[Bug 111798] [CI][DRMTIP] igt at gem_wait@wait-bcs0 - fail - Failed assertion: __gem_wait(fd, &wait) == 0

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=111798

--- Comment #2 from Chris Wilson <chris at chris-wilson.co.uk> ---
<7> [508.184259] __intel_gt_set_wedged bcs0
<7> [508.184277] __intel_gt_set_wedged  Awake? 2
<7> [508.184294] __intel_gt_set_wedged  Hangcheck: 1471 ms ago
<7> [508.184311] __intel_gt_set_wedged  Reset count: 0 (global 12)
<7> [508.184327] __intel_gt_set_wedged  Requests:
<7> [508.184352] __intel_gt_set_wedged  MMIO base:  0x00022000
<7> [508.184418] __intel_gt_set_wedged  RING_START: 0x007f1000
<7> [508.184444] __intel_gt_set_wedged  RING_HEAD:  0x00002d38
<7> [508.184469] __intel_gt_set_wedged  RING_TAIL:  0x000030e8
<7> [508.184503] __intel_gt_set_wedged  RING_CTL:   0x00003001
<7> [508.184536] __intel_gt_set_wedged  RING_MODE:  0x00000000
<7> [508.184560] __intel_gt_set_wedged  RING_IMR: ffbfffff
<7> [508.184585] __intel_gt_set_wedged  ACTHD:  0x00000000_b7e0784c
<7> [508.184617] __intel_gt_set_wedged  BBADDR: 0x00000000_b7e0b7c9
<7> [508.184642] __intel_gt_set_wedged  DMA_FADDR: 0x00000000_b7e0ea00
<7> [508.184666] __intel_gt_set_wedged  IPEIR: 0x00000008
<7> [508.184802] __intel_gt_set_wedged  IPEHR: 0x00000000
<7> [508.184830] __intel_gt_set_wedged  PP_DIR_BASE: 0x7fdf0000
<7> [508.184855] __intel_gt_set_wedged  PP_DIR_BASE_READ: 0x00000000
<7> [508.184886] __intel_gt_set_wedged  PP_DIR_DCLV: 0xffffffff
<7> [508.185086] __intel_gt_set_wedged          E  5:fb7-  @ 1868ms:
gem_wait[1105]
<7> [508.185313] __intel_gt_set_wedged HWSP:
<7> [508.185337] __intel_gt_set_wedged [0000] 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000
<7> [508.185353] __intel_gt_set_wedged *
<7> [508.185376] __intel_gt_set_wedged [0100] 00000fb5 00000000 00000000
00000000 00000000 00000000 00000000 00000000
<7> [508.185398] __intel_gt_set_wedged [0120] 00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000
<7> [508.185414] __intel_gt_set_wedged *
<7> [508.185459] __intel_gt_set_wedged Idle? no
<7> [508.185476] __intel_gt_set_wedged Signals:
<7> [508.185606] __intel_gt_set_wedged  [5:fb7] @ 1868ms

that looks like the classic jump into scratch and execute the entirety of the
empty GTT. What's changed? iommu!

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