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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Gabriel Tataranu <tgabi@belent.com>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [UPDATE] Severe performance problems with kernel 2.6.10
Date: Mon, 17 Jan 2005 21:00:15 +0000	[thread overview]
Message-ID: <1105995611.16119.16.camel@localhost.localdomain> (raw)
In-Reply-To: <41EC1721.8080405@belent.com>

On Llu, 2005-01-17 at 19:50, Gabriel Tataranu wrote:
> For those interested:
> 
> The performance issues (below) where due to a strange bug in the kernel
> VM triggered by the motherboard BIOS. This affects Asus P4P800
> motherboards(-MX and -VM tested) with more that 1 GB RAM. The built-in
> VGA can use 1-32 MB RAM for display but configured with less than 16 MB
> of video RAM the board will behave EXTREMELY poor in linux (2.6.9 also
> tested to behave like this).

I'll take a guess. Can you send me the boot dmesg and /proc/mtrr of both
the slow and the normal cases. I think I know what the BIOS is doing and
I've been looking for a system doing this so I can find a
vict^H^H^Holunteer to test some ideas out.

Alan


      reply	other threads:[~2005-01-17 22:30 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-01-17 19:50 Gabriel Tataranu
2005-01-17 21:00 ` Alan Cox [this message]

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