I noticed that Linux does not define anything for this macro (in aclinux.h) #define ACPI_FLUSH_CPU_CACHE() A more typical implementation is: #define ACPI_FLUSH_CPU_CACHE() Wbinvd() This macro is used just before sleeping. Specifically, just before writing SLP_TYP and SLP_EN in AcpiEnterSleepState, when the cache should be flushed. It seems to me that this is a bug. Bob -- 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