kworker is using up a lot of CPU

[Chris Murphy]

On Jan 29, 2013, at 11:44 AM, Eberhard Schruefer <eschruefer at ca-musings.de> wrote:

> I'm seeing kworker using up around 80% CPU time constantly and the laptop is running hot.
> 
This is in cases when you expect the system to be idle? i.e. no disk access, no active processes running, or network activity? Or is there something going on, like a file copy, but you just don't expect kworker to be consuming 80%? If the latter, I have a similar case with two (U)EFI laptops; I haven't narrowed it down to network access or disk access. But if neither are occurring, then I do get idle and no kworker process CPU % is significant.

Chris Murphy