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

bugzilla-daemon at bugzilla.kernel.org bugzilla-daemon at bugzilla.kernel.org
Sun Jan 16 11:46:00 PST 2011


--- Comment #15 from Bc. Slavomir Danas <slavomir.danas at gmail.com>  2011-01-16 19:45:49 ---
I've had this drm_kms_helper.poll=N kernel workaround in my grub since I've
discovered it in 18802 bug (around 2.6.36-r2 i think) because I've suffered by
the udev drm polling storm in 2.6.34, kslowd in 2.6.35 and kworker in 2.6.36.
Since I've applied it everything was working smooth. I read the announcement
about bug 18802 being duplicate of this bug and it being resolved as of
2.6.36-rc5 so I have removed this kernel setting and rebooted with my 2.6.37
kernel hoping that everything should be fine. But in few minutes the same
symptoms appeared so I reverted back to drm_kms_helper.poll=N kernel option and
everything seems all right again (with the workaround). I can provide more info
on my HW or SW by request.

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