[Bug 94408] [drm] stuck on render ring

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=94408

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

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

--- Comment #2 from yann <yann.argotti at intel.com> ---
Not sure about cosmic ray ;) 
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 0x0fb95320, with 0x7a000003 (PIPE_CONTROL) as IPEHR.

Batch extract (around 0x0fb95320):

0x0fb952fc:      0x780e0000: 3DSTATE_CC_STATE_POINTERS
0x0fb95300:      0x00006381:    pointer to COLOR_CALC_STATE at 0x00006380
(changed)
0x0fb95304:      0x78250000: 3DSTATE_DEPTH_STENCIL_STATE_POINTERS
0x0fb95308:      0x00006341:    pointer to DEPTH_STENCIL_STATE at 0x00006340
(changed)
0x0fb9530c:      0x7a000003: PIPE_CONTROL
0x0fb95310:      0x00100002:    no write, cs stall, stall at scoreboard,
0x0fb95314:      0x00000000:    destination address
0x0fb95318:      0x00000000:    immediate dword low
0x0fb9531c:      0x00000000:    immediate dword high
0x0fb95320:      0x7a000003: PIPE_CONTROL
0x0fb95324:      0x00004000:    qword write,
0x0fb95328:      0x0784f000:    destination address
0x0fb9532c:      0x00000000:    immediate dword low
0x0fb95330:      0x00000000:    immediate dword high
0x0fb95334:      0x790d0002: 3DSTATE_MULTISAMPLE
0x0fb95338:      0x00000000:    dword 1
0x0fb9533c:      0x00000000:    dword 2
0x0fb95340:      0x00000000:    dword 3

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