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Date: Thu, 1 Nov 2001 13:41:12 -0200 (BRST)
From: Marcelo Tosatti <marcelo@conectiva.com.br>
To: Linus Torvalds <torvalds@transmeta.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Stress testing 2.4.14-pre6
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On Thu, 1 Nov 2001, Linus Torvalds wrote:

> In article <3BE073B6.BDCB3D56@redhat.com>,
> Bob Matthews  <bmatthews@redhat.com> wrote:
> >Hi Linus,
> >
> >We've been doing some stress-testing on 2.4.14-pre6 and have encountered
> >a couple of problems.  The platform is an 8xPIII with 8G RAM and 32G
> >swap.  After running Cerberus for about 3 hours, the machine hung
> >completely.  I was not able to switch VC's.
> 
> There is some race somewhere - I've found one interrupt race (that
> actually seems to exist in the 2.2.x VM too, but is probably _much_
> harder to trigger where an interrupt at _just_ the right time will
> corrupt the per-process local page list.  That looks so unlikely that I
> doubt that is it, but I'm looking for others (the irq one wasn't even a
> SMP race - it's on UP too, surprise surprise). 
> 
> Working on it, in other words.

Would you mind to describe this race? 

Thanks


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