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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [HSW ULT] Loop to test S4, system will call trace and network disconnect"
href="https://bugs.freedesktop.org/show_bug.cgi?id=71238#c1">Comment # 1</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [HSW ULT] Loop to test S4, system will call trace and network disconnect"
href="https://bugs.freedesktop.org/show_bug.cgi?id=71238">bug 71238</a>
from <span class="vcard"><a class="email" href="mailto:ben@bwidawsk.net" title="Ben Widawsky <ben@bwidawsk.net>"> <span class="fn">Ben Widawsky</span></a>
</span></b>
<pre>(In reply to <a href="show_bug.cgi?id=71238#c0">comment #0</a>)
<span class="quote">> Created <span class=""><a href="attachment.cgi?id=88658" name="attach_88658" title="Image of Call trace">attachment 88658</a> <a href="attachment.cgi?id=88658&action=edit" title="Image of Call trace">[details]</a></span>
> Image of Call trace
>
> Environment:
> -------------------
> Kernel: (drm-intel-next-queued)9d1cb9147dbe45f6e94dc796518ecf67cb64b359
> Author: Paulo Zanoni <<a href="mailto:paulo.r.zanoni@intel.com">paulo.r.zanoni@intel.com</a>>
> Date: Fri Nov 1 13:32:08 2013 -0200
> drm/i915: avoid unclaimed registers when capturing the error state
>
> Description:
> --------------------
> When I test s4 in a loop , the machine will resume with call trace and the
> network disconnect, and sometimes it will also hang at the same time. It may
> happen at the 5 or 6 round of the loop ,or more like 24 round . I add the
> picture of the call trace in the attachment.
>
> Reproduce step:
> ----------------------
> 1.boot up machine
> 2.echo 0 > /sys/class/rtc/rtc0/wakealarm ;
> echo +10 > /sys/class/rtc/rtc0/wakealarm;
> 3.echo disk > /sys/power/state
> 4.loop running step 2 and 3</span >
Can you please try to reproduce with a 30 second delay. In strange cases, I've
seen 10s not be enough.</pre>
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