[Bug 16265] Why is kslowd accumulating so much CPU time?

bugzilla-daemon at bugzilla.kernel.org bugzilla-daemon at bugzilla.kernel.org
Tue Jan 18 10:18:44 PST 2011


--- Comment #17 from Bc. Slavomir Danas <slavomir.danas at gmail.com>  2011-01-18 18:18:36 ---
It doesn't seem to me as sane to consume this amount of CPU time to poll for
anything (see attached screenshot). I figured a way how to reproduce this, I've
enabled RandR polling in KDE, attached LCD TV via HDMI and played a video in
VLC. After few mouse clicks in the menu of VLC I've witnessed jerky mouse
movement and later my X has frozen completely. I've switched to console and
found out that when I unpluged HDMI the kworker process went quiet.
I was able to take one screenshot but as my X froze I saw 3 kworker processes
running, eating all CPU time rendering my system useless (no chance to take
screenshot at that moment).
I repeat I'm running latest gentoo-sources-2.6.37.

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