Ceph

In the 11/16 nightlies, there were numerous coredumps in:
sepia72 mon.{f,l,o,r,u}.log
sepia74 mon.q.log

All were quite similar to:

2011-11-16 00:53:50.194419 7f1b46b5e700 log [INF] : mon.f calling new monitor election
mon/Paxos.cc: In function 'void Paxos::handle_begin(MMonPaxos*)', in thread '7f1b46b5e700'
mon/Paxos.cc: 402: FAILED assert(begin->last_committed == last_committed)
ceph version 0.38-181-g2e19550 (2e195500b5d3a8ab8512bcf2a219a6b7ff922c97)
1: (Paxos::handle_begin(MMonPaxos*)+0x6e8) [0x49fa68]
2: (Paxos::dispatch(PaxosServiceMessage*)+0x3c3) [0x4a2b53]
3: (Monitor::_ms_dispatch(Message*)+0x187b) [0x481b9b]
4: (Monitor::ms_dispatch(Message*)+0xbd) [0x49634d]
5: (SimpleMessenger::dispatch_entry()+0x99a) [0x582ffa]
6: (SimpleMessenger::DispatchThread::entry()+0x2c) [0x4620cc]
7: (Thread::_entry_func(void*)+0x12) [0x57d4a2]
8: (()+0x7971) [0x7f1b4a5d3971]
9: (clone()+0x6d) [0x7f1b48e6292d]