[Bug 98860] [SKL] GPU HANG: ecode 9:0:0x84dffff8, in X [2571], reason: Ring hung, action: reset

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=98860

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Assignee|intel-gfx-bugs at lists.freede |intel-3d-bugs at lists.freedes
                   |sktop.org                   |ktop.org
          Component|DRM/Intel                   |Drivers/DRI/i965
            Version|XOrg git                    |unspecified
            Product|DRI                         |Mesa
         QA Contact|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 were workaround for SKL and 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: mark as REOPENED if you can reproduce and
RESOLVED/* if you cannot reproduce.

 In parallel, assigning to Mesa product.

Kernel:  4.4.26-gentoo
Platform: Skylake (pci id: 0x1916)
Mesa: [Please confirm your mesa version]

>From this error dump, hung is happening in render ring batch with active head
at 0xf34b942c, with 0x7b000005 (3DPRIMITIVE) as IPEHR.

Batch extract (around 0xf34b942c):

0xf34b940c:      0x78090005: 3DSTATE_VERTEX_ELEMENTS
0xf34b9410:      0x02000000:    buffer 0: invalid, type 0x0000, src offset
0x0000 bytes
0xf34b9414:      0x22220000:    (0.0, 0.0, 0.0, 0.0), dst offset 0x00 bytes
0xf34b9418:      0x02f60000:    buffer 0: invalid, type 0x00f6, src offset
0x0000 bytes
0xf34b941c:      0x11230000:    (X, Y, 0.0, 1.0), dst offset 0x00 bytes
0xf34b9420:      0x02f60004:    buffer 0: invalid, type 0x00f6, src offset
0x0004 bytes
0xf34b9424:      0x11230000:    (X, Y, 0.0, 1.0), dst offset 0x00 bytes
Bad length 7 in (null), expected 6-6
0xf34b9428:      0x7b000005: 3DPRIMITIVE: fail sequential
0xf34b942c:      0x00000000:    vertex count
0xf34b9430:      0x0000000c:    start vertex
0xf34b9434:      0x0000017e:    instance count
0xf34b9438:      0x00000001:    start instance
0xf34b943c:      0x00000000:    index bias
0xf34b9440:      0x00000000: MI_NOOP

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