[Bug 98794] [SKL] GPU HANG: ecode 9:0:0x84dffff8, in Xorg [562], reason: Hang on render ring, action: reset

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=98794

yann <yann.argotti at intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Product|DRI                         |Mesa
            Version|XOrg git                    |unspecified
          Component|DRM/Intel                   |Drivers/DRI/i965
         QA Contact|intel-gfx-bugs at lists.freede |intel-3d-bugs at lists.freedes
                   |sktop.org                   |ktop.org
           Assignee|intel-gfx-bugs at lists.freede |intel-3d-bugs at lists.freedes
                   |sktop.org                   |ktop.org
             Status|NEW                         |NEEDINFO

--- Comment #1 from yann <yann.argotti at intel.com> ---
There are constant improvements pushed in kernel and Mesa that will benefit to
your system, so please re-test with latest kernel & Mesa (12 or 13) to see if
this issue is still occurring. mark as REOPENED    if you can reproduce and
RESOLVED/* if you cannot reproduce.

In parallel, assigning to Mesa product.

Kernel: 4.8.7-pf
Platform: SKL (pci id: 0x191e, pci revision: 0x07, pci subsystem: 1043:1cfd)
Mesa: [Please confirm your mesa version]

>From this error dump, hung is happening in render ring batch with active head
at 0xea3377e8, with 0x7b000005 (3DPRIMITIVE) as IPEHR.

Batch extract (around 0xea3377e8):

0xea3377c8:      0x78090005: 3DSTATE_VERTEX_ELEMENTS
0xea3377cc:      0x02000000:    buffer 0: invalid, type 0x0000, src offset
0x0000 bytes
0xea3377d0:      0x22220000:    (0.0, 0.0, 0.0, 0.0), dst offset 0x00 bytes
0xea3377d4:      0x02f60000:    buffer 0: invalid, type 0x00f6, src offset
0x0000 bytes
0xea3377d8:      0x11230000:    (X, Y, 0.0, 1.0), dst offset 0x00 bytes
0xea3377dc:      0x02f60004:    buffer 0: invalid, type 0x00f6, src offset
0x0004 bytes
0xea3377e0:      0x11230000:    (X, Y, 0.0, 1.0), dst offset 0x00 bytes
Bad length 7 in (null), expected 6-6
0xea3377e4:      0x7b000005: 3DPRIMITIVE: fail sequential
0xea3377e8:      0x00000000:    vertex count
0xea3377ec:      0x00000003:    start vertex
0xea3377f0:      0x0000006a:    instance count
0xea3377f4:      0x00000001:    start instance
0xea3377f8:      0x00000000:    index bias
0xea3377fc:      0x00000000: MI_NOOP

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