Ok I verified that: * This issue is yet valid for current 2.6.8 with acpi=on * It's valid for 2.4 series up to 2.4.27 with acpi=on * Patch proposed in 2.6.8 does not solve the issue, so it can be removed. The only workaround in all cases is the 'nolapic' boot param. -- Francesco P. Lovergine