[Bug 94691] GPU HANG: ecode 9:0:0x87f93ff9 on Skylake with intel-next kernel

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=94691

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Version|DRI git                     |git
            Product|DRI                         |Mesa
           Assignee|intel-gfx-bugs at lists.freede |idr at freedesktop.org
                   |sktop.org                   |
         QA Contact|intel-gfx-bugs at lists.freede |
                   |sktop.org                   |
          Component|DRM/Intel                   |Drivers/DRI/i915

--- Comment #1 from yann <yann.argotti at intel.com> ---
Assigning to Mesa product.

>From this error dump, hung is happening in render ring batch with active head
at 0xfe69135c, with 0x78260000 (3DSTATE_BINDING_TABLE_POINTERS_VS) as IPEHR.

Batch extract (around 0xfe69135c):

0xfe691328:      0x78170009: 3D UNKNOWN: 3d_965 opcode = 0x7817
0xfe69132c:      0x00000000: MI_NOOP
0xfe691330:      0x00000000: MI_NOOP
0xfe691334:      0x00000000: MI_NOOP
0xfe691338:      0x00000000: MI_NOOP
0xfe69133c:      0x00000000: MI_NOOP
0xfe691340:      0x00000000: MI_NOOP
0xfe691344:      0x00000000: MI_NOOP
0xfe691348:      0x00000000: MI_NOOP
0xfe69134c:      0x00000000: MI_NOOP
0xfe691350:      0x00000000: MI_NOOP
0xfe691354:      0x78260000: 3DSTATE_BINDING_TABLE_POINTERS_VS
0xfe691358:      0x00000000:    dword 1
0xfe69135c:      0x782a0000: 3DSTATE_BINDING_TABLE_POINTERS_PS
0xfe691360:      0x00006840:    dword 1
Bad length 9 in 3DSTATE_VS, expected 6-6
0xfe691364:      0x78100007: 3DSTATE_VS
0xfe691368:      0x00000740:    kernel pointer
0xfe69136c:      0x00000000:    SPF=0, VME=0, Sampler Count 0, Binding table
count 0
0xfe691370:      0x00000000:    scratch offset
0xfe691374:      0x00000000:    Dispatch GRF start 0, VUE read length 0, VUE
read offset 0
0xfe691378:      0x00000000:    Max Threads 1, Vertex Cache enable, VS func
disable

Moreover, since your kernel is 4.5.0-3.m1+, you may also consider to upgrade
your kernel since there are additional workarounds for skl.

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