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Date: Mon, 21 Jul 2003 21:09:54 +0200
From: Stephan von Krawczynski <skraw@ithnet.com>
To: Marcelo Tosatti <marcelo@conectiva.com.br>
Cc: mason@suse.com, andrea@suse.de, riel@redhat.com,
       linux-kernel@vger.kernel.org, maillist@jg555.com
Subject: Re: Bug Report: 2.4.22-pre5: BUG in page_alloc (fwd)
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On Mon, 21 Jul 2003 14:23:53 -0300 (BRT)
Marcelo Tosatti <marcelo@conectiva.com.br> 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...

Regards,
Stephan