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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - [GM45] loss of driver acceleration after some time"
href="https://bugs.freedesktop.org/show_bug.cgi?id=103025#c4">Comment # 4</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - [GM45] loss of driver acceleration after some time"
href="https://bugs.freedesktop.org/show_bug.cgi?id=103025">bug 103025</a>
from <span class="vcard"><a class="email" href="mailto:chris@chris-wilson.co.uk" title="Chris Wilson <chris@chris-wilson.co.uk>"> <span class="fn">Chris Wilson</span></a>
</span></b>
<pre>(In reply to Adric Blake from <a href="show_bug.cgi?id=103025#c3">comment #3</a>)
<span class="quote">> uptime: over 5 days
> xorg-server 1.19.3-3
> xf86-video-intel 1:2.99.917+781+gc8990575-1
> mesa 17.2.1-3
> libdrm 2.4.83-1
> linux 4.13.4-1 (Arch Linux stock kernel -- vanilla, with no new drm-tip
> patches)
>
> No sign of the issue on the 4.13.4 kernel.
>
> There is no released 4.14 or 4.15 kernel right now, so I'm not quite sure
> what you meant by your last suggestion. I was using the latest drm-tip
> kernel at the time.</span >
That was me misreading (the "way back when I was testing drm-tip" stuck in my
head).
<span class="quote">> I will check to see if the issue emerges in the 4.14-rc3 kernel *without*
> the latest drm-tip changes to try and identify the responsible party further.</span >
Ta. That's the next one, it narrows it down to the previous cycle or this one.
Though bisection is viable at this point. I can guess it will be
commit d1b48c1e7184d9bc4ae6d7f9fe2eed9efed11ffc
Author: Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>>
Date: Wed Aug 16 09:52:08 2017 +0100
drm/i915: Replace execbuf vma ht with an idr
though quite unexpected. If you have the patient, compiling xf86-video-intel
with --enable-debug=full should result in the erroroneous submit being dumped.</pre>
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