[Bug 97252] [drm] stuck on render ring

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=97252

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
         QA Contact|intel-gfx-bugs at lists.freede |
                   |sktop.org                   |
           Assignee|intel-gfx-bugs at lists.freede |idr at freedesktop.org
                   |sktop.org                   |
            Version|XOrg git                    |12.0
          Component|DRM/Intel                   |Drivers/DRI/i915
            Product|DRI                         |Mesa

--- Comment #1 from yann <yann.argotti at intel.com> ---

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 0x0eb81010, with 0x7a000003 (PIPE_CONTROL) as IPEHR (previously there was
another 3DPRIMITIVE followed by a PIPE_CONTROL).

Batch extract (around 0x0eb81010):

0x0eb80fe0:      0x7b000005: 3DPRIMITIVE:
0x0eb80fe4:      0x0000000f:    rect list sequential
0x0eb80fe8:      0x00000003:    vertex count
0x0eb80fec:      0x00000000:    start vertex
0x0eb80ff0:      0x00000001:    instance count
0x0eb80ff4:      0x00000000:    start instance
0x0eb80ff8:      0x00000000:    index bias
0x0eb80ffc:      0x7a000003: PIPE_CONTROL
0x0eb81000:      0x00101001:    no write, cs stall, render target cache flush,
depth cache flush,
0x0eb81004:      0x00000000:    destination address
0x0eb81008:      0x00000000:    immediate dword low
0x0eb8100c:      0x00000000:    immediate dword high
0x0eb81010:      0x7a000003: PIPE_CONTROL
0x0eb81014:      0x00000c10:    no write, instruction cache invalidate, texture
cache invalidate, vf fetch invalidate,
0x0eb81018:      0x00000000:    destination address
0x0eb8101c:      0x00000000:    immediate dword low
0x0eb81020:      0x00000000:    immediate dword high

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