https://bugs.freedesktop.org/show_bug.cgi?id=83319
--- Comment #10 from Dieter Nützel Dieter@nuetzel-hh.de --- (In reply to Heiko from comment #9)
Created attachment 118054 [details] kmsg: gsraytrace lockup on HD6850
Just noticed the problem today on my HD6850. Unfortunately, it doesn't come back to life all the time. That is either complete lockup (and reboot) or at least Xorg being hung in process state D and gsraytrace in state Z. Attached log produced, when hitting the latter one (though sysrq still worked and terminal after sysrq-r worked well). The lock contains some of the sysrq-show-xyz triggers, which are of help maybe (the blocked cat is from catting one of the radeon sysfs entries). Xorg log only shows event overflows.
GPU hang seems to be 100% reproducable with gsraytrace for me.
Software components being: media-libs/mesa-9999 (git-4de86e1) sys-devel/llvm-3.6.2 sys-kernel/vanilla-sources-4.2.0 x11-libs/libdrm-2.4.64
options radeon audio=1 tv=0 dpm=1
Hello Heiko,
I've started this one year ago for _RV730_ (AGP) and it is still open for it.
But as you're on HD6850 and I'm on Turks (6670), now I've opened up new one for those, here: bug 91865 I think you should move your logs there.
My impression is that they could be related.