Re: Stress testing 2.4.14-pre6

Linus Torvalds (torvalds@transmeta.com)
Thu, 1 Nov 2001 16:24:09 +0000 (UTC)


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
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/