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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - i915 0000:00:02.0: GPU HANG: ecode 7:1:0xfffffffe, in Xwayland [10802], hang on rcs0"
href="https://bugs.freedesktop.org/show_bug.cgi?id=110969#c1">Comment # 1</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - i915 0000:00:02.0: GPU HANG: ecode 7:1:0xfffffffe, in Xwayland [10802], hang on rcs0"
href="https://bugs.freedesktop.org/show_bug.cgi?id=110969">bug 110969</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>rcs0 command stream:
IDLE?: no
START: 0x00001000
HEAD: 0x30813250 [0x00013228]
TAIL: 0x000134c8 [0x000132e0, 0x00013308]
CTL: 0x0001f001
MODE: 0x00004000
HWS: 0x7fffe000
ACTHD: 0x00000000 30813250
IPEIR: 0x00000000
IPEHR: 0x79120000
INSTDONE: 0xffffbff8
SC_INSTDONE: 0xfffffffe
SAMPLER_INSTDONE[0][0]: 0xffffffff
ROW_INSTDONE[0][0]: 0xffffffff
batch: [0x00000000_7fff8000, 0x00000000_7fff9000]
BBADDR: 0x00000000_7fff1740
BB_STATE: 0x00000000
INSTPS: 0x00000501
INSTPM: 0x00000080
FADDR: 0x00000000 00014250
RC PSMI: 0x00000010
FAULT_REG: 0x00000000
SYNC_0: 0x00000000
SYNC_1: 0x00000000
GFX_MODE: 0x00002a00
PP_DIR_BASE: 0x7f9f0000
...
0x0001422c: 0x00002220: dword 1
0x00014230: 0xffffffff: dword 2
0x00014234: 0x11000001: MI_LOAD_REGISTER_IMM
0x00014238: 0x00002228: dword 1
0x0001423c: 0x7f9f0000: dword 2
0x00014240: 0x04000000: MI_ARB_ON_OFF
0x00014244: 0x00000000: MI_NOOP
0x00014248: 0x0c000000: MI_SET_CONTEXT
0x0001424c: 0x7fff010c: gtt offset = 0x7fff0000
0x00014250: 0x00000000: MI_NOOP
0x00014254: 0x04000001: MI_ARB_ON_OFF
0x00014258: 0x7a000002: PIPE_CONTROL
0x0001425c: 0x00100002: no write, cs stall, stall at scoreboard,
0x00014260: 0x00000000:
0x00014264: 0x00000000:
Suggests it died in the context restore.
If there is a link with mempressure, we might not keeping the context image
intact over paging.</pre>
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