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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - [CI][SHARDS] igt@gem_sync@basic-all - fail - Failed assertion: !"GPU hung""
href="https://bugs.freedesktop.org/show_bug.cgi?id=111598#c2">Comment # 2</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - [CI][SHARDS] igt@gem_sync@basic-all - fail - Failed assertion: !"GPU hung""
href="https://bugs.freedesktop.org/show_bug.cgi?id=111598">bug 111598</a>
from <span class="vcard"><a class="email" href="mailto:chris@chris-wilson.co.uk" title="Chris Wilson <chris@chris-wilson.co.uk>"> <span class="fn">Chris Wilson</span></a>
</span></b>
<pre><7> [2140.194405] hangcheck rcs0
<7> [2140.194409] hangcheck Awake? 1
<7> [2140.194411] hangcheck Hangcheck: 12032 ms ago
<7> [2140.194413] hangcheck Reset count: 0 (global 49)
<7> [2140.194414] hangcheck Requests:
<7> [2140.194417] hangcheck MMIO base: 0x00002000
<7> [2140.194420] hangcheck CCID: 0x7fff610d
<7> [2140.194423] hangcheck RING_START: 0x00001000
<7> [2140.194425] hangcheck RING_HEAD: 0x00001350
<7> [2140.194428] hangcheck RING_TAIL: 0x00000638
<7> [2140.194432] hangcheck RING_CTL: 0x00003001
<7> [2140.194435] hangcheck RING_MODE: 0x00004040
<7> [2140.194438] hangcheck RING_IMR: fffffffe
<7> [2140.194440] hangcheck ACTHD: 0x00000000_fa101a00
<7> [2140.194443] hangcheck BBADDR: 0x00000000_fa104879
<7> [2140.194446] hangcheck DMA_FADDR: 0x00000000_fa107400
<7> [2140.194448] hangcheck IPEIR: 0x00000000
<7> [2140.194451] hangcheck IPEHR: 0x0042001e
<7> [2140.194455] hangcheck E 3:1e3294- prio=2147483647 @
13752ms: [i915]
<7> [2140.194457] hangcheck HWSP:
<7> [2140.194460] hangcheck [0000] 00000001 00000000 00000000 00000000 00000000
00000000 00000000 00000000
<7> [2140.194463] hangcheck [0020] 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000
<7> [2140.194464] hangcheck *
<7> [2140.194466] hangcheck [0100] 001e3292 00000000 00000000 00000000 00000000
00000000 00000000 00000000
<7> [2140.194469] hangcheck [0120] 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000
<7> [2140.194470] hangcheck *
<7> [2140.194475] hangcheck Idle? no
<7> [2140.194477] hangcheck Signals:
<7> [2140.194479] hangcheck [3:1e3294] @ 13752ms
IPEHR doesn't correspond to anything natural. Looks like another instance where
we have strange behaviour on the ringbuffer overshooting its TAIL?</pre>
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