as the image started synchronizing rbd-mirror daemon crashed

Version-Release number of selected component (if applicable):
ceph v10.2.0.1
rbd-mirror-10.2.0-1.el7cp.x86_64

Steps to Reproduce:
1. Configured rbd-mirror with pool mode mirroring
2. Created few images from primary rbd client
3. mapped one of the image on a qemu client and hosted a VM
4. As installation of VM was in-progress , Verify the sync status on secondary rbd client.

Actual results:
Sync failed and there was a crash

Expected results:
sync should have been successful

Full bt :- http://pastebin.test.redhat.com/371778

librbd/journal/Replay.cc: In function 'librbd::AioCompletion* librbd::journal::Replay<ImageCtxT>::create_aio_modify_completion(Context*, Context*, bool*) [with ImageCtxT = librbd::ImageCtx]' thread 7f2a6dffb700 time 2016-05-05 21:08:09.712560
    librbd/journal/Replay.cc: 774: FAILED assert(m_on_aio_ready == nullptr)
     ceph version 10.2.0-1.el7cp (3a9fba20ec743699b69bd0181dd6c54dc01c64b9)
     1: (ceph::__ceph_assert_fail(char const*, char const*, int, char const*)+0x85) [0x7f2af5b40645]
     2: (librbd::journal::Replay<librbd::ImageCtx>::create_aio_modify_completion(Context*, Context*, bool*)+0x5b0) [0x7f2af5a23370]
     3: (librbd::journal::Replay<librbd::ImageCtx>::handle_event(librbd::journal::AioWriteEvent const&, Context*, Context*)+0x98) [0x7f2af5a23f58]
     4: (librbd::journal::Replay<librbd::ImageCtx>::process(ceph::buffer::list::iterator*, Context*, Context*)+0x4d2) [0x7f2af5a28d72]
     5: (rbd::mirror::ImageReplayer<librbd::ImageCtx>::process_entry()+0xfd) [0x7f2af59729cd]
     6: (rbd::mirror::ImageReplayer<librbd::ImageCtx>::handle_replay_ready()+0x24d) [0x7f2af597369d]
     7: (rbd::mirror::ImageReplayer<librbd::ImageCtx>::handle_process_entry_ready(int)+0x7a) [0x7f2af596d75a]
     8: (Context::complete(int)+0x9) [0x7f2af596b269]
     9: (ThreadPool::worker(ThreadPool::WorkThread*)+0xa7e) [0x7f2af5b3192e]
     10: (ThreadPool::WorkThread::entry()+0x10) [0x7f2af5b32800]
     11: (()+0x7dc5) [0x7f2aeb07fdc5]
     12: (clone()+0x6d) [0x7f2ae9f6628d]