linux-kernel - Re: radeon 0000:02:00.0: GPU lockup CP stall for more than 10000msec

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Date:	Tue, 25 Dec 2012 11:54:59 +0100
From:	Borislav Petkov <bp@...en8.de>
To:	Shuah Khan <shuahkhan@...il.com>
Cc:	Markus Trippelsdorf <markus@...ppelsdorf.de>,
	Andy Furniss <andyqos@...sn.org>,
	Alex Deucher <alexdeucher@...il.com>,
	Alex Deucher <alexander.deucher@....com>,
	dri-devel@...ts.freedesktop.org,
	lkml <linux-kernel@...r.kernel.org>
Subject: Re: radeon 0000:02:00.0: GPU lockup CP stall for more than 10000msec

On Mon, Dec 24, 2012 at 09:50:11PM -0700, Shuah Khan wrote:
> Saw the same error and after reading this thread, reverted the
>
> Commit 2d6cc7296d4ee128ab0fa3b715f0afde511f49c2.
>
> drm/radeon: use async dma for ttm buffer moves on 6xx-SI
>
> and the problem is gone. In my case, it is a solid hang right after
> system switches to vga. I was able to login on console once or twice.
> But dmesg showed the same message reported in this thread:
>
> [ 35.812085] radeon 0000:01:00.0: GPU lockup CP stall for more than
> 10000msec [ 35.812091] radeon 0000:01:00.0: GPU lockup (waiting for
> 0x0000000000000002 last fence id 0x0000000000000001)
>
>
> My system has: 01:00.0 VGA compatible controller: Advanced Micro
> Devices [AMD] nee ATI RV620 [Mobility Radeon HD 3400 Series]

You can apply http://marc.info/?l=dri-devel&m=135628734704029 instead,
in the meantime. It partially reverts the above commit and if RV620 is a
R600 asic (it should be) then it would fix your observation too.

Thanks.

-- 
Regards/Gruss,
    Boris.

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