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Subjectv2.6.38-rc5 drm:radeon regression
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Reaching the desktop in v2.6.38-rc5 I only see the background.
No Icon,widgets,windows etc. I am under the impression
that everything is there - but invisible.

HW is Thinkpad T43 with Mobility Radeon X300 graphic.

Switching to the command line I see drm:radeon
displaying permanently :
drm:radeon_cs_ioctl error invalid command stream
drm:r100_cd_track_check no buffer for AA resolve buffer

I bisected the problem to:

fff1ce4dc6113b6fdc4e3a815ca5fd229408f8ef is the first bad commit
commit fff1ce4dc6113b6fdc4e3a815ca5fd229408f8ef
Author: Marek Olšák <maraeo@gmail.com>
Date: Mon Feb 14 01:01:10 2011 +0100

drm/radeon/kms: check AA resolve registers on r300

This is an important security fix because we allowed arbitrary values
to be passed to AARESOLVE_OFFSET. This also puts the right buffer address
in the register.

Signed-off-by: Marek Olšák <maraeo@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

:040000 040000 c3a86a556f8c4ee1313bdc12e1f86cb44bacb742
5b872a00532f36c0514790223375f1377a588501 M drivers
[unhandled content-type:application/octet-stream]
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