Re: Revert 737a3bb9416ce2a7c7a4170852473a4fcc9c67e8 ?

From: Andy Furniss
Date: Wed Apr 13 2011 - 16:29:07 EST

Michel DÃnzer wrote:

That does sound like the GPU locks up. Do you get any messages in dmesg
about lockups and attempts to reset the GPU at any time?


Hmm, I guess the constant SIGALRMs might prevent the lockup detection
from kicking in... Maybe you can try starting the X server with
-dumbSched to see if that gets things along any further, but in the end
there's probably no way around figuring out what causes the lockup and
fixing that anyway.

I have an old AGP box that locks with 600g + agpgart - It used to give GPU lockup to dmesg/log, but (I only test it occasionally) it doesn't anymore. I can still sysrq OK.

I wonder if something changed in recent months in the drm/whatever code that has changed/blocked the logging.
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