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<b><a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - [drm] HANG: ecode 9:0:0x9cba0f27, in kscreenlocker_g [103585], reason: Hang on rcs0, action: reset"
href="https://bugs.freedesktop.org/show_bug.cgi?id=106342#c39">Comment # 39</a>
on <a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - [drm] HANG: ecode 9:0:0x9cba0f27, in kscreenlocker_g [103585], reason: Hang on rcs0, action: reset"
href="https://bugs.freedesktop.org/show_bug.cgi?id=106342">bug 106342</a>
from <span class="vcard"><a class="email" href="mailto:lionel.g.landwerlin@linux.intel.com" title="Lionel Landwerlin <lionel.g.landwerlin@linux.intel.com>"> <span class="fn">Lionel Landwerlin</span></a>
</span></b>
<pre>(In reply to Thiago Macieira from <a href="show_bug.cgi?id=106342#c38">comment #38</a>)
<span class="quote">> (In reply to Lakshmi from <a href="show_bug.cgi?id=106342#c37">comment #37</a>)
> > I assume this is a mesa bug, so changing the product changing the product to
> > Mesa.
>
> Considering it's a GPU hang, why do you assume it's a Mesa bug?</span >
The last 4 error states you added indicate that most of the units of the 3d
engine are not busy.
ACTHD does not seem to point to a location in the batch.
IPEHR is fairly weird too (last executed instruction):
0x9e79016f (WTH is this?)
0x710cdef8 (Still unknown...)
0x70004000 (MEDIA_VFE_STATE, used for compute, but not present in the batch)
Also INSTDONE is bonkers :
INSTDONE: 0xffdffffe
PRB0 Ring Enable: false
CS Done: false
INSTDONE: 0xffd7fffe
PRB0 Ring Enable: false
GAM Done: false
CS Done: false
Usually Ring Enable is true.
Does that look more like something that happens with display hangs?</pre>
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