On Wednesday 12 September 2007 07:20, Lexington Luthor wrote: > Hi, > > Running vanilla 2.6.22.6 on a Dell Inspiron 1501 (w/ latest BIOS > update), the kernel says: > ... > Sep 12 11:49:27 [kernel] ACPI: System BIOS is requesting _OSI(Linux) > Sep 12 11:49:27 [kernel] ACPI: Please test with "acpi_osi=!Linux" > Sep 12 11:49:27 [kernel] Please send dmidecode to linux-acpi@xxxxxxxxxxxxxxx > Sep 12 11:49:27 [kernel] ACPI: Interpreter enabled > Sep 12 11:49:27 [kernel] ACPI: Using IOAPIC for interrupt routing > ... > > The machine itself is stable under load (aside from wifi network drops, > but thats a known bcm43xx tx power problem), aside from an occasional > message in dmesg saying stuff like: > Sep 12 07:21:45 [kernel] APIC error on CPU0: 00(40) > Sep 12 07:21:48 [kernel] APIC error on CPU1: 00(40) > Sep 12 07:28:27 [kernel] APIC error on CPU0: 40(40) > Sep 12 07:28:46 [kernel] APIC error on CPU1: 40(40) I think you can ignore them, just like you can ignore strange engine noises from inexpensive autos:-) System Information Manufacturer: Dell Inc. Product Name: Inspiron 1501 Version: Not Specified Serial Number: HR9ZX2J UUID: 44454C4C-5200-1039-805A-C8C04F58324A Wake-up Type: Power Switch SKU Number: Not Specified Family: Not Specified Handle 0x0003, DMI type 2, 8 bytes Base Board Information Manufacturer: Dell Inc. Product Name: 0UW744 Thanks for the dmidecode output. Do you notice any functional difference when booting with "acpi_osi=Linux" (default for 2.6.22 and earlier) vs. "acpi_osi=!Linux" (default for 2.6.23 and later) Also, please send me the output from acpidump. thanks, -Len ps If you don't have acpidump, you can get it from pmtools here: http://www.lesswatts.org/projects/acpi/utilities.php - 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