kern/107342: Radeon dri breaks system

[Tim]

>Number:         107342
>Category:       kern
>Synopsis:       Radeon dri breaks system
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Fri Dec 29 21:30:13 GMT 2006
>Closed-Date:
>Last-Modified:
>Originator:     Tim
>Release:        6.2 rc2
>Organization:
>Environment:
FreeBSD mobile-desk.internal.net 6.2-RC2 FreeBSD 6.2-RC2 #0: Thu Dec 28 05:08:37 EST 2006     root at mobile-desk.internal.net:/usr/obj/usr/src/sys/GENERIC  i386

>Description:
My laptop is a IBM thinkpad r52. It has a Mobility Radeon X300. I load radeon by loader.conf or by compiling in the kernel. 

The dri/drm seems to work fine until I log out. 

Logging out of a graphical interface causes the system to panic every single time.

I know of at least one other person who is having this problem. It can be seen at http://unix.derkeiler.com/Mailing-Lists/FreeBSD/stable/2006-05/msg00634.html

I'll be more then happy to supply any further information anybody needs to get this fixed. 

I should mention that this card has full hardware acceleration and suspends and resumes just fine under several different linux :( distros. 


>How-To-Repeat:
Enable dri in xorg.conf on a r300 mobility radeon card and logout out of a graphical interface. 
>Fix:
Comment out dri/glx in the xorg.conf and the system does not crash, though it has much reduced functuality. 
>Release-Note:
>Audit-Trail:
>Unformatted: