linux-kernel - Re: [3.3-rc1]radeon 0000:07:00.0: GPU lockup CP stall for more than 10000msec

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Date:	Mon, 23 Jan 2012 11:57:52 -0500
From:	Jerome Glisse <j.glisse@...il.com>
To:	Torsten Kaiser <just.for.lkml@...glemail.com>
Cc:	linux-kernel@...r.kernel.org,
	Alex Deucher <alexander.deucher@....com>,
	Dave Airlie <airlied@...hat.com>,
	dri-devel@...ts.freedesktop.org
Subject: Re: [3.3-rc1]radeon 0000:07:00.0: GPU lockup CP stall for more than
 10000msec

On Sat, Jan 21, 2012 at 08:03:37PM +0100, Torsten Kaiser wrote:
> After updating to kernel 3.3-rc1 I have experienced a lockup of my GPU.
> I left my KDE desktop running until the screensaver turned off the
> monitors. But on key presses it would not turn back on. Ctrl+Alt+F1 to
> switch to another virtual console also did not work.
> Alt+SysRq magic still worked, so I was able to force the syslog to
> disk and restart the system.
> 

Can you test if attached patch help your case ?

Of course it would be best if we did not lockup in the first place.

Cheers,
Jerome

View attachment "0001-drm-radeon-avoid-deadlock-if-GPU-lockup-is-detected-.patch" of type "text/plain" (7147 bytes)