Hey folks,
I am trying to enable OpenStack to use RBD as image backend:
For some reason, nova-compute segfaults due to librados crash:
./log/SubsystemMap.h: In function 'bool ceph::log::SubsystemMap::should_gather(unsigned int, int)' thread 7f1b477fe700 time 2014-10-24 03:20:17.382769
./log/SubsystemMap.h: 62: FAILED assert(sub < m_subsys.size())
ceph version 0.80.5 (38b73c67d375a2552d8ed67843c8a65c2c0feba6)
1: (()+0x42785) [0x7f1b4c4db785]
2: (ObjectCacher::flusher_entry()+0xfda) [0x7f1b4c53759a]
3: (ObjectCacher::FlusherThread::entry()+0xd) [0x7f1b4c54a16d]
4: (()+0x6b50) [0x7f1b6ea93b50]
5: (clone()+0x6d) [0x7f1b6df3e0ed]
NOTE: a copy of the executable, or `objdump -rdS <executable>` is needed to interpret this.
terminate called after throwing an instance of 'ceph::FailedAssertion'
Aborted
./log/SubsystemMap.h: 62: FAILED assert(sub < m_subsys.size())
ceph version 0.80.5 (38b73c67d375a2552d8ed67843c8a65c2c0feba6)
1: (()+0x42785) [0x7f1b4c4db785]
2: (ObjectCacher::flusher_entry()+0xfda) [0x7f1b4c53759a]
3: (ObjectCacher::FlusherThread::entry()+0xd) [0x7f1b4c54a16d]
4: (()+0x6b50) [0x7f1b6ea93b50]
5: (clone()+0x6d) [0x7f1b6df3e0ed]
NOTE: a copy of the executable, or `objdump -rdS <executable>` is needed to interpret this.
terminate called after throwing an instance of 'ceph::FailedAssertion'
Aborted
I feel that there is some concurrency issue, since this sometimes happen before and sometimes after this line:
Any idea what are the potential causes of the crash?
Thanks.
-Simon
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