Created attachment 108995 [details] /sys/class/drm/card0/error.xz [42969.772395] [drm] GPU HANG: ecode -1:0x00000000, reason: Command parser error, iir 0x00008000, action: continue [42969.772395] [drm] GPU hangs can indicate a bug anywhere in the entire gfx stack, including userspace. [42969.772395] [drm] Please file a _new_ bug report on bugs.freedesktop.org against DRI -> DRM/Intel [42969.772395] [drm] drm/i915 developers can then reassign to the right component if it's not a kernel issue. [42969.772395] [drm] The gpu crash dump is required to analyze gpu hangs, so please always attach it. [42969.772395] [drm] GPU crash dump saved to /sys/class/drm/card0/error [42969.772395] i915: render error detected, EIR: 0x00000010 [42969.772395] i915: page table error [42969.772395] i915: PGTBL_ER: 0x00000400 [42969.772395] [drm:i915_report_and_clear_eir] *ERROR* EIR stuck: 0x00000010, masking [42969.772395] [drm] GPU HANG: ecode -1:0x00000000, reason: Command parser error, iir 0x00008000, action: continue [42969.772395] i915: render error detected, EIR: 0x00000010 [42969.772395] i915: page table error [42969.772395] i915: PGTBL_ER: 0x00000400 All I noticed was a jerky mouse xorg-server 1.16.1-1 xf86-video-intel 2.99.916-3 dri2proto 2.8-2 dri3proto 1.0-1 mesa 10.3.2-1 mesa-dri 10.3.2-1
As usual, Display B is nowhere near a Y-fence. Interestingly though: 05400000 4194304 40 40 0 0 P Y dirty uncached (fence: 5) i.e. at the time of the error, the only Y-fenced surface is being accessed (it is currently pinned for use in the hardware) which implies that we are servicing i915_gem_fault(). Impression remains that this is the hardware crying wolf.
Ok, invalid tiling hangs seem to be mostly red herrings, so let's close them. Also recent kernels wont' report them any more - recent = 3.19 or so ;-) commit 4f15a1a098745ef0cc496256ec14bd31e0d82683 Author: Daniel Vetter <daniel.vetter@ffwll.ch> Date: Tue Nov 4 15:52:22 2014 +0100 drm/i915: Stop gathering error states for CS error interrupts Thanks anyway for reporting this issue.
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