[Bug 108093] GPU HANG: ecode 8:1:0xd0bfc51f

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=108093

--- Comment #2 from Chris Wilson <chris at chris-wilson.co.uk> ---
It walked off the end of the batch:

bcs0 command stream:
  IDLE?: no
  START: 0x00009000
  HEAD:  0x00000170 [0x00000150]
  TAIL:  0x000001a0 [0x00000188, 0x000001a8]
  CTL:   0x00003001
  MODE:  0x00000000
  HWS:   0x00004000
  ACTHD: 0x00000001 00000048
  IPEIR: 0x00000008
  IPEHR: 0x2f403ae8
  INSTDONE: 0xfffffff7
  batch: [0x00000000_00942000, 0x00000000_00946000]
  BBADDR: 0x00000001_00000045

The batch is just a single blit with a valid MI_BBE; suggesting a TLB error or
some other incoherency.

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