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Date:	Sun, 23 Dec 2012 13:22:12 +0100
From:	Borislav Petkov <>
To:	Markus Trippelsdorf <>
Cc:	Andy Furniss <>,
	Alex Deucher <>,
	Alex Deucher <>,,
	lkml <>
Subject: Re: radeon 0000:02:00.0: GPU lockup CP stall for more than 10000msec

On Sun, Dec 23, 2012 at 12:51:33PM +0100, Markus Trippelsdorf wrote:
> (If you don't use modules: git grep MODULE_PARM_DESC --
> drivers/gpu/drm/radeon/ )


> You may have hit the same issue as I, see:

Yes, it very much looks like it. That same page kills the machine here
too. Maybe the GPU gets scared from the graphic nature of those images
and gives up. :-D

Although the box is not completely dead - I can login to a console and
save dmesg before rebooting.

And this bug becomes funnier and funnier - Alex, you might want to add
that webpage to your testsuite :-).

> Reverting commit 2d6cc729 fixes the problem for me, setting
> radeon.no_wb=1 doesn't help.

Right, let me try that and report back.

Good job Markus, thanks!


Sent from a fat crate under my desk. Formatting is fine.
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