Attached (and below), please find a high-priority fix for ACPICA version 20130328 and later. Sorry for any inconvenience, Bob Fix for _INI regression. This change fixes a problem introduced in 20130328 where _INI methods are no longer executed properly because of a memory block that is not initialized properly. ACPICA BZ 1016. Tomasz Nowicki <tomasz.nowicki(a)linaro.org&gt;. diff --git a/source/components/namespace/nsinit.c b/source/components/namespace/nsinit.c index c1544cd..8619d68 100644 --- a/source/components/namespace/nsinit.c +++ b/source/components/namespace/nsinit.c @@ -690,6 +690,7 @@ AcpiNsInitOneDevice ( ACPI_DEBUG_EXEC (AcpiUtDisplayInitPathname ( ACPI_TYPE_METHOD, DeviceNode, METHOD_NAME__INI)); + ACPI_MEMSET (Info, 0, sizeof (ACPI_EVALUATE_INFO)); Info->PrefixNode = DeviceNode; Info->RelativePathname = METHOD_NAME__INI; Info->Parameters = NULL;