i915: drm:i915_wait_irq EBUSY

[Niel Lambrechts]

Hi

I recently changed AccelMethod to XAA in my xorg.conf, and after
resuming (from hibernate), my X-server crashed with the following dmesg.
It was non-fatal, as I could restart X (from a black console screen -
not sure if that is related). Never had any problems suspending to
either disk/memory without this option up to now...
 
dmesg output:
ata2.00: ACPI cmd e3/00:1f:00:00:00:a0
succeeded                                                             
ata2.00: ACPI cmd e3/00:02:00:00:00:a0
succeeded                                                             
ata2.00: ACPI cmd e3/00:1f:00:00:00:a0
succeeded                                                             
ata2.00: ACPI cmd e3/00:02:00:00:00:a0
succeeded                                                             
ata2.00: configured for
UDMA/133                                                                             

Restarting tasks ...
done.                                                                                   

ata2: exception Emask 0x10 SAct 0x0 SErr 0x0 action 0x9
t4                                                   
ata2: irq_stat
0x40000001                                                                                    

ata2.00: configured for
UDMA/133                                                                             

ata2: EH
complete                                                                                            

[drm:i915_wait_irq] *ERROR* EBUSY -- rec: 44209483 emitted:
44209484                                         
[drm:i915_wait_irq] *ERROR* EBUSY -- rec: 44209483 emitted:
44209484                                         
[drm:i915_wait_irq] *ERROR* EBUSY -- rec: 44209483 emitted:
44209484                                         
[drm:i915_wait_irq] *ERROR* EBUSY -- rec: 44209483 emitted:
44209484                                         
[drm:i915_wait_irq] *ERROR* EBUSY -- rec: 44209483 emitted: 44209484

The problem occurred on my Thinkpad W500, running OpenSUSE 11.1 with
vanilla 2.6.28.6-pae kernel, using the integrated Intel Mobile GM45
Express chipset.

Any ideas?

Niel

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