[Bug 55692] [KMS][Cayman] Garbled screen and oops with 6950 with linus git from 20121006 (3.7-rc0)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=55692

--- Comment #44 from Serkan Hosca <serkan at hosca.com> ---
(In reply to comment #43)
> Good news! I figured out what it is (the crash not the memory problem) and
> can reproduce it.
> 
> A patch fixing this shouldn't be to much of a problem any more, but I don't
> think I will have time to fix it before Monday.
> 
> So please be patient for a couple of more days.

Thats cool. I found out what triggers the gart error. I had gtk-redshift on
session start up. After removing that the ttm error is gone. It redshifts the
screen colors so that it is easy on the eyes and when its started it starts the
redshifting gradually.

Also, i have been playing around with the RADEON_VA variable but i can't
trigger the gpu stall anymore, i get some graphical corruptions and a couple of
these instead:

[drm:radeon_cs_ioctl] *ERROR* Failed to parse relocation -12!

After a shell restart, the glitches go away.

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