Hi, I've been having the same problem on a Lenovo ideapad S10-3 in bug #623149 (should probably be marked as a duplicate in fact but I don't like to mess around with other peoples bug trackers). As suggested by Frederic, I tried 2.6.32-31 with x86-hotplug-use-mwait-to-offline-a-processor-fix-the-legacy-case.patch reverted, and I haven't had a hibernation failure since. robert.