Bug#688350: same problem in linux-image-3.2.0-4-686-pae

[Mark Hedges <scriptdolphin@gmail.com>]

I have a Lenovo X61.  I got the same problem.  One gpe had hundreds of interrupts (#12 in my case).  

However, disabling gpe12 did not help, CPU spikes continued.  

`ifconfig eth0 down` did stop the kworker CPU spikes.  I disabled allow-hotplug for eth0 in /etc/network/interfaces.  Now it is fine, with gpe12 enabled again.

I'm glad I got a wireless router recently.  :-)

HTH. -Mark