Bug 27245

Summary:	[845] X crash / freeze
Product:	xorg	Reporter:	Adrian von Bidder <avbidder>
Component:	Driver/intel	Assignee:	Carl Worth <cworth>
Status:	RESOLVED DUPLICATE	QA Contact:	Xorg Project Team <xorg-team>
Severity:	normal
Priority:	medium	CC:	kenyon
Version:	7.5 (2009.10)
Hardware:	x86 (IA32)
OS:	Linux (All)
URL:	http://bugs.debian.org/573264
Whiteboard:
i915 platform:		i915 features:

Description Adrian von Bidder 2010-03-22 08:43:43 UTC

Reporting directly at the suggestion in the #debian-devel IRC channel.

Some more details in http://bugs.debian.org/573264

Basically, X dies with "Failed to submit batchbuffer: Input/output error" in Xorg.log and with this in dmesg:

+++
[ 4345.716012] [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... GPU hung
[ 4345.716027] render error detected, EIR: 0x00000000
[ 4345.716045] [drm:i915_do_wait_request] *ERROR* i915_do_wait_request returns -5 (awaiting 245106 at 245105)
[ 4348.220013] [drm:i915_gem_idle] *ERROR* hardware wedged
[ 4357.031224] [drm:i915_gem_entervt_ioctl] *ERROR* Reenabling wedged hardware, good luck
[ 4357.380008] [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... GPU hung
[ 4357.380017] render error detected, EIR: 0x00000000
[ 4357.380673] [drm:i915_do_wait_request] *ERROR* i915_do_wait_request returns -5 (awaiting 245109 at 245105)
[ 4359.236011] [drm:i915_gem_idle] *ERROR* hardware wedged
+++

This is with xserver-xorg-video-intel 2:2.9.1-2 as packaged by Debian and the 2.6.33 (Debian:  2.6.33-1~experimental.2) kernel.

Depending on how I trigger the bug, the errors are slightly different.  Enabling compositing (KDE4) or switching to a text console (i915.modeset is off) both certainly trigger it (symptom: screen goes dark); just using X also shows the issue after 20-40min.

I tried newer intel driver (packaged by Debian: 2:2.10.902-1) and newest libdrm (c1c8bbf8), but for lack of time not in all combinations.  This exact combination showed a frozen display (instead of a black one) with a "working" mouse pointer.  Not sure if that's an improvement ;-)

Sorry for the spotty information/version coverage - I just don't get enough time to work on this as much as I'd like...

cheers
-- vbi

Comment 1 Chris Wilson 2010-03-29 04:18:04 UTC

This is likely a dup of 26345, the i845 has a severe chipset bug that we've yet to address. If you get the chance, update to a recent kernel, 2.6.34-rc2, and upload the /sys/kernel/debug/dri/0/i915_error_state following a hang.

Comment 2 Chris Wilson 2011-04-17 01:01:14 UTC

Without additional info, I'm assuming this is a dup of the nasty 845G bug.

*** This bug has been marked as a duplicate of bug 26345 ***

Comment 3 Julien Cristau 2011-04-27 00:17:31 UTC

On Sun, Apr 17, 2011 at 01:01:14 -0700, bugzilla-daemon@freedesktop.org wrote:

> --- Comment #2 from Chris Wilson <chris@chris-wilson.co.uk> 2011-04-17 01:01:14 PDT ---
> Without additional info, I'm assuming this is a dup of the nasty 845G bug.
> 
See http://www.debian.org/News/2011/20110423 fwiw

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