linux-kernel - Re: drm/nouveau E[ DRM] fail ttm

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Date:	Sat, 5 Jan 2013 14:59:25 +0100
From:	Marcin Slusarz <marcin.slusarz@...il.com>
To:	Kees Bakker <kees.bakker@...all.nl>
Cc:	linux-kernel@...r.kernel.org,
	Maarten Lankhorst <maarten.lankhorst@...onical.com>
Subject: Re: drm/nouveau E[     DRM] fail ttm_validate

On Fri, Jan 04, 2013 at 10:25:27PM +0100, Kees Bakker wrote:
> On 04-01-13 18:49, Marcin Slusarz wrote:
> > On Fri, Jan 04, 2013 at 01:21:14PM +0100, Kees Bakker wrote:
> >> Hi,
> >>
> >> Right after I upgraded to Ubuntu quantal I started seeing these
> >> messages:
> >> Jan  4 12:18:12 koli kernel: [ 3705.970720] nouveau E[     DRM] fail ttm_validate
> >> Jan  4 12:18:12 koli kernel: [ 3705.970726] nouveau E[     DRM] validate vram_list
> >> Jan  4 12:18:12 koli kernel: [ 3705.970760] nouveau E[     DRM] validate: -12
> > This is userspace bug. See below.
> >
> >> A few times I had corrupted graphics, and I had to stop X. Restarting didn't
> >> help and I had to reboot.
> >>
> >> I'm running my own 3.7.1 kernel, so I also installed the 3.7.0 development kernel
> >> from Ubuntu (3.7.0-7). And that kernel shows these messages too.
> >>
> >> With the Ubuntu kernel the graphics corruption is milder. I can continue to work. Sometimes
> >> I get a burst of the messages, but I have no clue how it is triggered.
> >>
> >> Now the strange thing is that I was running my 3.7.1 kernel on Ubuntu precise
> >> and I have never seen these messages before. What could be the case is that
> >> xorg is doing something new and that is causing the errors.
> >>
> >> xserver-xorg-video-nouveau
> >>     precise 1:1.0.2-0ubuntu3
> >>     quantal 1:0.0.16+git20111201+b5534a1-1build2
> > (Please do not use distro codenames when reporting bugs upstream)
> >
> > Quantal, being newer release than Precise, ships much older Nouveau DDX, WTF?
> > You used some PPA with Precise?
> Sorry about that. That was a typo. I meant to say:
>     quantal 1:1.0.2-0ubuntu3
>     precise 1:0.0.16+git20111201+b5534a1-1build2
> 
> >
> > 0.0.16 is known to behave like that - you need to upgrade to >= 1.0.
> 
> In other words, I have >= 1.0. But you suggest that it shouldn't
> happen with >= 1.0
> Should I report it on the nouveau list at freedesktop.org ?

Ugh, it was unexpected :/

Please follow instructions from http://nouveau.freedesktop.org/wiki/Bugs and
open new bug report. I have some patches which may help in narrowing it down,
but I would like to see all bug report data first.

Marcin

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