From: Christoph Lameter <clameter@engr.sgi.com>
To: Andi Kleen <ak@suse.de>
Cc: discuss@x86-64.org, Andrey Slepuhin <pooh@t-platforms.ru>,
Ray Bryant <raybry@mpdtxmail.amd.com>,
linux-mm@kvack.org, akpm@osdl.org
Subject: Re: [discuss] Memory performance problems on Tyan VX50
Date: Wed, 1 Feb 2006 09:03:15 -0800 (PST) [thread overview]
Message-ID: <Pine.LNX.4.62.0602010900200.16613@schroedinger.engr.sgi.com> (raw)
In-Reply-To: <200602011539.40368.ak@suse.de>
On Wed, 1 Feb 2006, Andi Kleen wrote:
> Looks like a bug. There were changes both in the page allocator and in
> mempolicy in 2.6.16rc, so it might be related to that.
> What does this wheremem program do exactly?
> And what does numastat --hardware say on the machine?
>
> Either it's generally broken in page alloc or mempolicy somehow managed to pass in
> a NULL zonelist.
The failure is in __rmqueue. AFAIK There is no influence of mempolicy on
that one. Could we get an accurate pointer to the statement that is
causing the NULL deref?
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next prev parent reply other threads:[~2006-02-01 17:03 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <43DF7654.6060807@t-platforms.ru>
[not found] ` <200601311223.11492.raybry@mpdtxmail.amd.com>
[not found] ` <43E0B8FE.8040803@t-platforms.ru>
2006-02-01 14:39 ` Andi Kleen
2006-02-01 17:03 ` Christoph Lameter [this message]
2006-02-01 17:16 ` Andi Kleen
2006-02-01 20:26 ` Andrey Slepuhin
2006-02-01 23:59 ` Christoph Lameter
2006-02-02 22:07 ` Ray Bryant
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