kworker wakeup calls take 100% of CPU every ~1sec in Precise
landronimirc at gmail.com
Thu Sep 6 05:38:28 UTC 2012
Using 12.04 with kernel 3.2.0 and latest updates on a Lenovo T61.
I have this nasty problem where a stray process, kworker or watchdog,
takes 100% of CPU every ~1sec. This causes UI freezes and essentially
renders Ubuntu unusable. Apparently this is a known issue related to
ACPI interrupt calls, but obviously it hasn't been fixed yet in the
Do others experience the same issue? How do you deal with it? Regards
PS A potential solution is suggested here , but I still have to test it.
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