Ceph

I have a single node cluster on burnupi60 updated each morning to the latest Master branch. After the update this morning and restart of ceph, the mon crashed with "FAILED assert(0 == "We are alone; this shouldn't have been scheduled!")

--- end dump of recent events ---
2013-01-11 08:25:06.054340 7ff7c8e36780 -1 ** Caught signal (Aborted) *
in thread 7ff7c8e36780

ceph version 0.56-209-g310112f (310112f702d14294e6ba48f8af41a306288cba65)
 1: /usr/bin/ceph-mon() [0x5461ca]
 2: (()+0xfcb0) [0x7ff7c8a1acb0]
 3: (gsignal()+0x35) [0x7ff7c710b425]
 4: (abort()+0x17b) [0x7ff7c710eb8b]
 5: (_gnu_cxx::_verbose_terminate_handler()+0x11d) [0x7ff7c7a5d69d]
 6: (()+0xb5846) [0x7ff7c7a5b846]
 7: (()+0xb5873) [0x7ff7c7a5b873]
 8: (()+0xb596e) [0x7ff7c7a5b96e]
 9: (ceph::__ceph_assert_fail(char const*, char const*, int, char const*)+0x1df) [0x5f5ebf]
 10: (Monitor::timecheck()+0xa30) [0x48d320]
 11: (Monitor::win_election(unsigned int, std::set<int, std::less<int>, std::allocator<int> >&, unsigned long)+0x31d) [0x48d6bd]
 12: (Monitor::win_standalone_election()+0x1af) [0x48d8af]
 13: (Monitor::bootstrap()+0xc52) [0x48e582]
 14: (Monitor::init()+0x11a) [0x490eba]
 15: (main()+0x143f) [0x47106f]
 16: (__libc_start_main()+0xed) [0x7ff7c70f676d]
 17: /usr/bin/ceph-mon() [0x4730b9]
 NOTE: a copy of the executable, or `objdump -rdS <executable>` is needed to interpret this.

--- begin dump of recent events ---
0> 2013-01-11 08:25:06.054340 7ff7c8e36780 -1 ** Caught signal (Aborted) *
in thread 7ff7c8e36780

ceph version 0.56-209-g310112f (310112f702d14294e6ba48f8af41a306288cba65)
 1: /usr/bin/ceph-mon() [0x5461ca]
 2: (()+0xfcb0) [0x7ff7c8a1acb0]
 3: (gsignal()+0x35) [0x7ff7c710b425]
 4: (abort()+0x17b) [0x7ff7c710eb8b]
 5: (_gnu_cxx::_verbose_terminate_handler()+0x11d) [0x7ff7c7a5d69d]
 6: (()+0xb5846) [0x7ff7c7a5b846]
 7: (()+0xb5873) [0x7ff7c7a5b873]
 8: (()+0xb596e) [0x7ff7c7a5b96e]
 9: (ceph::__ceph_assert_fail(char const*, char const*, int, char const*)+0x1df) [0x5f5ebf]
 10: (Monitor::timecheck()+0xa30) [0x48d320]
 11: (Monitor::win_election(unsigned int, std::set<int, std::less<int>, std::allocator<int> >&, unsigned long)+0x31d) [0x48d6bd]
 12: (Monitor::win_standalone_election()+0x1af) [0x48d8af]
 13: (Monitor::bootstrap()+0xc52) [0x48e582]
 14: (Monitor::init()+0x11a) [0x490eba]
 15: (main()+0x143f) [0x47106f]
 16: (__libc_start_main()+0xed) [0x7ff7c70f676d]
 17: /usr/bin/ceph-mon() [0x4730b9]
 NOTE: a copy of the executable, or `objdump -rdS <executable>` is needed to interpret this.

--- logging levels ---
0/ 5 none
0/ 1 lockdep
0/ 1 context
1/ 1 crush
1/ 5 mds
1/ 5 mds_balancer
1/ 5 mds_locker
1/ 5 mds_log
1/ 5 mds_log_expire
1/ 5 mds_migrator
0/ 1 buffer
0/ 1 timer
0/ 1 filer
0/ 1 striper
0/ 1 objecter
0/ 5 rados
0/ 5 rbd
0/ 5 journaler
0/ 5 objectcacher
0/ 5 client
0/ 5 osd
0/ 5 optracker
0/ 5 objclass
1/ 3 filestore
1/ 3 journal
0/ 5 ms
1/ 5 mon
0/10 monc
0/ 5 paxos
0/ 5 tp
1/ 5 auth
1/ 5 crypto
1/ 1 finisher
1/ 5 heartbeatmap
1/ 5 perfcounter
1/ 5 rgw
1/ 5 hadoop
1/ 5 javaclient
1/ 5 asok
1/ 1 throttle
-2/-2 (syslog threshold)
-1/-1 (stderr threshold)
max_recent 100000
max_new 1000
log_file /var/log/ceph/ceph-mon.a.log