This needs to be prioritized.
Confirmed, logs are in http://qa-proxy.ceph.com/teuthology/teuthology-2014-08-21_11:40:02-upgrade:dumpling-x:stress-split-master-distro-basic-vps/439533/
It's an osd.5 crash, coredump in ceph-osd.5.log.gz
903270073:2014-08-21 19:47:59.612165 7f59303eb700 -1 *** Caught signal (Aborted) **
903270147- in thread 7f59303eb700
903270171-
903270172- ceph version 0.84-372-gb0aa846 (b0aa846b3f81225a779de00100e15334fb8156b3)
903270247- 1: ceph-osd() [0x9a8a0a]
903270273- 2: (()+0xfcb0) [0x7f5949bd8cb0]
903270306- 3: (gsignal()+0x35) [0x7f59484c34f5]
903270344- 4: (abort()+0x17b) [0x7f59484c6c5b]
903270381- 5: (__gnu_cxx::__verbose_terminate_handler()+0x11d) [0x7f5948e1669d]
903270451- 6: (()+0xb5846) [0x7f5948e14846]
903270485- 7: (()+0xb5873) [0x7f5948e14873]
903270519- 8: (()+0xb596e) [0x7f5948e1496e]
903270553- 9: (ceph::__ceph_assert_fail(char const*, char const*, int, char const*)+0x1df) [0xa8cf7f]
903270645- 10: (PG::RecoveryState::Stray::react(PG::MLogRec const&)+0x8c8) [0x7881d8]
903270721- 11: (boost::statechart::simple_state<PG::RecoveryState::Stray, PG::RecoveryState::Started, boost::mpl::list<mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na>, (boost::statechart::history_mode)0>::react_impl(boost::statechart::event_base const&, void const*)+0x182) [0x7b6d32]
903271148- 12: (boost::statechart::state_machine<PG::RecoveryState::RecoveryMachine, PG::RecoveryState::Initial, std::allocator<void>, boost::statechart::null_exception_translator>::send_event(boost::statechart::event_base const&)+0x5b) [0x79a7bb]
903271386- 13: (boost::statechart::state_machine<PG::RecoveryState::RecoveryMachine, PG::RecoveryState::Initial, std::allocator<void>, boost::statechart::null_exception_translator>::process_event(boost::statechart::event_base const&)+0x11) [0x79ab11]
903271627- 14: (PG::handle_peering_event(std::tr1::shared_ptr<PG::CephPeeringEvt>, PG::RecoveryCtx*)+0x303) [0x752753]
903271736- 15: (OSD::process_peering_events(std::list<PG*, std::allocator<PG*> > const&, ThreadPool::TPHandle&)+0x2ce) [0x65720e]
903271856- 16: (OSD::PeeringWQ::_process(std::list<PG*, std::allocator<PG*> > const&, ThreadPool::TPHandle&)+0x12) [0x6a9982]
903271972- 17: (ThreadPool::worker(ThreadPool::WorkThread*)+0x4e6) [0xa7c6b6]
903272040- 18: (ThreadPool::WorkThread::entry()+0x10) [0xa7f760]
903272095- 19: (()+0x7e9a) [0x7f5949bd0e9a]
903272129- 20: (clone()+0x6d) [0x7f594858173d]