Kasper Dupont 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.
-- Kasper Dupont -- der bruger for meget tid på usenet. For sending spam use mailto:aaarep@daimi.au.dk for(_=52;_;(_%5)||(_/=5),(_%5)&&(_-=2))putchar(_);
diff -Nur linux.old/drivers/char/drm/i810_dma.c linux.new/drivers/char/drm/i810_dma.c --- linux.old/drivers/char/drm/i810_dma.c Wed Feb 26 13:36:14 2003 +++ linux.new/drivers/char/drm/i810_dma.c Wed Feb 26 13:36:20 2003 @@ -894,6 +894,7 @@ void i810_dma_service(int irq, void *device, struct pt_regs *regs) { drm_device_t *dev = (drm_device_t *)device; + if (dev && dev->dev_private && dev->counts) { drm_i810_private_t *dev_priv = (drm_i810_private_t *)dev->dev_private; u16 temp; @@ -907,6 +908,9 @@ queue_task(&dev->tq, &tq_immediate); mark_bh(IMMEDIATE_BH); + } else { + printk(KERN_CRIT __FUNCTION__ ": NULL pointer\n"); + } } void i810_dma_immediate_bh(void *device)
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This archive was generated by hypermail 2b29 : Fri Feb 28 2003 - 22:00:35 EST