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SubjectRe: 2.6.9-mm1 oops
On Mon, Oct 25 2004, Jens Axboe wrote:
> On Mon, Oct 25 2004, Lorenzo Allegrucci wrote:
> > On Sunday 24 October 2004 22:02, Lorenzo Allegrucci wrote:
> > > On Sunday 24 October 2004 16:20, Lorenzo Allegrucci wrote:
> > > > On Sunday 24 October 2004 14:30, Jens Axboe wrote:
> > > > > On Sat, Oct 23 2004, Lorenzo Allegrucci wrote:
> > > > > >
> > > > > > 100% reproducible with elevator=cfq
> > > > >
> > > > > but not with the other io schedulers?
> > > >
> > > > No, now I can reproduce it with the anticipatory scheduler too.
> > >
> > > I've just got the same oops using XFS instead of ext3.
> >
> > And disabling CONFIG_PREEMPT_BKL doesn't help.
>
> I'll try to reproduce it here now.

Something fishy is going on here - it seems to happen in the if (ret)
cleanup in direct_io_worker(), last error was -EFAULT for this case. And
reverting the dio eof patch 'fixes' the bug, I don't know why yet.

--
Jens Axboe

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