BUG: 2.4.21-rc-ac3 [drm:i830_wait_ring] *ERROR*

BUG: 2.4.21-rc-ac3 [drm:i830_wait_ring] *ERROR*

[Ricardo Galli]

Hi Alan,
	I've got the following error from the i830 drm modules. I attach the 
relevant lines, including when X/drm was started. The X server (4.3) was 
killed after the kernel gave the errors. 

It happened when I changed from X to a console via Ctrl-Alt-F8. I checked 
the sources:

if(time_before(end, jiffies))
                    ^^^^^^^
	DRM_ERROR("space: %d wanted %d\n", ring->space, n);
	DRM_ERROR("lockup\n");

Just in case, I had running my own program 
(http://mnm.uib.es/~gallir/cpudyn/) to change the frequency of the cpu 
dinamically according to the load. 

I tried to repeat it with _and_ without that daemon running (i.e. at 
constantfrequency) without success yet.


Regards,

PS: the laptop is a Dell X200, AGP is integrated in the kernel,

-----------------
memory : d63256e0
memory : d6325720
memory : d6325760
memory : d63257a0
[drm] AGP 0.99 on Intel i810 @ 0xe8000000 128MB
[drm] Initialized i830 1.3.2 20021108 on minor 0
mtrr: base(0xe8000000) is not aligned on a size(0x180000) boundary
memory : d6325820
memory : d6325860
memory : d63258a0
memory : d63258e0
memory : d6325920
PCI: Found IRQ 10 for device 00:02.0
PCI: Sharing IRQ 10 with 00:1d.0
PCI: Sharing IRQ 10 with 02:03.0
[drm:i830_wait_ring] *ERROR* space: 131048 wanted 131064
[drm:i830_wait_ring] *ERROR* lockup
[drm:i830_wait_ring] *ERROR* space: 131040 wanted 131064
[drm:i830_wait_ring] *ERROR* lockup
[drm:i830_wait_ring] *ERROR* space: 131032 wanted 131064
[drm:i830_wait_ring] *ERROR* lockup
[drm:i830_wait_ring] *ERROR* space: 131024 wanted 131064
[drm:i830_wait_ring] *ERROR* lockup
[drm:i830_wait_ring] *ERROR* space: 131016 wanted 131064
[drm:i830_wait_ring] *ERROR* lockup
[drm:i830_wait_ring] *ERROR* space: 131008 wanted 131064
[drm:i830_wait_ring] *ERROR* lockup
[drm:i830_wait_ring] *ERROR* space: 131000 wanted 131064
[drm:i830_wait_ring] *ERROR* lockup
[drm:i830_wait_ring] *ERROR* space: 130992 wanted 131064
[drm:i830_wait_ring] *ERROR* lockup
[drm:i830_wait_ring] *ERROR* space: 130984 wanted 131064
[drm:i830_wait_ring] *ERROR* lockup
[drm:i830_wait_ring] *ERROR* space: 130976 wanted 131064
[drm:i830_wait_ring] *ERROR* lockup
[drm:i830_wait_ring] *ERROR* space: 130968 wanted 131064
[drm:i830_wait_ring] *ERROR* lockup
[drm:i830_wait_ring] *ERROR* space: 130960 wanted 131064
[drm:i830_wait_ring] *ERROR* lockup

-- 
  ricardo galli       GPG id C8114D34