<html>
<head>
<base href="https://bugs.freedesktop.org/">
</head>
<body>
<p>
<div>
<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - [BDW] kms_flip / vblank-vs-suspend-interruptible is failing"
href="https://bugs.freedesktop.org/show_bug.cgi?id=98289#c10">Comment # 10</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - [BDW] kms_flip / vblank-vs-suspend-interruptible is failing"
href="https://bugs.freedesktop.org/show_bug.cgi?id=98289">bug 98289</a>
from <span class="vcard"><a class="email" href="mailto:tomeu@tomeuvizoso.net" title="Tomeu Vizoso <tomeu@tomeuvizoso.net>"> <span class="fn">Tomeu Vizoso</span></a>
</span></b>
<pre>(In reply to Carlos Santa from <a href="show_bug.cgi?id=98289#c6">comment #6</a>)
>
<span class="quote">> (kms_flip:1128) CRITICAL: Failed assertion: es->current_seq - es->last_seq
> <= 150
> (kms_flip:1128) CRITICAL: Last errno: 4, Interrupted system call
> (kms_flip:1128) CRITICAL: unexpected vblank seq 2022, should be < 164
> **** END ****
> Subtest vblank-vs-suspend-interruptible: FAIL (44.647s)</span >
Can you try running this?
sudo sh -c "echo `date '+%s' -d '+ 60 seconds'` >
/sys/class/rtc/rtc0/wakealarm"
And immediately after, check any of:
* You get several "hpet1: lost 7161 rtc interrupts" messages in the kernel log
* top shows that one core is busy dealing with interrupts ("hi" field)
* perf top shows that rtc_cmos_read takes about 70% of the total CPU time,
followed by hpet_rtc_interrupt.
This is what I'm seeing in one of the machines I have here and would be useful
to know if it's the same you are observing.</pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are the QA Contact for the bug.</li>
<li>You are on the CC list for the bug.</li>
</ul>
</body>
</html>