Bug 10330

Summary:	OpenGL games cause kernel panic with i810 driver and DRI
Product:	xorg	Reporter:	Ben Blum <benjamin_d_blum>
Component:	Driver/intel	Assignee:	Eric Anholt <eric>
Status:	RESOLVED WORKSFORME	QA Contact:	Xorg Project Team <xorg-team>
Severity:	major
Priority:	high
Version:	7.2 (2007.02)
Hardware:	x86 (IA32)
OS:	Linux (All)
Whiteboard:
i915 platform:		i915 features:

Description Ben Blum 2007-03-17 19:12:13 UTC

Xorg.conf: http://pastebin.ca/399609
glxinfo: http://pastebin.ca/399610
uname -a: Linux phoenix 2.6.20-gentoo-r3 #1 SMP PREEMPT Fri Mar 16 16:07:02 EDT 2007 i686 Intel(R) Pentium(R) 4 CPU 2.40GHz GenuineIntel GNU/Linux

OpenGL games seem to make X lock up completely. After some time playing (it's happened anywhere between a minute and an hour), the screen goes totally black, and the computer is unresponsive to mouse/keyboard input. The kernel is still running, as evidenced by use of the Magic SysRq key showing up in the system log, but nothing else elicits a response (I've not yet tried sshing from a remote box).

I've only had this issue with Quake 3. PPRacer, for some reason, has never generated this crash. The effects seem a lot like those in https://bugs.freedesktop.org/show_bug.cgi?id=2581 but running more than one instance of glxgears also doesn't seem to affect anything, and I've never had it lock up on its own without Quake 3 running.

Comment 1 Ben Blum 2007-03-18 12:24:49 UTC

Okay, a few corrections. The Magic SysRq key actually has no effect - alt+sysrq+b doesn't make the computer reboot, and grep shows no record of it being used in the system log. So it must be a kernel panic, and not just Xorg locking up. This is further evidenced by nothing out of the ordinary appearing in Xorg.0.log

I've tried this without AIGLX as well (setting "Option "AIGLX" "false" " in xorg.conf), and it doesn't change anything. The lock-up happens both with and without AIGLX; both in KDE and twm. Sometimes it's not an entirely black screen; on the last occasion, the video distorted for a split second, everything became slightly blurry, and some horizontal lines of pixels were out of place.

Comment 2 Ben Blum 2007-03-24 09:59:48 UTC

Interesting - I'd had my motherboard OC'ed by 108%, and apparently the graphics card didn't like that. De-overclocking it fixed the issue.

However, other people also get this problem (see http://bugzilla.kernel.org/show_bug.cgi?id=6626), and I'm not sure if OC'ing is the source of that too.

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