[Bug 91133] [gm45] Invalid GTT entry during Command Fetch from CS prefetch crossing page boundary

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=91133

--- Comment #28 from Vincent Legoll <vincent.legoll at gmail.com> ---
I am still getting this on 4.2.0-rc2-00322-g8be5701

[   73.804083] [drm] stuck on render ring
[   73.805632] [drm] GPU HANG: ecode 4:0:0xfaffffff, in Xorg [589], reason:
Ring hung, action: reset
[   73.805636] [drm] GPU hangs can indicate a bug anywhere in the entire gfx
stack, including userspace.
[   73.805638] [drm] Please file a _new_ bug report on bugs.freedesktop.org
against DRI -> DRM/Intel
[   73.805640] [drm] drm/i915 developers can then reassign to the right
component if it's not a kernel issue.
[   73.805641] [drm] The gpu crash dump is required to analyze gpu hangs, so
please always attach it.
[   73.805644] [drm] GPU crash dump saved to /sys/class/drm/card0/error
[   73.805646] i915: render error detected, EIR: 0x00000010
[   73.805650] i915:   IPEIR: 0x00000000
[   73.805652] i915:   IPEHR: 0x05000000
[   73.805654] i915:   INSTDONE_0: 0xffffffff
[   73.805656] i915:   INSTDONE_1: 0xbfffffff
[   73.805658] i915:   INSTDONE_2: 0x00000000
[   73.805660] i915:   INSTDONE_3: 0x00000000
[   73.805661] i915:   INSTPS: 0x8001e120
[   73.805663] i915:   ACTHD: 0x02881eb4
[   73.805666] i915: page table error
[   73.805667] i915:   PGTBL_ER: 0x00100000
[   73.805687] [drm:i915_handle_error] *ERROR* EIR stuck: 0x00000010, masking
[   73.805790] drm/i915: Resetting chip after gpu hang

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