On Tue, Jun 26, 2012 at 11:00:52AM -0500, tinguely@xxxxxxx wrote: > xfs_wait_buftarg() does not wait for the completion of the write of the uncached > superblock. This write can race with the shutdown of the log and cause a panic if the > write does not win the race. Per Dave's suggestion, turn the final write of the > superblock into a syncronous write. Not quite what I suggested. You removed the transaction that logs the changes first. That needs to stay, otherwise we are writing unlogged changes to the superblock, and have the possibility of a crash before the unmount record is written causing log recovery to modify the superblock and not have all the correct changes in the log. So it first needs to log the changes (synchronously), then write the changes (synchronously). Cheers, Dave. -- Dave Chinner david@xxxxxxxxxxxxx _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs