Re: [PATCH] mm: fix page_mkclean_one (was: 2.6.19 file content corruption on ext3)



On Thu, 21 Dec 2006, Andrei Popa wrote:

On Wed, 2006-12-20 at 16:24 -0800, Linus Torvalds wrote:

Martin, Peter, Andrei, pls give it a try. (Martin and Andrei may be
talking about different bugs, so _both_ of your experiences definitely
matter here).

with http://lkml.org/lkml/diff/2006/12/20/204/1
I have corruption: Hash check on download completion found bad chunks,
consider using "safe_sync".

Gaah. Martin Michlmayr reported that it apparently fixes his ARM
corruption.

Now, admittedly I already suspected the issues might be different (if only
because of the UP vs SMP/PREEMPT case), but I really had my hopes up after
Martin's report, because if anything, _his_ issue might have been a
superset of your problem (while obviously any subtle SMP races you might
be seeing are definitely not an issue in his case).

Oh well. I think the ARM case is enough of a reason to apply those patches
(if it hadn't made any difference at all, I'd have waited until after
2.6.20), and we'll just have to continue on the SMP PREEMPT angle.

Linus
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