linux-kernel - Re: i915: pipe state still does not match

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Message-ID: <20131129075616.GS27344@phenom.ffwll.local>
Date:	Fri, 29 Nov 2013 08:56:17 +0100
From:	Daniel Vetter <daniel@...ll.ch>
To:	Jan Engelhardt <jengelh@...i.de>
Cc:	Chris Wilson <chris@...is-wilson.co.uk>, daniel.vetter@...ll.ch,
	dri-devel@...ts.freedesktop.org,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: i915: pipe state still does not match

On Thu, Nov 28, 2013 at 09:08:45PM +0100, Jan Engelhardt wrote:
> On Wednesday 2013-11-27 12:08, Chris Wilson wrote:
> >On Wed, Nov 27, 2013 at 11:59:56AM +0100, Jan Engelhardt wrote:
> >> 
> >> Despite the i915/drm fixes added in v3.11.8, the X server still 
> >> terminates due to some pipe state bug in 3.11.9.
> >
> >X terminating is entirely unconnected with that *ERROR*.
> 
> Are you sure? Whenever X crashed, that inteldrv kernel message
> was showing up in dmesg.
> Affected versions:
> 	xorg-x11-server-1.14.3.901
> 	xf86-video-intel-2.99.906-4.1.x86_64
> Working versions:
> 	xorg-x11-server-1.13.2
> 	xf86-video-intel-2.20.19

For the ERROR the kernel is the important part. I can be that it's
triggered by userspace doing something funny (and likely, sinc there's a
good chance you're hitting a less well tested path when crashing). But
it's a kernel issue.

To track the kernel issue down can you please boot with drm.debug=0xe
added to your bootline, reproduce the issue and then attach the complete
dmesg?

Thanks, Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch
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