Ceph » CephFS

End of log:

2011-07-14 09:05:57.848753 7f8f4608a700 mds2.inotable: project_alloc_id 0 to []/[]
./include/interval_set.h: In function 'T interval_set<T>::range_start() const [with T = inodeno_t]', in thread '0x7f8f4608a700'
./include/interval_set.h: 290: FAILED assert(!empty())
 ceph version 0.31 (commit:9019c6ce64053ad515a493e912e2e63ba9b8e278)
 1: /usr/bin/cmds() [0x49305e]
 2: (InoTable::project_alloc_id(inodeno_t)+0x408) [0x636728]
 3: (Server::prepare_new_inode(MDRequest*, CDir*, inodeno_t, unsigned int, ceph_file_layout*)+0x9cb) [0x4fba1b]
 4: (Server::handle_client_mkdir(MDRequest*)+0x2be) [0x50746e]
 5: (Server::dispatch_client_request(MDRequest*)+0x4eb) [0x5183cb]
 6: (MDCache::dispatch_request(MDRequest*)+0x41) [0x531571]
 7: (C_MDS_RetryRequest::finish(int)+0x11) [0x51d581]
 8: (finish_contexts(CephContext*, std::list<Context*, std::allocator<Context*> >&, int)+0xc2) [0x4ba4e2]
 9: (SimpleLock::finish_waiters(unsigned long, int)+0xad) [0x5c506d]
 10: (Locker::eval_gather(SimpleLock*, bool, bool*, std::list<Context*, std::allocator<Context*> >*)+0x126f) [0x5b34ef]
 11: (Locker::handle_file_lock(ScatterLock*, MLock*)+0xa02) [0x5b4232]
 12: (Locker::handle_lock(MLock*)+0x1c6) [0x5b5446]
 13: (MDS::handle_deferrable_message(Message*)+0x69f) [0x4a670f]
 14: (MDS::_dispatch(Message*)+0x15c3) [0x4b6fa3]
 15: (MDS::ms_dispatch(Message*)+0x57) [0x4b7617]
 16: (SimpleMessenger::dispatch_entry()+0x7bb) [0x69f0fb]
 17: (SimpleMessenger::DispatchThread::entry()+0x1c) [0x496e8c]
 18: (()+0x7d60) [0x7f8f48f4cd60]
 19: (clone()+0x6d) [0x7f8f47b7ae2d]

I looked at this some Friday; I'm afraid that without the entire log or the on-disk state there's little chance of figuring out what went wrong here. Will discuss with Sage, but otherwise I think I need to close this until somebody manages to reproduce.