Bug 34302

Summary: xf86-video-ati 6.14.0 hard freeze in fullscreen OpenGL applications
Product: DRI Reporter: gabgav
Component: DRM/RadeonAssignee: Default DRI bug account <dri-devel>
Status: RESOLVED DUPLICATE QA Contact:
Severity: critical    
Priority: medium CC: gabgav
Version: XOrg git   
Hardware: x86 (IA32)   
OS: Linux (All)   
See Also: https://bugs.freedesktop.org/show_bug.cgi?id=33515
Whiteboard:
i915 platform: i915 features:
Attachments:
Description Flags
glxinfo output
none
Xorg log file none

Description gabgav 2011-02-15 09:31:30 UTC 
Kernel: 2.6.36 and 2.6.38-RC4
MESA: 7.10 with gallium and llvm enabled.
Driver: xf86-video-ati 6.14.0
WM: Kwin 4.6.0 and TWM
Card: Radeon Mobility X300

System locks up after running a fullscreen OpenGL application (e.g. glxgears and hedgewars). Using 2.6.38-RC4, the system locks up almost immediately after starting the application. With 2.6.36, glxgears does not lock up the system, but hedgewars does after a short period of time. 
KWin runs well and does not cause a system lock in either case. Running the programs under TWM also causes a lock up.
xf86-video-ati 6.13 ran well.
The lock up occurs with and without polling (Bug 29389).
Occurs only with Gallium3D, classic runs well
dmesg output at time of lock up was:
[ 1290.006008] Uhhuh. NMI received for unknown reason a1 on CPU 0.
[ 1290.006008] You have some hardware problem, likely on the PCI bus.
[ 1290.006008] Dazed and confused, but trying to continue
Comment 1 gabgav 2011-02-15 09:32:29 UTC 
Created attachment 43388 [details]
glxinfo output
Comment 2 gabgav 2011-02-15 09:35:35 UTC 
Created attachment 43389 [details]
Xorg log file

Does not show anything at the lock up time
Comment 3 Alex Deucher 2011-02-15 09:49:00 UTC 
Does disabling pageflipping (in the device section of your xorg.conf) help?

Option "EnablePageFlip" "False"
Comment 4 Alex Deucher 2011-02-15 09:50:47 UTC 

*** This bug has been marked as a duplicate of bug 33515 ***
Comment 5 gabgav 2011-02-15 10:00:47 UTC 
Disabling pageflipping does not help.

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