[Bug 93672] [HSW drm] stuck on render ring + Xorg segfault

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=93672

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
           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                   |
            Version|XOrg git                    |unspecified
          Component|DRM/Intel                   |Drivers/DRI/i915

--- Comment #8 from yann <yann.argotti at intel.com> ---
(In reply to Lonni J Friedman from comment #0)
> Created attachment 120967 [details]
> /sys/class/drm/card0/error
> 

Lonni, I recommend you to update your system (kernel as well as Mesa driver) to
benefit of all fix and enhancement done. Please re-test and confirm if this
issue is still occurring or not.

In parallel, 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 0x63831560, with 0x7a000002 (PIPE_CONTROL) as IPEHR.

Batch extract (around 0x63831560):

0x63831534:      0x7b000005: 3DPRIMITIVE:
0x63831538:      0x0000000f:    rect list sequential
0x6383153c:      0x00003498:    vertex count
0x63831540:      0x0000497d:    start vertex
0x63831544:      0x00000001:    instance count
0x63831548:      0x00000000:    start instance
0x6383154c:      0x00000000:    index bias
0x63831550:      0x7a000002: PIPE_CONTROL
0x63831554:      0x00100002:    no write, cs stall, stall at scoreboard,
0x63831558:      0x00000000:
0x6383155c:      0x00000000:
0x63831560:      0x782f0000: 3DSTATE_SAMPLER_STATE_POINTERS_PS
0x63831564:      0x000018c0:    dword 1
0x63831568:      0x782a0000: 3DSTATE_BINDING_TABLE_POINTERS_PS
0x6383156c:      0x0000fde0:    dword 1

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

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