CPU usage at 97-98% with not alot running

[J]

On Thu, Mar 18, 2010 at 13:16, Pete Smout <peter.smout at o2.co.uk> wrote:
> this started at appropriately the same time as the kernel upgrade to
> 2.6.31-20 generic maybe just a coincidence i dont know!

So obviously, the first thing to do is boot an older kernel.

the updates don't remove older kernels, so you should have a boot
option for -20 and -19 and older kernels at boot time.

So I'd try the last known working kernel first, then go from there.