[Bug 88630] [HSW] stuck on render ring, GPU HANG: ecode 0:0x85dffffd, in X [1773], reason: Ring hung, action: reset

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=88630

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

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

--- Comment #7 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: 3.18.2-hardened-r1
Platform: Haswell (pci id: 0x0402)
Mesa: [Please confirm your mesa version]

>From this error dump, hung is happening in render ring batch with active head
at 0x01208298, with 0x7a000002 (PIPE_CONTROL) as IPEHR.

Batch extract (around 0x01208298):

0x01208264:      0x78090005: 3DSTATE_VERTEX_ELEMENTS
0x01208268:      0x0a000000:    buffer 2: valid, type 0x0000, src offset 0x0000
bytes
0x0120826c:      0x22220000:    (0.0, 0.0, 0.0, 0.0), dst offset 0x00 bytes
0x01208270:      0x0af60000:    buffer 2: valid, type 0x00f6, src offset 0x0000
bytes
0x01208274:      0x11230000:    (X, Y, 0.0, 1.0), dst offset 0x00 bytes
0x01208278:      0x0a850004:    buffer 2: valid, type 0x0085, src offset 0x0004
bytes
0x0120827c:      0x11230000:    (X, Y, 0.0, 1.0), dst offset 0x00 bytes
0x01208280:      0x782a0000: 3DSTATE_BINDING_TABLE_POINTERS_PS
0x01208284:      0x0000ff40:    dword 1
0x01208288:      0x7a000002: PIPE_CONTROL
0x0120828c:      0x00100002:    no write, cs stall, stall at scoreboard,
0x01208290:      0x00000000:
0x01208294:      0x00000000:
0x01208298:      0x78080003: 3DSTATE_VERTEX_BUFFERS
0x0120829c:      0x0800400c:    buffer 1: sequential, pitch 12b
0x012082a0:      0x01208390:    buffer address
0x012082a4:      0xffffffff:    max index
0x012082a8:      0x00000000:    mbz

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