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
Created attachment 43388 [details]
Created attachment 43389 [details]
Xorg log file
Does not show anything at the lock up time
Does disabling pageflipping (in the device section of your xorg.conf) help?
Option "EnablePageFlip" "False"
*** This bug has been marked as a duplicate of bug 33515 ***
Disabling pageflipping does not help.