[Pkg-fglrx-devel] Bug#576942: /boot/vmlinuz-2.6.32-3-amd64: kernel fix for wrong mtrr mask from MS-7252 bios may be wrong and cause problems with fglrx-driver

Friedrich Delgado Friedrichs friedel at nomaden.org
Sat Apr 10 13:18:43 UTC 2010

Ben Hutchings schrieb:
> On Thu, 2010-04-08 at 14:26 +0200, Friedrich Delgado Friedrichs wrote:
> > [    0.000000] WARNING: at /build/mattems-linux-2.6_2.6.32-9-amd64-NYTFdD/linux-2.6-2.6.32-9/debian/build/source_amd64_none/arch/x86/kernel/cpu/mtrr/generic.c:467 generic_get_mtrr+0xbf/0xf9()
> > [    0.000000] Hardware name: MS-7252
> > [    0.000000] mtrr: your BIOS has set up an incorrect mask, fixing it up.

> > are supposed to indicate a crash in the kernel.
> It's not a crash, it's a warning about a BIOS bug.

In fact, that's what I suspected as well.

Is there any way this bios bug could cause me further trouble?

> > I have included the full dmesg output below, currently running the
> > free radeon driver + module.
> [...]
> Does this system work properly (aside from the above warning) when using
> the radeon driver?

It appears to work properly.

I have been constantly running the radeon driver for 3 days only so
far, but there are no stability or performance issues that came up in
that period. I'm currently enjoying the increased 2D performance the
free radeon driver offers me, especially with video playback.

Can I provide more useful information?
        Friedrich Delgado Friedrichs <friedel at nomaden.org>
                             TauPan on Ircnet and Freenode ;)

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