On Tue, May 21, 2002 at 10:48:03AM +0100, Stephen C. Tweedie wrote: > > My ext3 filesystem is on a raid5 array, with the journal on > > a separate raid1 array. (data=journal mode). > > Not a configuration I've tested, but I can set up a box here with that > config and see if I can reproduce any problems. > > > I get quite a few messages in the logs which say: > > > > May 21 14:20:06 glass kernel: raid5: multiple 1 requests for sector 7540536 I just realised, this implies that it's the main filesystem (ie, NOT the journal) which is seeing this. That's something I can't explain, unless something is going wrong with the checkpoint/forget logic on file deletes. Now, there _was_ a change in that code in the latest diffs, but that only affected multiple reuse of the same buffer_head, not different buffer_heads for the same disk block. I'm currently running fs stress testing on a 3-disk soft raid5 data=journal filesystem, with the journal on an external nvram disk, to see if I can reproduce this. Cheers, Stephen
