[Bug 91052] [IVB] GPU HANG: ecode 7:0:0x85fffff8, reason: Ring hung

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=91052

--- Comment #5 from yann <yann.argotti at intel.com> ---
(In reply to Markus Härer from comment #3)
> Created attachment 116673 [details]
> Archlinux /sys/class/drm/card0/error

Markus, your issue is different from Jiri's one. There were improvements pushed
in kernel and Mesa that will benefit to your system, so please re-test with
latest kernel & Mesa to see if this issue is still occurring.

>From this error dump, hung is happening in render ring batch with active head
at 0x037070f8, with 0x60020100 (CONSTANT_BUFFER) as IPEHR, which may require an
update of your mesa version.

Batch extract (around 0x037070f8):

0x037070dc:      0x78090003: 3DSTATE_VERTEX_ELEMENTS
0x037070e0:      0x04850000:    buffer 0: valid, type 0x0085, src offset 0x0000
bytes
0x037070e4:      0x11230000:    (X, Y, 0.0, 1.0), dst offset 0x00 bytes
0x037070e8:      0x04850008:    buffer 0: valid, type 0x0085, src offset 0x0008
bytes
0x037070ec:      0x11230000:    (X, Y, 0.0, 1.0), dst offset 0x00 bytes
0x037070f0:      0x60020100: CONSTANT_BUFFER: valid
0x037070f4:      0x042af002:    offset: 0x042af000, length: 192 bytes
0x037070f8:      0x7b009004: 3DPRIMITIVE: tri list random
0x037070fc:      0x00000006:    vertex count
0x03707100:      0x00000000:    start vertex
0x03707104:      0x00000001:    instance count
0x03707108:      0x00000000:    start instance
0x0370710c:      0x00000000:    index bias

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