I'm receiving this assertion failure using the latest unstable tree built as a deb file. Thanks, Noah --- node1# /usr/bin/cosd -c /etc/ceph/ceph.conf --monmap /tmp/monmap.5741 -i 0 --mkfs --osd-data /data/osd0 ** WARNING: Ceph is still under heavy development, and is only suitable for ** ** testing and review. Do not trust it with important data. ** ** WARNING: 'filestore btrfs snap' is enabled (for safe transactions, rollback), but btrfs does not support the SNAP_CREATE_ASYNC ioctl (added in Linux 2.6.37). Expect slow btrfs sync/commit performance. ** WARNING: No osd journal is configured: write latency may be high. If you will not be using an osd journal, write latency may be relatively high. It can be reduced somewhat by lowering filestore_max_sync_interval, but lower values mean lower write throughput, especially with spinning disks. ./common/Mutex.h: In function 'void Mutex::Lock(bool)': ./common/Mutex.h:118: FAILED assert(r == 0) ceph version 0.25~rc (commit:63fab458f625f953f3f98d94b4cb56cf3293eab8) 1: (JournalingObjectStore::op_journal_transactions(std::list<ObjectStore::Transaction*, std::allocator<ObjectStore::Transaction*> >&, unsigned long, Context*)+0x10d) [0x5725cd] 2: (FileStore::queue_transactions(ObjectStore::Sequencer*, std::list<ObjectStore::Transaction*, std::allocator<ObjectStore::Transaction*> >&, Context*, Context*, Context*)+0x9b) [0x56a2cb] 3: (FileStore::apply_transactions(std::list<ObjectStore::Transaction*, std::allocator<ObjectStore::Transaction*> >&, Context*)+0x168) [0x555fc8] 4: (FileStore::apply_transaction(ObjectStore::Transaction&, Context*)+0x4e) [0x55317e] 5: (OSD::mkfs(char const*, char const*, ceph_fsid, int)+0x9e5) [0x4cbfe5] 6: (main()+0xfd6) [0x4538d6] 7: (__libc_start_main()+0xfe) [0x7fa44624dd8e] 8: /usr/bin/cosd() [0x452729] -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html