Miles, do you observe any functional issues, or are the error messages themselves the problem? Did you see this in 2.6.30? Does it go away if you revert the latest ACPICA update? htp://ftp.kernel.org/pub/linux/kernel/people/lenb/acpi/patches/2.6.30/acpi-acpica-20090521-2.6.30-rc7.diff.gz thanks, Len Brown, Intel Open Source Technology Center -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html