[Bug 92688] GPU hang on HP elitebook 820

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=92688

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
          Component|DRM/Intel                   |Drivers/DRI/i915
         QA Contact|intel-gfx-bugs at lists.freede |
                   |sktop.org                   |
            Version|XOrg git                    |unspecified

--- Comment #7 from yann <yann.argotti at intel.com> ---
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 the meantime, assigning to Mesa product.

Kernel: 4.2.4
Platform: Broadwell-U (pci id: 0x1616)
Mesa: [Please confirm your mesa version]

>From this error dump, hung is happening in render ring batch with active head
at 0x0a786b2c, with 0x79000002 (3DSTATE_DRAWING_RECTANGLE) as IPEHR.

Batch extract (around 0x0a786b2c):

0x0a786b0c:      0x7b000005: 3DPRIMITIVE: fail sequential
0x0a786b10:      0x00000000:    vertex count
0x0a786b14:      0x0000011d:    start vertex
0x0a786b18:      0x00001946:    instance count
0x0a786b1c:      0x00000001:    start instance
0x0a786b20:      0x00000000:    index bias
0x0a786b24:      0x00000000: MI_NOOP
0x0a786b28:      0x79000002: 3DSTATE_DRAWING_RECTANGLE
0x0a786b2c:      0x00000000:    top left: 0,0
0x0a786b30:      0x039f04fd:    bottom right: 1277,927
0x0a786b34:      0x00000000:    origin: 0,0
Bad count in PIPE_CONTROL
0x0a786b38:      0x7a000004: PIPE_CONTROL: no write, no depth stall, no RC
write flush, no inst flush
0x0a786b3c:      0x00101400:    destination address
0x0a786b40:      0x00000000:    immediate dword low
0x0a786b44:      0x00000000:    immediate dword high
0x0a786b50:      0x784d0000: 3D UNKNOWN: 3d_965 opcode = 0x784d

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