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<body><span class="vcard"><a class="email" href="mailto:manuelkrause@netscape.net" title="Manuel Krause <manuelkrause@netscape.net>"> <span class="fn">Manuel Krause</span></a>
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<a class="bz_bug_link
bz_status_NEW "
title="NEW - GPU HANG: ecode 4:1:0x01000000, reason: Ring hung, action: reset"
href="https://bugs.freedesktop.org/show_bug.cgi?id=91976">bug 91976</a>
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<td>manuelkrause@netscape.net
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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - GPU HANG: ecode 4:1:0x01000000, reason: Ring hung, action: reset"
href="https://bugs.freedesktop.org/show_bug.cgi?id=91976#c1">Comment # 1</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - GPU HANG: ecode 4:1:0x01000000, reason: Ring hung, action: reset"
href="https://bugs.freedesktop.org/show_bug.cgi?id=91976">bug 91976</a>
from <span class="vcard"><a class="email" href="mailto:manuelkrause@netscape.net" title="Manuel Krause <manuelkrause@netscape.net>"> <span class="fn">Manuel Krause</span></a>
</span></b>
<pre>Created <span class=""><a href="attachment.cgi?id=120181" name="attach_120181" title="dmesg log of a similar GPU hang">attachment 120181</a> <a href="attachment.cgi?id=120181&action=edit" title="dmesg log of a similar GPU hang">[details]</a></span>
dmesg log of a similar GPU hang
It's taken long time for me to find this BUG. For months I've been searching to
find reasons and solutions for my resumes from hibernation (suspend-to-disk)
sometimes fail and sometimes not.
Currently I'm using kernel 4.3.0 (vanilla from openSUSE) + the actual vrq patch
from Alfred Chen, the TuxOnIce patch and the BFQ disk scheduler patches v7r8.
As I already annoyed others with the annoying unreliability to always resume
properly (sometimes 25+ attempts needed to get the written image back working,
but sometimes the first one comes up well, in one row of hibernations without
reboot), I decided to compile the i915 into the kernel, yesterday. One problem
with the TuxOnIce resume attempts failing: I never got any failure messages.
Either it worked or the machine locked up at "Doing atomic copy/restore." --
where there seems to occur a mode switch in the working case (module version).
With the compiled-in i915 I do at least get some messages about what's maybe
going on. And... I'm a bit lucky to have done this, as the needed GPU resets
seem to make resuming more relyable on here.
This is a HP Compaq 6730b laptop running openSUSE 13.1, but with actualized
drivers. For Xorg, Mesa and GFX related .rpms I use pontostroy's repository.
Here I attach the dmesg log of a series of resumes from hibernation.
In the next attachment I'd add the /sys/class/drm/card0/error crash dump.</pre>
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