Comment 3 for bug 879858

The same problem affects me. In fact this seems to be an error in kernel itself. And it can be triggered just by running any efibootmgr command. More details are here:

https://bbs.archlinux.org/viewtopic.php?id=129331

and

https://lkml.org/lkml/2012/1/1/2

I can provide any additional information if needed.