[Bug 107852] [CI][DRMTIP]igt at gem_wait@write-wait-blt - fail - Failed assertion: __gem_wait(fd, &wait) == 0, Last errno: 62, Timer expired

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=107852

--- Comment #1 from Chris Wilson <chris at chris-wilson.co.uk> ---
The spin batch timer thread never fired, or at least did not take effect -- as
also the spinner was not terminated on atexit. Hmm. More likely that the
cancellation didn't work then.

<7>[   81.665572] missed_breadcrumb bcs0 missed breadcrumb at
intel_breadcrumbs_hangcheck+0x51/0x70 [i915]
<7>[   81.665608] missed_breadcrumb     current seqno 0, last 1, hangcheck 0
[2143 ms]
<7>[   81.665614] missed_breadcrumb     Reset count: 0 (global 0)
<7>[   81.665621] missed_breadcrumb     Requests:
<7>[   81.665636] missed_breadcrumb             first  1 [6:3] @ 2142ms: bcs0
<7>[   81.665643] missed_breadcrumb             last   1 [6:3] @ 2142ms: bcs0
<7>[   81.665666] missed_breadcrumb             active 1 [6:3] @ 2142ms: bcs0
<7>[   81.665672] missed_breadcrumb             ring->start:  0x00522000
<7>[   81.665677] missed_breadcrumb             ring->head:   0x00000140
<7>[   81.665682] missed_breadcrumb             ring->tail:   0x000001e8
<7>[   81.665687] missed_breadcrumb             ring->emit:   0x000001e8
<7>[   81.665692] missed_breadcrumb             ring->space:  0x0001fdd8
<7>[   81.665699] missed_breadcrumb [head 0140, postfix 01c0, tail 01e8, batch
0x00000000_00040000]:
<7>[   81.665734] missed_breadcrumb [0000] 13244001 00000104 00000000 00000000
11000001 00022220 ffffffff 11000001
<7>[   81.665742] missed_breadcrumb [0020] 00022228 00010000 13244001 00000104
00000000 00000000 12400001 00022228
<7>[   81.665749] missed_breadcrumb [0040] 7fffc000 00000000 13244001 00000104
00000000 00000000 13204001 00000104
<7>[   81.665757] missed_breadcrumb [0060] 00000000 00000000 18800100 00040000
13204001 00000104 00000000 00000000
<7>[   81.665764] missed_breadcrumb [0080] 11000001 00002044 00000001 11000001
00012040 00000001 10800001 000000c0
<7>[   81.665770] missed_breadcrumb [00a0] 00000001 01000000
<7>[   81.666259] missed_breadcrumb     RING_START: 0x00522000
<7>[   81.666267] missed_breadcrumb     RING_HEAD:  0x000001b0
<7>[   81.666274] missed_breadcrumb     RING_TAIL:  0x000001e8
<7>[   81.666285] missed_breadcrumb     RING_CTL:   0x0001f001
<7>[   81.666297] missed_breadcrumb     RING_MODE:  0x00000000
<7>[   81.666306] missed_breadcrumb     RING_IMR: ffbfffff
<7>[   81.666315] missed_breadcrumb     SYNC_0: 0x00000000
<7>[   81.666324] missed_breadcrumb     SYNC_1: 0x00000000
<7>[   81.666334] missed_breadcrumb     ACTHD:  0x00000000_30800e74
<7>[   81.666344] missed_breadcrumb     BBADDR: 0x00000000_308021d1
<7>[   81.666353] missed_breadcrumb     DMA_FADDR: 0x00000000_30803680
<7>[   81.666362] missed_breadcrumb     IPEIR: 0x00000008
<7>[   81.666371] missed_breadcrumb     IPEHR: 0x00000000
<7>[   81.666380] missed_breadcrumb     PP_DIR_BASE: 0x00010000
<7>[   81.666389] missed_breadcrumb     PP_DIR_BASE_READ: 0x00000000
<7>[   81.666395] missed_breadcrumb     PP_DIR_DCLV: 0xffffffff
<7>[   81.666424] missed_breadcrumb             E 1 [6:3] @ 2143ms: bcs0
<7>[   81.666460] missed_breadcrumb             Queue priority: -2147483648
<7>[   81.666499] missed_breadcrumb     gem_wait [1154] waiting for 1
<7>[   81.666535] missed_breadcrumb IRQ? 0x0 (breadcrumbs? no)
<7>[   81.666545] missed_breadcrumb HWSP:
<7>[   81.666557] missed_breadcrumb [0000] 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000
<7>[   81.666563] missed_breadcrumb *
<7>[   81.666570] missed_breadcrumb Idle? no

Shows we were in never-never land and not spinning at all.

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