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<body><span class="vcard"><a class="email" href="mailto:mika.kuoppala@intel.com" title="Mika Kuoppala <mika.kuoppala@intel.com>"> <span class="fn">Mika Kuoppala</span></a>
</span> changed
<a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO --- - [snb] GTT mapping fails after GPU hang"
href="https://bugs.freedesktop.org/show_bug.cgi?id=63921">bug 63921</a>
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<th>What</th>
<th>Removed</th>
<th>Added</th>
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<td style="text-align:right;">Status</td>
<td>NEW
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<td>NEEDINFO
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<b><a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO --- - [snb] GTT mapping fails after GPU hang"
href="https://bugs.freedesktop.org/show_bug.cgi?id=63921#c53">Comment # 53</a>
on <a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO --- - [snb] GTT mapping fails after GPU hang"
href="https://bugs.freedesktop.org/show_bug.cgi?id=63921">bug 63921</a>
from <span class="vcard"><a class="email" href="mailto:mika.kuoppala@intel.com" title="Mika Kuoppala <mika.kuoppala@intel.com>"> <span class="fn">Mika Kuoppala</span></a>
</span></b>
<pre>(In reply to <a href="show_bug.cgi?id=63921#c52">comment #52</a>)
<span class="quote">> (In reply to <a href="show_bug.cgi?id=63921#c51">comment #51</a>)
> > (In reply to <a href="show_bug.cgi?id=63921#c49">comment #49</a>)
> > > (In reply to <a href="show_bug.cgi?id=63921#c48">comment #48</a>)
> > > > Created <span class="bz_obsolete"><a href="attachment.cgi?id=79420" name="attach_79420" title="Patch to get error state out on low/fragmented memory situations">attachment 79420</a> <a href="attachment.cgi?id=79420&action=edit" title="Patch to get error state out on low/fragmented memory situations">[details]</a></span> <a href='page.cgi?id=splinter.html&bug=63921&attachment=79420'>[review]</a> [review] [review] [review] [review]
> > > > Patch to get error state out on low/fragmented memory situations
> > >
> > > Patch doesn't apply cleanly to 3.9.2 (error at the end of message). Do you
> > > prefer if I try to backport or start using another kernel?
> >
> > I have attached a proper patch to get error state out even if
> > memory is fragmented, backported to 3.9.2.
> >
> > Patch is also included in:
> > <a href="http://cgit.freedesktop.org/~danvet/drm-intel/log/?h=drm-intel-next-queued">http://cgit.freedesktop.org/~danvet/drm-intel/log/?h=drm-intel-next-queued</a>
> >
> > Nicolas, could you please try the patch so that we could get
> > an error state for this bug. Thanks.
>
> Mika, I had already more or less backported the patch to 3.9.3 (see the
> other bug report: <a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [snb] [h.264] [vaapi-mplayer] GPU hangs with both UXA and SNA after concurrent playback + GTT mapping fails after GPU hang"
href="show_bug.cgi?id=63946">https://bugs.freedesktop.org/show_bug.cgi?id=63946</a>). Now
> I'm having difficulties getting it to crash without locking hard. Often it
> doesn't crash but lowers its output frequency as I explain in that bug
> report (which is for the same bug). I'm trying out on a lot of units todays
> so hopefully I strike gold! I'll keep you guys posted. Thanks for the
> correct backport.</span >
Nicolas, it is not a backport of the previous patch in this bug (it was vmalloc
hack). The newly attached patch avoids seq_file completely and should work in
very low memory and/or fragmented situations also.</pre>
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