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SubjectRe: 2.4.20: Proccess stuck in __lock_page ...
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On Wed, 28 May 2003 23:30, Carl-Daniel Hailfinger wrote:
> Con Kolivas wrote:
> > On Wed, 28 May 2003 23:08, Jens Axboe wrote:
> >>On Wed, May 28 2003, Carl-Daniel Hailfinger wrote:
> >>>Jens Axboe wrote:
> >>>>On Wed, May 28 2003, Marc-Christian Petersen wrote:
> >>>>>On Wednesday 28 May 2003 13:27, Andrew Morton wrote:
> >>>>>>Guys, you're the ones who can reproduce this. Please spend more time
> >>>>>>working out which chunk (or combination thereof) actually fixes the
> >>>>>>problem. If indeed any of them do.
> >>>>>
> >>>>>As I said, I will test it this evening. ATM I don't have time to
> >>>>>recompile and reboot. This evening I will test extensively, even on
> >>>>>SMP, SCSI, IDE and so on.
> >>>>
> >>>>May I ask how you are reproducing the bad results? I'm trying in vain
> >>>>here...
> >>>
> >>>Quoting Con Kolivas:
> >>>
> >>>dd if=/dev/zero of=dump bs=4096 count=512000
> >>
> >>already tried that, no go. on ide/scsi? what filesystem? how much ram?
> >>anything else running? smp/up?
> >
> > I'm using UP on IDE. I reproduce it easily on a P3 256Mb laptop with
> > 5400rpm drive, and less easily but still occurs on a P4 2.53 512Mb pc
> > with 2x7200rpm software raid 0 IDE drives. Even if the only thing you try
> > to do is move the mouse, the mouse will freeze for up to 30secs. When you
> > first start the write no disk activity happens for up to a few seconds,
> > then it will start writing madly and the machine will come to a
> > standstill for a variable length of time. Then it will come back to life
> > for a few seconds only to die again for a few seconds and so on till the
> > write is complete.
> >
> > Still testing combinations to see which is the best, but 1+2 seems better
> > than 3 alone as doing reads midstream in the write don't cause hangs. I
> > haven't seen zombie processes ever.
>
> Just curious - which compiler did you use?

For this latest testing gcc 3.2.2

The hangs predate this to a time when I was using 2.95.3 and getting the
hangs.

Con
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