Re: Bug Report: 2.4.22-pre5: BUG in page_alloc (fwd)

From: Stephan von Krawczynski (
Date: Mon Jul 21 2003 - 14:09:54 EST

On Mon, 21 Jul 2003 14:23:53 -0300 (BRT)
Marcelo Tosatti <> wrote:

> > > Hello Marcelo,
> > >
> > > have you seen anything in your tests? My box just froze again after 3
> > > days during NFS action. This was with pre6, I am switching over to pre7.
> >
> > I managed to freeze the pre7 box within these few hours. There was no nfs
> > involved, only tar-to-tape.
> You had NMI on, correct? Sysrq doesnt work, correct?

Yes, that's right.
> > I switched back to 2.4.21 to see if it is still stable. Is there a
> > possibility that the i/o-scheduler has another flaw somewhere (just like
> > during mount previously) ...
> It might be a problem in the IO scheduler, yes.
> Lets isolate the problems: If 2.4.21 doenst lockup, try 2.4.22-pre7
> without drivers/block/ll_rw_blk{.c,.h} changes.

I am pretty confident that 2.4.21 does not lock up, I tested it long time ago
and to my memory it had no problems. Anyway I re-check to make sure the box is
still ok.

Can you send me patches off-list to reverse from -pre7. Just to make sure we
are talking of the same stuff...


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