[Bug 92262] [drm] GPU HANG: ecode 7:0:0x85dffffc, in chromium [6879], reason: Ring hung, action: reset

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=92262

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|DRM/Intel                   |Drivers/DRI/i915
            Version|unspecified                 |11.0
           Assignee|intel-gfx-bugs at lists.freede |idr at freedesktop.org
                   |sktop.org                   |
            Product|DRI                         |Mesa
         QA Contact|intel-gfx-bugs at lists.freede |
                   |sktop.org                   |

--- Comment #4 from yann <yann.argotti at intel.com> ---
We seem to have neglected the bug a bit, apologies.

There were 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.

In parallel, assigning to Mesa product (please let me know if I am mistaken
with this GPU Hang).

Kernel: 4.1.8-1-lts
Platform: Haswell ULT (pci id: 0x0a26)
Mesa: 11.0.2

>From this error dump, hung is happening in render ring batch with active head
at 0x0070d700, with 0x7a000003 (PIPE_CONTROL) as IPEHR.

We can note also:
ERROR: 0x00000105
    TLB page fault error (GTT entry not valid)
    Invalid page directory entry error
    Cacheline containing a PD was marked as invalid


Batch extract (around 0x0070d700):

0x0070d6d0:      0x7b000005: 3DPRIMITIVE:
0x0070d6d4:      0x0000000f:    rect list sequential
0x0070d6d8:      0x00000003:    vertex count
0x0070d6dc:      0x00000000:    start vertex
0x0070d6e0:      0x00000001:    instance count
0x0070d6e4:      0x00000000:    start instance
0x0070d6e8:      0x00000000:    index bias
0x0070d6ec:      0x7a000003: PIPE_CONTROL
0x0070d6f0:      0x00101c11:    no write, cs stall, render target cache flush,
instruction cache invalidate, texture cache invalidate, vf fetch invalidate,
depth cache flush,
0x0070d6f4:      0x00000000:    destination address
0x0070d6f8:      0x00000000:    immediate dword low
0x0070d6fc:      0x00000000:    immediate dword high
0x0070d700:      0x78210000: 3DSTATE_VIEWPORT_STATE_POINTERS_SF_CLIP
0x0070d704:      0x00006f40:    pointer to SF_CLIP viewport
0x0070d708:      0x78240000: 3DSTATE_BLEND_STATE_POINTERS
0x0070d70c:      0x00006f01:    pointer to BLEND_STATE at 0x00006f00 (changed)

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