-----Forwarded Message-----
> From: Kasper Dupont <[EMAIL PROTECTED]>
> To: Linux-Kernel <[EMAIL PROTECTED]>
> Subject: Re: Panic in i810
> Date: 26 Feb 2003 13:43:48 +0100
>
> 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:[EMAIL PROTECTED]
> 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)
--
Alan Cox <[EMAIL PROTECTED]>
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