Created attachment 87813 [details] dmesg System Environment: -------------------------- Platform: Pineview/945 Kernel: (drm-intel-fixes)cd66407810869709e0d6764409137d48c6812cfc Bug detailed description: ----------------------------- Run ./gen3_mixed_blits, [drm:i915_report_and_clear_eir] *ERROR* EIR stuck: 0x00000010, masking randomly appears in dmesg.It happens 1 in 5 runs. It happens on pineview and 945 with -fixes kernel. output: Using 384 1MiB buffers Verifying initialisation...done Cyclic blits, forward...verifying...done Cyclic blits, backward...verifying...done Random blits...verifying...done Reproduce steps: ---------------------------- 1../gen3_mixed_blits
Can you also attach the corresponding error-state?
Display A: invalid tiling. Hopefully, the error-state will shed more light on the issue.
Created attachment 87909 [details] error informaiton
The display state seems valid - the block that faulted is pointing to an uncached buffer, the scanout is not being written to by the render engine and there is not even a nearby Y-fence. I think this is a WONTFIX - but lets see if we can understand the trigger a bit better first. Does this appear to a recent regression? Would it be possible to bisect?
(In reply to comment #4) > The display state seems valid - the block that faulted is pointing to an > uncached buffer, the scanout is not being written to by the render engine > and there is not even a nearby Y-fence. > > I think this is a WONTFIX - but lets see if we can understand the trigger a > bit better first. Does this appear to a recent regression? Would it be > possible to bisect? It is not a recent regression. Test on earlier commit, It also has this issue. Test commit:8abbbaf6adb46157b6bd416f7616b555cc6a332f. commit 8abbbaf6adb46157b6bd416f7616b555cc6a332f Author: Daniel Vetter <daniel.vetter@ffwll.ch> Date: Wed Mar 27 21:42:00 2013 +0100 drm: don't unlock in the addfb error paths We don't grab the modeset locks any more since
Unless someone has a bright idea, I am afraid that we need to consign this to the annals of history.
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