Hi all - After several months of worry-free operation, we received the following kernel messages about an xfs filesystem running under CentOS 6.6. The proximate causes appear to be "Internal error xfs_trans_cancel" and "Corruption of in-memory data detected. Shutting down filesystem". The filesystem is back up, mounted, appears to be working OK underlying a Splunk datastore. Does anyone have a suggestion on diagnosis or known problems? Many thanks.....Nick Geo Sep 18 20:35:15 gries kernel: XFS (dm-2): Internal error xfs_trans_cancel at line 1948 of file fs/xfs/xfs_trans.c. Caller 0xffffffffa01f1388 Sep 18 20:35:15 gries kernel: Sep 18 20:35:15 gries kernel: Pid: 24005, comm: splunkd Not tainted 2.6.32-504.8.1.el6.x86_64 #1 Sep 18 20:35:15 gries kernel: Call Trace: Sep 18 20:35:15 gries kernel: [<ffffffffa01d57bf>] ? xfs_error_report+0x3f/0x50 [xfs] Sep 18 20:35:15 gries kernel: [<ffffffffa01f1388>] ? xfs_rename+0x2d8/0x720 [xfs] Sep 18 20:35:15 gries kernel: [<ffffffffa01f2e55>] ? xfs_trans_cancel+0xf5/0x120 [xfs] Sep 18 20:35:15 gries kernel: [<ffffffffa01f1388>] ? xfs_rename+0x2d8/0x720 [xfs] Sep 18 20:35:15 gries kernel: [<ffffffff8114eef9>] ? __do_fault+0x469/0x530 Sep 18 20:35:15 gries kernel: [<ffffffffa02050d6>] ? xfs_vn_rename+0x66/0x70 [xfs] Sep 18 20:35:15 gries kernel: [<ffffffff8119d149>] ? vfs_rename+0x419/0x480 Sep 18 20:35:15 gries kernel: [<ffffffff8119fab9>] ? sys_renameat+0x309/0x3a0 Sep 18 20:35:15 gries kernel: [<ffffffff8128c295>] ? _atomic_dec_and_lock+0x55/0x80 Sep 18 20:35:15 gries kernel: [<ffffffff811b07e0>] ? mntput_no_expire+0x30/0x110 Sep 18 20:35:15 gries kernel: [<ffffffff810e5c87>] ? audit_syscall_entry+0x1d7/0x200 Sep 18 20:35:15 gries kernel: [<ffffffff8119fb6b>] ? sys_rename+0x1b/0x20 Sep 18 20:35:15 gries kernel: [<ffffffff8100b072>] ? system_call_fastpath+0x16/0x1b Sep 18 20:35:15 gries kernel: XFS (dm-2): xfs_do_force_shutdown(0x8) called from line 1949 of file fs/xfs/xfs_trans.c. Return address = 0xffffffffa01f2e6e Sep 18 20:35:15 gries kernel: XFS (dm-2): Corruption of in-memory data detected. Shutting down filesystem Sep 18 20:35:15 gries kernel: XFS (dm-2): Please umount the filesystem and rectify the problem(s) Sep 18 20:35:27 gries kernel: XFS (dm-2): xfs_log_force: error 5 returned.