librbd bug?

[Wolfgang Hennerbichler <wolfgang.hennerbichler@risc-software.at>]

Hi,

I've a libvirt-VM that gets format 2 rbd-childs 'fed' by the superhost.
It crashed recently with this in the logs:

osdc/ObjectCacher.cc: In function 'void
ObjectCacher::bh_write_commit(int64_t, sobject_t, loff_t, uint64_t,
tid_t, int)' thread 7f0cab5fd700 time 2013-03-01 22:02:37.374410
osdc/ObjectCacher.cc: 834: FAILED assert(ob->last_commit_tid < tid)
 ceph version 0.56.3 (6eb7e15a4783b122e9b0c85ea9ba064145958aa5)
 1: (ObjectCacher::bh_write_commit(long, sobject_t, long, unsigned long,
unsigned long, int)+0xd68) [0x7f0d087cda28]
 2: (ObjectCacher::C_WriteCommit::finish(int)+0x6b) [0x7f0d087d460b]
 3: (Context::complete(int)+0xa) [0x7f0d0878c9fa]
 4: (librbd::C_Request::finish(int)+0x85) [0x7f0d087bc325]
 5: (Context::complete(int)+0xa) [0x7f0d0878c9fa]
 6: (librbd::rados_req_cb(void*, void*)+0x47) [0x7f0d087a1387]
 7: (librados::C_AioSafe::finish(int)+0x1d) [0x7f0d07b5834d]
 8: (Finisher::finisher_thread_entry()+0x1c0) [0x7f0d07bc20d0]
 9: (()+0x7e9a) [0x7f0d0546be9a]
 10: (clone()+0x6d) [0x7f0d05198cbd]
 NOTE: a copy of the executable, or `objdump -rdS <executable>` is
needed to interpret this.
terminate called after throwing an instance of 'ceph::FailedAssertion'

Any clue why that happened?

-- 
DI (FH) Wolfgang Hennerbichler
Software Development
Unit Advanced Computing Technologies
RISC Software GmbH
A company of the Johannes Kepler University Linz

IT-Center
Softwarepark 35
4232 Hagenberg
Austria

Phone: +43 7236 3343 245
Fax: +43 7236 3343 250
wolfgang.hennerbichler@risc-software.at
http://www.risc-software.at