> Hello, I have problem with Namespace lookup failure on E5420. Thus acpi not > functional (cpufrequ via p-states, etc...). > > Does anyone know about some patch or some hint? from the dmesg: Linux version 2.6.27-gentoo-r2_cargo ... ACPI: SSDT CFE5F800, 00D8 (r1 HP CPU0CST 1 INTL 20061109) Parsing all Control Methods: Table [SSDT](id 00C6) - 1 Objects with 0 Devices 1 Methods 0 Regions ACPI Error (psargs-0358): [CS03] Namespace lookup failure, AE_NOT_FOUND ACPI Error (psparse-0530): Method parse/execution failed [\_PR_.CPU0._CST] (Node ffff88012f860a10), AE_NOT_FOUND processor ACPI0007:00: registered as cooling_device0 ACPI: SSDT CFE5F900, 00D8 (r1 HP CPU1CST 1 INTL 20061109) Parsing all Control Methods: Table [SSDT](id 00CB) - 1 Objects with 0 Devices 1 Methods 0 Regions ACPI Error (psargs-0358): [CS03] Namespace lookup failure, AE_NOT_FOUND ACPI Error (psparse-0530): Method parse/execution failed [\_PR_.CPU1._CST] (Node ffff88012f860a30), AE_NOT_FOUND processor ACPI0007:01: registered as cooling_device1 ACPI: SSDT CFE5FA00, 00D8 (r1 HP CPU2CST 1 INTL 20061109) Parsing all Control Methods: Table [SSDT](id 00D0) - 1 Objects with 0 Devices 1 Methods 0 Regions ACPI Error (psargs-0358): [CS03] Namespace lookup failure, AE_NOT_FOUND ACPI Error (psparse-0530): Method parse/execution failed [\_PR_.CPU2._CST] (Node ffff88012f860ad0), AE_NOT_FOUND processor ACPI0007:02: registered as cooling_device2 ACPI: SSDT CFE5FB00, 00D8 (r1 HP CPU3CST 1 INTL 20061109) Parsing all Control Methods: Table [SSDT](id 00D5) - 1 Objects with 0 Devices 1 Methods 0 Regions ACPI Error (psargs-0358): [CS03] Namespace lookup failure, AE_NOT_FOUND ACPI Error (psparse-0530): Method parse/execution failed [\_PR_.CPU3._CST] (Node ffff88012f8609f0), AE_NOT_FOUND Most of ACPI is actually functioning properly on this machine, having configured your interrupts etc. It looks like this box is trying to present some C-states via _CST, and that is failing. I don't see any messages related to P-states -- is acpi_cpufreq included in your .config? Please start by confirming that 2.6.28 still has this issue. If it does, then please open a bug report here: http://bugzilla.kernel.org/enter_bug.cgi?product=ACPI and attach the dmesg (uncompressed is fine) along with the output from acpidump > acpidump.out acpidump -a 0xCFE5F800 -l 0x00D8 > ssdt.out 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