Hello all, this may be quite useful given frequent ACPI idle invocation... i386 run-tested on 2.6.17-rc4-mm3. Signed-off-by: Andreas Mohr <andi@xxxxxxxx> diff -urN linux-2.6.17-rc4-mm3.orig/drivers/acpi/processor_core.c linux-2.6.17-rc4-mm3.my/drivers/acpi/processor_core.c --- linux-2.6.17-rc4-mm3.orig/drivers/acpi/processor_core.c 2006-05-23 19:14:14.000000000 +0200 +++ linux-2.6.17-rc4-mm3/drivers/acpi/processor_core.c 2006-05-22 15:47:05.000000000 +0200 @@ -110,7 +110,7 @@ }; struct acpi_processor *processors[NR_CPUS]; -struct acpi_processor_errata errata; +struct acpi_processor_errata errata __read_mostly; /* -------------------------------------------------------------------------- Errata Handling - 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