On Wed, 2003-02-26 at 22:26, Alan Cox wrote:
I have a reproducable kernel panic with different 2.4.x kernels. I'm using XFree86-4.2.0-8 with a i810 onboard chipset. Sometimes when I log off X the kernel panics. This can be reproduced by loging in on a VC as root and typing:
while [ ! -f /tmp/stopit ] ; do killall gdmlogin || killall gdm ; sleep 7 ; deallocvt done
I made a patch, that at least prevents the system from panicing. This is just a workaround, probably the problem is really somewhere else. My guess is that something in the driver cleanup is being done in an incorrect order, but I do have some problems following this code.
Can we just stop interrupt generation by the CGC during cleanup?
Hmm. The current cvs i810 drm doesn't use interrupts at all, from memory. It was removed because the code was complicated & prone to failure.
Now that we have vblank, etc code, it may be time to consider readding it.
Keith
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