See also: https://bugs.freedesktop.org/show_bug.cgi?id=53385 Lately, sometimes, this is happening in dmesg without doing anything in particular special: [14153.513354] [drm] capturing error event; look for more information in /debug/dri/0/i915_error_state [14153.514006] i915: render error detected, EIR: 0x00000010 [14153.514006] i915: IPEIR: 0x00000000 [14153.514006] i915: IPEHR: 0x01000000 [14153.514006] i915: INSTDONE: 0xfffffffe [14153.514006] i915: INSTPS: 0x0001e000 [14153.514006] i915: INSTDONE1: 0xffffffff [14153.514006] i915: ACTHD: 0x1f80d0b8 [14153.514006] i915: page table error [14153.514006] i915: PGTBL_ER: 0x00000001 [14153.514006] [drm:i915_report_and_clear_eir] *ERROR* EIR stuck: 0x00000010, masking According to Daniel Vetter this should not be kernel related and his first advice is to try out a later mesa state. In my case I will upgrade to mesa-9999 and keep an eye on dmesg.
happened again with: mesa-9_pre20120831 mesa-9999 So either it is kernel 3.5.x related or was introduced at an earlier mesa commit.
I think I've now accumulated enough uptime in 3.4.10 to tell that the error is not present there, so back to vanilla-sources-3.5.3. Now, I've rebuilt xf86-video-intel with a modified ebuild to exclude UXA (and include _only_ SNA) support and haven't seen the oops for several hours. Previously, unknowingly, UXA was used instead, so that might be related.
After switching to SNA more than a week ago there were no such errors anymore.
Update: Seems the error is here to stay. Still happens after packages were updated to mesa-9.0.3, xf86-video-intel-2.21.x, and through all the kernel versions until 3.8.1 currently.
https://bugs.freedesktop.org/show_bug.cgi?id=53385#c31 Please see above URL. Could you try newer versions and report back there to help them test possible fixes to this problem? Good luck and thank you in advance.
