[Bug 74053] [ivb] hang on pageflip

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=74053

Chris Wilson <chris at chris-wilson.co.uk> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|GPU hang on kernel 3.13.0   |[ivb] hang on pageflip

--- Comment #1 from Chris Wilson <chris at chris-wilson.co.uk> ---
It appears to have hung trying to execute a pageflip.

0x00007eb0:      0x0a000001: MI_DISPLAY_BUFFER_INFO
0x00007eb4:      0x00001e01:    dword 1
0x00007eb8:      0x06446000:    dword 2
0x00007ebc:      0x00000000: MI_NOOP

which looks consistent with

  fence[14] = 6c3d03b06446001
    valid, x-tiled, pitch: 7680, start: 0x06446000, size: 8355840

and

Pinned [33]:
...
  06446000  8355840 41 00 0 0 P X dirty uncached (name: 49) (fence: 14)

Can you please attach the full dmesg leading to the hang? Does this happen
frequently or was this a one-off event?

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