Created attachment 117465 [details] cat /sys/class/drm/card0/error One off hang with Ubuntu 15.04. Filing bug as requested. [4502933.820027] [drm] stuck on render ring [4502933.821391] [drm] GPU HANG: ecode 4:0:0x33404040, in Xorg [1243], reason: Ring hung, action: reset [4502933.821393] [drm] GPU hangs can indicate a bug anywhere in the entire gfx stack, including userspace. [4502933.821394] [drm] Please file a _new_ bug report on bugs.freedesktop.org against DRI -> DRM/Intel [4502933.821395] [drm] drm/i915 developers can then reassign to the right component if it's not a kernel issue. [4502933.821396] [drm] The gpu crash dump is required to analyze gpu hangs, so please always attach it. [4502933.821397] [drm] GPU crash dump saved to /sys/class/drm/card0/error [4502933.821399] i915: render error detected, EIR: 0x00000010 [4502933.821403] i915: IPEIR: 0x00000000 [4502933.821404] i915: IPEHR: 0xccbfbfbf [4502933.821405] i915: INSTDONE_0: 0xffffffff [4502933.821406] i915: INSTDONE_1: 0xbfffffff [4502933.821407] i915: INSTDONE_2: 0x00000000 [4502933.821408] i915: INSTDONE_3: 0x00000000 [4502933.821410] i915: INSTPS: 0x8001e022 [4502933.821411] i915: ACTHD: 0x0aae4d88 [4502933.821412] i915: page table error [4502933.821413] i915: PGTBL_ER: 0x00000002 [4502933.821446] [drm:i915_handle_error [i915]] *ERROR* EIR stuck: 0x00000010, masking [4502933.821519] drm/i915: Resetting chip after gpu hang
We seem to have completely neglected this bug. Apologies. I'm going to assume we've fixed the bug, closing. Please reopen if the problem persists with latest kernels.
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