[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 #17 from Vincent Legoll <vincent.legoll at gmail.com> ---
Rebooted in the same kernel, ran some "make -j2" in a c++ project and a vlc at
the same time, went good for a few minutes (~10mins) then I tried resizing the
vlc window and it crashed again. The X server had a problem, maybe crashed, as
I was logged out.

I'll retry that to see if it's a good reproducer...

[  938.804033] [drm] stuck on render ring
[  938.805597] [drm] GPU HANG: ecode 4:0:0xfaffffff, in Xorg [616], reason:
Ring hung, action: reset
[  938.805601] [drm] GPU hangs can indicate a bug anywhere in the entire gfx
stack, including userspace.
[  938.805603] [drm] Please file a _new_ bug report on bugs.freedesktop.org
against DRI -> DRM/Intel
[  938.805605] [drm] drm/i915 developers can then reassign to the right
component if it's not a kernel issue.
[  938.805607] [drm] The gpu crash dump is required to analyze gpu hangs, so
please always attach it.
[  938.805609] [drm] GPU crash dump saved to /sys/class/drm/card0/error
[  938.805613] i915: render error detected, EIR: 0x00000010
[  938.805621] i915:   IPEIR: 0x00000000
[  938.805624] i915:   IPEHR: 0x05000000
[  938.805627] i915:   INSTDONE_0: 0xffffffff
[  938.805629] i915:   INSTDONE_1: 0xbfffffff
[  938.805631] i915:   INSTDONE_2: 0x00000000
[  938.805634] i915:   INSTDONE_3: 0x00000000
[  938.805636] i915:   INSTPS: 0x8001e120
[  938.805638] i915:   ACTHD: 0x00cf0eec
[  938.805641] i915: page table error
[  938.805643] i915:   PGTBL_ER: 0x00100000
[  938.805660] [drm:i915_handle_error] *ERROR* EIR stuck: 0x00000010, masking
[  938.805745] drm/i915: Resetting chip after gpu hang
[  946.804178] [drm] stuck on render ring
[  946.805667] [drm] GPU HANG: ecode 4:0:0xfaffffff, in Xorg [616], reason:
Ring hung, action: reset
[  946.805742] [drm:i915_set_reset_status] *ERROR* gpu hanging too fast,
banning!
[  946.805782] drm/i915: Resetting chip after gpu hang
[  947.995796] vlc[1200]: segfault at 18 ip 00007f831ea5da50 sp
00007f830c1fdfa8 error 4 in libxcb.so.1.1.0[7f831ea4f000+21000]

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