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<body><span class="vcard"><a class="email" href="mailto:imre.deak@gmail.com" title="Imre Deak <imre.deak@gmail.com>"> <span class="fn">Imre Deak</span></a>
</span> changed
<a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [ILK]igt/kms_render/gpu-blit randomly causes system hang"
href="https://bugs.freedesktop.org/show_bug.cgi?id=67243">bug 67243</a>
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<td style="text-align:right;">Attachment #85190 is obsolete</td>
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<td>1
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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [ILK]igt/kms_render/gpu-blit randomly causes system hang"
href="https://bugs.freedesktop.org/show_bug.cgi?id=67243#c21">Comment # 21</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [ILK]igt/kms_render/gpu-blit randomly causes system hang"
href="https://bugs.freedesktop.org/show_bug.cgi?id=67243">bug 67243</a>
from <span class="vcard"><a class="email" href="mailto:imre.deak@gmail.com" title="Imre Deak <imre.deak@gmail.com>"> <span class="fn">Imre Deak</span></a>
</span></b>
<pre>Created <span class=""><a href="attachment.cgi?id=85246" name="attach_85246" title="debug ironlake_crtc_disable-2">attachment 85246</a> <a href="attachment.cgi?id=85246&action=edit" title="debug ironlake_crtc_disable-2">[details]</a></span>
debug ironlake_crtc_disable-2
(In reply to <a href="show_bug.cgi?id=67243#c19">comment #19</a>)
<span class="quote">> Created <span class=""><a href="attachment.cgi?id=85229" name="attach_85229" title="dmesg with patch debug ironlake_crtc_disable">attachment 85229</a> <a href="attachment.cgi?id=85229&action=edit" title="dmesg with patch debug ironlake_crtc_disable">[details]</a></span>
> dmesg with patch debug ironlake_crtc_disable</span >
Seems to hang in intel_disable_plane. According to Ville, disabling clocks
while having planes on might cause this. I checked and our disable sequence for
ilk is not according to spec, we should disable planes before disabling the
port.
Could you try again with all of the following kernel/igt patches applied:
- fix modeset disable sequence
- debug ironlake_crtc_disable-2
- disable steps one-by-one (all of 1-5)
and send a full dmesg with drm.debug=0xf?</pre>
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