[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 #15 from Vincent Legoll <vincent.legoll at gmail.com> ---
Another one today...

[ 2229.808173] [drm] stuck on render ring
[ 2229.809649] [drm] GPU HANG: ecode 4:0:0xfaffffff, in Xorg [605], reason:
Ring hung, action: reset
[ 2229.809653] [drm] GPU hangs can indicate a bug anywhere in the entire gfx
stack, including userspace.
[ 2229.809655] [drm] Please file a _new_ bug report on bugs.freedesktop.org
against DRI -> DRM/Intel
[ 2229.809657] [drm] drm/i915 developers can then reassign to the right
component if it's not a kernel issue.
[ 2229.809659] [drm] The gpu crash dump is required to analyze gpu hangs, so
please always attach it.
[ 2229.809661] [drm] GPU crash dump saved to /sys/class/drm/card0/error
[ 2229.809664] i915: render error detected, EIR: 0x00000010
[ 2229.809668] i915:   IPEIR: 0x00000000
[ 2229.809671] i915:   IPEHR: 0x05000000
[ 2229.809673] i915:   INSTDONE_0: 0xffffffff
[ 2229.809675] i915:   INSTDONE_1: 0xbfffffff
[ 2229.809678] i915:   INSTDONE_2: 0x00000000
[ 2229.809680] i915:   INSTDONE_3: 0x00000000
[ 2229.809682] i915:   INSTPS: 0x8001e120
[ 2229.809684] i915:   ACTHD: 0x00cf0ea4
[ 2229.809687] i915: page table error
[ 2229.809689] i915:   PGTBL_ER: 0x00100000
[ 2229.809698] [drm:i915_handle_error] *ERROR* EIR stuck: 0x00000010, masking
[ 2229.809774] drm/i915: Resetting chip after gpu hang
[ 2241.808135] [drm] stuck on render ring
[ 2241.812307] [drm] GPU HANG: ecode 4:0:0xfaffffff, in Xorg [605], reason:
Ring hung, action: reset
[ 2241.812379] [drm:i915_set_reset_status] *ERROR* gpu hanging too fast,
banning!
[ 2241.812420] drm/i915: Resetting chip after gpu hang


root at debian:/home/vince# uname -a
Linux debian 4.1.0-12639-gb1be9ea #13 SMP PREEMPT Sat Jul 4 18:40:25 CEST 2015
x86_64 GNU/Linux


# sensors
coretemp-isa-0000
Adapter: ISA adapter
Core 0:       +60.0°C  (high = +105.0°C, crit = +105.0°C)
Core 1:       +60.0°C  (high = +105.0°C, crit = +105.0°C)

they eve were a few degs lower just after that hang...

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