On Saturday, January 25, 2014 05:32:19 PM Jörg Otte wrote: > 2014-01-25 Rafael J. Wysocki <rjw@xxxxxxxxxxxxx>: > > On Saturday, January 25, 2014 11:03:09 AM Jörg Otte wrote: > >> Kernel 3.13.0-06058-g2d08cd0 displays following errors on the console: > >> > >> ACPI: \_PR_.CPU4: failed to get CPU APIC ID. > >> ACPI: \_PR_.CPU5: failed to get CPU APIC ID. > >> ACPI: \_PR_.CPU6: failed to get CPU APIC ID. > >> ACPI: \_PR_.CPU7: failed to get CPU APIC ID. > >> > >> I don't have CPUs 4..7! Error messages regarding not existing > >> CPUs should not be displayed. > >> kernel 3.13.0-05617-g3aacd62 and before did'nt show this messages. > >> > >> This is a regression. I never saw this messages before. > > > > Does your system show any other suspicious symptoms or are you worried about > > those messages only? > > > > Rafael > > > > what's looking badly is this: > > ACPI Exception: AE_NOT_FOUND, While evaluating Sleep State [\_S1_] > (20131218/hwxface-580) > ACPI Exception: AE_NOT_FOUND, While evaluating Sleep State [\_S2_] > (20131218/hwxface-580) That means your BIOS doesn't support system sleep states S1 and S2, but we should be able to suppress those messages I think. > and this: > > acpi PNP0A08:00: _OSC: OS supports [ASPM ClockPM Segments MSI] > \_SB_.PCI0:_OSC invalid UUID > _OSC request data:1 1e 0 > acpi PNP0A08:00: _OSC failed (AE_ERROR); disabling ASPM That means the BIOS doesn't want to grant the kernel control of extended PCIe features on your system. > but these messages are not new. They indicate things that are not supported by the BIOS, but I agree that the messages are a bit cryptic. Thanks! -- I speak only for myself. Rafael J. Wysocki, 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