From: Andrew Walrond <andrew@walrond.org>
To: linux-kernel@vger.kernel.org
Cc: Andrew Morton <akpm@osdl.org>, Linus Torvalds <torvalds@osdl.org>
Subject: Re: Q: why _less_ performance on machine with SMP then with UP kernel ?
Date: Wed, 14 Sep 2005 08:58:02 +0100 [thread overview]
Message-ID: <200509140858.02951.andrew@walrond.org> (raw)
In-Reply-To: <dg8f8l$80n$1@news.cistron.nl>
On Wednesday 14 September 2005 07:16, Danny ter Haar wrote:
>
> Now that you mention it, i saw this in the log file when running the SMP
> kernel:
>
> newsgate kernel: mv[7024]: segfault at 00002aaaaabc3648 rip
> 00002aaaaaaac80e rsp 00007fffffdc17c0 error 4
>
> It was only a oneliner, no further details.
>
Almost certainly due to bug 4851. You _really_ do not want to be using 2.6.12+
smp kernels on your hardware until this is sorted out. Stick to 2.6.11.12
I think this bug is going to bite a _lot_ of amd64 smp and dual core people as
they/distros start upgrading to these newer kernels.
Andrew/Linus: you might consider including a warning in kernel release
messages until this problem gets resolved, since it affects userland in such
an unpredictable way and we have a good handle on which systems it affects
(smp AMD64)
Andrew Walrond
prev parent reply other threads:[~2005-09-14 7:58 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-09-13 21:12 Danny ter Haar
2005-09-13 21:54 ` Andrew Walrond
2005-09-14 6:16 ` Danny ter Haar
2005-09-14 7:58 ` Andrew Walrond [this message]
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