[Bug 109948] [945G] GPU hang

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=109948

--- Comment #3 from Chris Wilson <chris at chris-wilson.co.uk> ---

0x0080c06c:      0x7d060014: 3DSTATE_PIXEL_SHADER_CONSTANTS
0x0080c074:      0xbd800000:    C0.X = -0.062500
0x0080c078:      0xbf000000:    C0.Y = -0.500000
0x0080c07c:      0xbf000000:    C0.Z = -0.500000
0x0080c080:      0x00000000:    C0.W = 0.000000
0x0080c084:      0x3f9507c8:    C1.X = 1.164300
0x0080c088:      0x00000000:    C1.Y = 0.000000
0x0080c08c:      0x3fcc432d:    C1.Z = 1.595800
0x0080c090:      0x00000000:    C1.W = 0.000000
0x0080c094:      0x3f9507c8:    C2.X = 1.164300
0x0080c098:      0xbec890d6:    C2.Y = -0.391730
0x0080c09c:      0xbf501a37:    C2.Z = -0.812900
0x0080c0a0:      0x00000000:    C2.W = 0.000000
0x0080c0a4:      0x3f9507c8:    C3.X = 1.164300
0x0080c0a8:      0x40011687:    C3.Y = 2.017000
0x0080c0ac:      0x00000000:    C3.Z = 0.000000
0x0080c0b0:      0x00000000:    C3.W = 0.000000
0x0080c0b4:      0x00000000:    C4.X = 0.000000
0x0080c0b8:      0x00000000:    C4.Y = 0.000000
0x0080c0bc:      0x00000000:    C4.Z = 0.000000
0x0080c0c0:      0x00000000:    C4.W = 0.000000

  ACTHD: 0x00000000 0080c0a0
  IPEHR: 0xbf501a37

So it tried to execute data, which implies it misparsed the
3DSTATE_PIXEL_SHADER_CONSTANTS command. I wonder if there's a cacheline
restriction there or something? The batch buffer doesn't look incoherent or
damage, so looks more likely it died in the CS.

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