Bug 4714

Summary:	OpenGL applications and some X-windows functions cause machine to be unresponsive.
Product:	Drivers	Reporter:	Alan Grimes (agrimes)
Component:	Video(DRI - non Intel)	Assignee:	drivers_video-dri
Status:	REJECTED INVALID
Severity:	normal	CC:	nacc
Priority:	P2
Hardware:	i386
OS:	Linux
Kernel Version:	2.6.11 -- 2.6.12-rc5	Subsystem:
Regression:	---	Bisected commit-id:

Description Alan Grimes 2005-06-05 20:13:50 UTC

Distribution: Gentoo
Hardware Environment: Dual Athlon 1.2ghz, ATI R128, AMD760MPX 
Software Environment: Xorg X11, 6.8.2, fvwm, any OpenGl game.
Problem Description: 

Playing an openGl application, or even manipulating a desktop pop-up menu while
an OpenGL application is active causes the machine to become totally
unresponsive except for the mouse for exactly ten seconds or some multiple
thereof... 

I suspect this is a kernel bug because running Xosview on the secondary
videocard/monitor -- which also freezes, suggests that one of the two processors
is in "system" mode for the entire duration... I suspect it's a deadlock in the
kernel and a 10 second watchdog timer is recovering the thing... Applications
appear to be working normally during these outages but are unable to send data
to the screen. 

Steps to reproduce:

Run any OpenGL application for a few minutes. -- it hangs...

Comment 1 Nishanth Aravamudan 2005-06-07 23:48:24 UTC

Any dmesg output indicating there is actually a kernel issue? Like the watchdog
timer coming up and kicking the task?
Thanks,
Nish