On Tue, Apr 24, 2012 at 09:27:59AM +1000, Dave Chinner wrote: ... > So, yes, your hangs are definitely due to inode buffer RMW cycles > when trying to flush dirty inodes from the cache. I have a few > ideas on how to fix this - but I'm not sure whether a current TOT > solution will be easily back-portable. The simplest solution is a > readahead based solution - AIL pushing is async, and will cycle back > to inodes that it failed to flush the first time past, so triggering > readahead on the first pass might work just fine. Have you had time to look at this? (We got bitten by this again and I really don't want to go back to ext4.) Is there anything I can help with? Jeff. -- Evolution, n.: A hypothetical process whereby infinitely improbable events occur with alarming frequency, order arises from chaos, and no one is given credit. _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs
