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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - [SKL]GPU HANG: ecode 9:0:0x00000000, hang on rcs0"
href="https://bugs.freedesktop.org/show_bug.cgi?id=110982#c1">Comment # 1</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - [SKL]GPU HANG: ecode 9:0:0x00000000, hang on rcs0"
href="https://bugs.freedesktop.org/show_bug.cgi?id=110982">bug 110982</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>rcs:
START: 0x0000d000
HEAD: 0x00e01470 [0x00000000]
head = 0x00001470, wraps = 7
TAIL: 0x00001470 [0x00000000, 0x00000000]
CTL: 0x00003001
len=16384, enabled
MODE: 0x00000000
HWS: 0xffffe000
ACTHD: 0x00000000 00e01470
at ring: 0x00000000
IPEIR: 0x00000000
IPEHR: 0x02800000
ELSP[0]: pid 688, ban score 0, seqno 3:0002b24b!, prio 2, emitted
-1119ms, start 0000d000, head 000013d0, tail 00001470
ELSP[1]: pid 611, ban score 0, seqno 2:0002b24c, prio 0, emitted
-1114ms, start 00009000, head 00003b60, tail 00003bf8
The CS reached the end of the ring, but the GPU failed to switch contexts.
Then the GPU failed to respond to reset requests, further indicating it had
suffered a terminal shock. Immediate suspicion would be on powergating, for the
similarity with say <a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - Stability issue in i915 with transcode operation"
href="show_bug.cgi?id=110450">bug 110450</a>.</pre>
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