[Bug 111379] [CI][DRMTIP] igt at gem_eio@unwedge-stress - fail - Failed assertion: __gem_execbuf(fd, execbuf) == 0

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=111379

--- Comment #2 from Chris Wilson <chris at chris-wilson.co.uk> ---
Hmm,

<7> [297.642048] hangcheck bcs0
<7> [297.642063] hangcheck      Awake? 4
<7> [297.642074] hangcheck      Hangcheck: 8000 ms ago
<7> [297.642084] hangcheck      Reset count: 0 (global 294)
<7> [297.642094] hangcheck      Requests:
<7> [297.642119] hangcheck              active  6:12ce2*  @ 8512ms:
gem_eio[1149]
<7> [297.642130] hangcheck              ring->start:  0x007f1000
<7> [297.642140] hangcheck              ring->head:   0x00003890
<7> [297.642149] hangcheck              ring->tail:   0x00002a50
<7> [297.642158] hangcheck              ring->emit:   0x00002a50
<7> [297.642168] hangcheck              ring->space:  0x00000e00
<7> [297.642177] hangcheck              ring->hwsp:   0x007eb100

that ring->space suggests we blocked waiting for space (and so hung before we
ourselves performed the reset).

reset_stress() expects to submit 21 batches without a problem, that might have
been optimistic.

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