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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - [KBL/BXT-P] gem_exec_suspend tests fail"
href="https://bugs.freedesktop.org/show_bug.cgi?id=94597#c26">Comment # 26</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - [KBL/BXT-P] gem_exec_suspend tests fail"
href="https://bugs.freedesktop.org/show_bug.cgi?id=94597">bug 94597</a>
from <span class="vcard"><a class="email" href="mailto:marius.c.vlad@intel.com" title="Marius Vlad <marius.c.vlad@intel.com>"> <span class="fn">Marius Vlad</span></a>
</span></b>
<pre>(In reply to Marius Vlad from <a href="show_bug.cgi?id=94597#c25">comment #25</a>)
<span class="quote">> (In reply to Marius Vlad from <a href="show_bug.cgi?id=94597#c24">comment #24</a>)
> > Created <span class=""><a href="attachment.cgi?id=124476" name="attach_124476" title="err_decode, blt, bsd and vebox hang.">attachment 124476</a> <a href="attachment.cgi?id=124476&action=edit" title="err_decode, blt, bsd and vebox hang.">[details]</a></span>
> > err_decode, blt, bsd and vebox hang.
> >
> > Output from intel_error_decode.
>
> [ 642.918976] [drm] stuck on blitter ring
> [ 642.918987] [drm] stuck on bsd ring
> [ 642.918993] [drm] stuck on video enhancement ring
> [ 642.930715] [drm] GPU HANG: ecode 8:1:0x5ccddf92, in gem_exec_suspen
> [6045], reason: Engine(s) hung, action: reset
> [ 642.930921] [drm] GPU hangs can indicate a bug anywhere in the entire gfx
> stack, including userspace.
> [ 642.930925] [drm] Please file a _new_ bug report on bugs.freedesktop.org
> against DRI -> DRM/Intel
> [ 642.930929] [drm] drm/i915 developers can then reassign to the right
> component if it's not a kernel issue.
> [ 642.930932] [drm] The gpu crash dump is required to analyze gpu hangs, so
> please always attach it.
> [ 642.930935] [drm] GPU crash dump saved to /sys/class/drm/card0/error
> [ 642.938079] [drm:i915_set_reset_status [i915]] *ERROR* gpu hanging too
> fast, banning!</span >
So, S3 and S4 works fine (BSW-N3050) without issuing batch commands to the GPU.
The BXT seem to have some FIFO underrun before trying to issue a GPU reset.</pre>
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