why the processes kworker always hold more than 90% cpu

[Pete Smout]

On 20/05/12 17:10, Richard Liu wrote:
> Hi All,
>    I installed ubuntu server 12.04 32bit version in my eeebox, and I
> recently found that processes kworker (like kworker/0:3, kworker/0:0)
> always hold more than 90% cpu. Any other what is the reason for this,
> and who can help to fix this issue? Thanks
Hi,

I had something similar (not on server or with kworker) but turned out 
to be first warning of HDD failure, random background processes started 
using 80-90% CPU, Hope this is not the case but just a heads-up incase.

Regards

Pete