Comment 21 for bug 84876

Allright, I have this very same problem on three different machines.
Lots of people have it.
It's not a showstopper, but it's a scary thing to have in a stable release for this many months.
Let's raise the priority, let's look into this.

Looks like a synchronization problem to me. Did anyone have this on a single core machine?

Also found a dupe:
https://bugs.launchpad.net/ubuntu/+bug/155164