Hi, I just got the following in dmesg with linux-3.2.1: [23379.612251] usb 2-1.2: new high-speed USB device number 6 using ehci_hcd [ 0.006666] Marking TSC unstable due to KVM discovered backwards TSC [23421.511167] Switching to clocksource hpet The mainboard is an Asus P8H67-V, BIOS 0806 10/26/2011 with Core i5-2400S. The kvm instance was running for a day already, and there was an overnight suspend-to-disk cycle in between, but the above happened ~1 hour after resume. (I don't think the usb message has anything to do with it, it's just the last message before the TSC message.) Hm, checking /var/log/kern.* it seems this also happened with linux-3.1.* without me noticing. Should I be worried? I thought Core-i5 processors have a stable TSC? Johannes -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html