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From: torvalds@transmeta.com (Linus Torvalds)
To: linux-kernel@vger.kernel.org
Subject: Re: Stress testing 2.4.14-pre6
Date: Thu, 1 Nov 2001 16:24:09 +0000 (UTC)	[thread overview]
Message-ID: <9rrsv9$b9l$1@penguin.transmeta.com> (raw)
In-Reply-To: <3BE073B6.BDCB3D56@redhat.com>

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.

		Linus

  parent reply	other threads:[~2001-11-01 16:27 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-10-31 21:57 Stress testing 2.4.14-pre6 Bob Matthews
2001-11-01  0:40 ` Alan Cox
2001-11-01 16:24 ` Linus Torvalds [this message]
2001-11-01 15:41   ` Marcelo Tosatti
2001-11-01 17:08     ` Linus Torvalds
2001-11-01 17:18       ` Jeff Garzik
2001-11-01 17:29         ` Arjan van de Ven
2001-11-01 18:15         ` Jens Axboe
2001-11-01 18:20           ` Jeff Garzik

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