[Bug 95464] GPU hang issues: GPU HANG: ecode 6:0:0x85fffffc, in compiz [2881], reason: Ring hung, action: reset

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=95464

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

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

--- Comment #2 from yann <yann.argotti at intel.com> ---
Assigning to Mesa product (please let me know if I am mistaken with this GPU
Hang).

>From this error dump, hung is happening in render ring batch with active head
at 0x294c46f8, with 0x7a000003 (PIPE_CONTROL) as IPEHR.

Batch extract (around 0x294c46f8):

0x294c46b8:      0x78090003: 3DSTATE_VERTEX_ELEMENTS
0x294c46bc:      0x02000000:    buffer 0: valid, type 0x0000, src offset 0x0000
bytes
0x294c46c0:      0x11110000:    (X, Y, Z, W), dst offset 0x00 bytes
0x294c46c4:      0x06000000:    buffer 1: valid, type 0x0000, src offset 0x0000
bytes
0x294c46c8:      0x11110000:    (X, Y, Z, W), dst offset 0x00 bytes
0x294c46cc:      0x7b001c04: 3DPRIMITIVE: quad list sequential
0x294c46d0:      0x00000004:    vertex count
0x294c46d4:      0x00000000:    start vertex
0x294c46d8:      0x00000001:    instance count
0x294c46dc:      0x00000000:    start instance
0x294c46e0:      0x00000000:    index bias
0x294c46e4:      0x7a000003: PIPE_CONTROL
0x294c46e8:      0x00100002:    no write, cs stall, stall at scoreboard,
0x294c46ec:      0x00000000:    destination address
0x294c46f0:      0x00000000:    immediate dword low
0x294c46f4:      0x00000000:    immediate dword high
0x294c46f8:      0x7a000003: PIPE_CONTROL
0x294c46fc:      0x00004000:    qword write,
0x294c4700:      0x068fa004:    destination address
0x294c4704:      0x00000000:    immediate dword low
0x294c4708:      0x00000000:    immediate dword high
0x294c470c:      0x78021302: 3DSTATE_SAMPLER_STATE_POINTERS: VS mod 1, GS mod
1, PS mod 1
0x294c4710:      0x00000000:    VS sampler state
0x294c4714:      0x00000000:    GS sampler state
0x294c4718:      0x00007000:    WM sampler state

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