Ok, so I went and looked at tip and which branches could be the usual suspects. And whaddya know, tip/x86/apic was the first to pick and it contained the culprit: 6a38fa0e3c94 ("x86, irq, ACPI: Release IOAPIC pin when PCI device is disabled") It seems like my machine doesn't like releasing the IOAPIC pin. Or, maybe it is IOMMU-related and the IOMMU doesn't like this releasing of the pin *after* the device gets suspended and *before* the IOMMU. Strange. Oh well, a well deserved lunch now :) -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html