[Bug 30227] [RADEON:KMS:AGP:R300:PPC] random X freeze by a GPU lockup

https://bugs.freedesktop.org/show_bug.cgi?id=30227

--- Comment #11 from Michel Dänzer michel@daenzer.net 2011-12-15 10:12:05 PST --- (In reply to comment #10)

However, for me it crashes about 10-20 seconds when glxgears is running, or it instantly crashes when I attempt to move or resize a window in WindowMaker.

Setting agpmode=-1 fixes the problem for me.

Given your slightly different symptoms, I think we have to assume it's not exactly the same problem. Please file your own report with all the relevant information (at least dmesg output pertaining to agp/drm/radeon).

BTW, if you can narrow down where exactly in r300_asic_reset() the machine check happens, maybe we can fix that.