Ceph

Assertion: osd/ReplicatedPG.cc: 7573: FAILED assert(!pg_log.get_log().empty())
ceph version 0.67.11-42-g103c6a0 (103c6a0e36ff3428b5a14ad9594f1ea71a3a7e21)
1: (ReplicatedPG::update_range(PG::BackfillInterval*, ThreadPool::TPHandle&)+0xb83) [0x5d8593]
2: (ReplicatedPG::recover_backfill(int, ThreadPool::TPHandle&)+0x2f0) [0x612d40]
3: (ReplicatedPG::start_recovery_ops(int, PG::RecoveryCtx*, ThreadPool::TPHandle&)+0x830) [0x618610]
4: (OSD::do_recovery(PG*, ThreadPool::TPHandle&)+0x1b8) [0x6813a8]
5: (OSD::RecoveryWQ::_process(PG*, ThreadPool::TPHandle&)+0x11) [0x6c1741]
6: (ThreadPool::worker(ThreadPool::WorkThread*)+0x4e6) [0x8b8076]
7: (ThreadPool::WorkThread::entry()+0x10) [0x8ba090]
8: (()+0x7e9a) [0x7f73d8ac1e9a]
9: (clone()+0x6d) [0x7f73d6dca31d]
['611779']

almost certainly a result of 103c6a0e36ff3428b5a14ad9594f1ea71a3a7e21 merge.
ubuntu@teuthology:/a/teuthology-2014-11-20_19:13:02-upgrade:dumpling-x-firefly-distro-basic-vps/611779/remote