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<body><span class="vcard"><a class="email" href="mailto:przanoni@gmail.com" title="Paulo Zanoni <przanoni@gmail.com>"> <span class="fn">Paulo Zanoni</span></a>
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<a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED --- - [HSW bisected]igt/module_reload causes [drm:hsw_unclaimed_reg_check] *ERROR* Unclaimed write to 44004 and system hang with headless, with power well disabled"
href="https://bugs.freedesktop.org/show_bug.cgi?id=67813">bug 67813</a>
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<td>przanoni@gmail.com
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<b><a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED --- - [HSW bisected]igt/module_reload causes [drm:hsw_unclaimed_reg_check] *ERROR* Unclaimed write to 44004 and system hang with headless, with power well disabled"
href="https://bugs.freedesktop.org/show_bug.cgi?id=67813#c10">Comment # 10</a>
on <a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED --- - [HSW bisected]igt/module_reload causes [drm:hsw_unclaimed_reg_check] *ERROR* Unclaimed write to 44004 and system hang with headless, with power well disabled"
href="https://bugs.freedesktop.org/show_bug.cgi?id=67813">bug 67813</a>
from <span class="vcard"><a class="email" href="mailto:przanoni@gmail.com" title="Paulo Zanoni <przanoni@gmail.com>"> <span class="fn">Paulo Zanoni</span></a>
</span></b>
<pre>(In reply to <a href="show_bug.cgi?id=67813#c9">comment #9</a>)
<span class="quote">> (In reply to <a href="show_bug.cgi?id=67813#c8">comment #8</a>)
> > Created <span class=""><a href="attachment.cgi?id=84069" name="attach_84069" title="Fix for the bug">attachment 84069</a> <a href="attachment.cgi?id=84069&action=edit" title="Fix for the bug">[details]</a></span> <a href='page.cgi?id=splinter.html&bug=67813&attachment=84069'>[review]</a> [review] [review]
> > Fix for the bug
> >
> > Hi
> >
> > Can you please verify this patch fixes the bug?
> >
> > Please notice that this patch only fixes the "unclaimed register" messages.
> > When running module_reload I still see many problems which are not fixed by
> > this patch:
> > - We get a gpu hang most of the time
> > - Backlight doesn't work
> > - Sometimes we get an oops
> > - There's a big lockdep warning every time.
> >
> > Thanks,
> > Paulo
>
> I test this patch. This issue still exists.</span >
Which issue specifically: the black screen or the "unclaimed register"
messages? Can you please post the new dmesg output?
Thanks,
Paulo</pre>
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