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SubjectRe: showstopper race condition in sync() ??? [2.1.119|120]
On Wed, 16 Sep 1998, Stephen C. Tweedie wrote:

>Could you find the "wchan" of the stalled process and look it up in
>System.map? The wchan is displayed in "ps -l" output, and will be

I guess it will be in wait_on_super().

I discovered a dquota bug in 2.0.34 and I brute fixed it
(ftp://e-mind.com/pub/linux/kernel-patches/quot-2.0.34-2.diff) some time
ago (the relevant discussion of the patch in this list). I am not sure if
the patch can rise fs corruption in unfortunately conditions (could be
right for 2.0 but sure not for 2.1 SMP). Maybe the right patch would be to
move the writing of the dquota file in a bh handler? The patch is reported
to fix the problem well for 2.0.36pre though (= not yet fs corruption ;-).

Andrea[s] Arcangeli


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