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Date:	Thu, 3 Jan 2013 14:12:15 +0000
From:	"Deucher, Alexander" <Alexander.Deucher@....com>
To:	Boszormenyi Zoltan <zboszor@...hu>,
	Alex Deucher <alexdeucher@...il.com>
CC:	Markus Trippelsdorf <markus@...ppelsdorf.de>,
	lkml <linux-kernel@...r.kernel.org>,
	"dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>,
	Borislav Petkov <bp@...en8.de>,
	Shuah Khan <shuahkhan@...il.com>
Subject: RE: radeon 0000:02:00.0: GPU lockup CP stall for more than 10000msec

> -----Original Message-----
> From: Boszormenyi Zoltan [mailto:zboszor@...hu]
> Sent: Thursday, January 03, 2013 6:37 AM
> To: Alex Deucher
> Cc: Markus Trippelsdorf; lkml; dri-devel@...ts.freedesktop.org; Deucher,
> Alexander; Borislav Petkov; Shuah Khan
> Subject: Re: radeon 0000:02:00.0: GPU lockup CP stall for more than
> 10000msec
> 
> 2013-01-03 00:37 keltezéssel, Alex Deucher írta:
> > On Wed, Jan 2, 2013 at 5:38 PM, Markus Trippelsdorf
> > <markus@...ppelsdorf.de> wrote:
> >> On 2013.01.02 at 17:31 -0500, Jerome Glisse wrote:
> >>> Please affected people can you test if patch :
> >>> http://people.freedesktop.org/~glisse/0003-drm-radeon-fix-dma-copy-
> on-r6xx-r7xx-evergen-ni-si-g.patch
> >>>
> >>> Fix the issue, you need to make sure you don't have the patch that
> >>> disable dma on r6xx ie that line 977-978 & 1061-1062  in radeon_asic.c
> >>> is :
> >>>   .copy = &r600_copy_dma,
> >>>   .copy_ring_index = R600_RING_TYPE_DMA_INDEX,
> >> It fixes the issue for me. Thanks.
> > The count is actually the count, not count - 1.  The real fix seems to
> > be that r6xx requires 2 dw aligned transfers.  The attached patch
> > fixes the issue for me.
> >
> > Alex
> 
> I tried this patch over kernel 3.8.0-rc2 but the GDM screen is mostly garbage.
> Only some text, like "Not on the list?" below the users and small icons are
> visible
> but many user names are not rendered. http://tinypic.com/r/33xihit/6
> I am on Fedora 18/x86_64, Radeon HD6570.

I don't think the issue you are seeing is related to this one.  Looks similar to:
https://bugs.freedesktop.org/show_bug.cgi?id=55574

Alex


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