Same as comment #20. Using a K7S5A MB with ACPI enabled. Kernel fais to detect that : Mar 21 10:03:08 bouzin kernel: [ 0.000000] Local APIC disabled by BIOS -- you can enable it with "lapic" Mar 21 10:03:08 bouzin kernel: [ 0.000000] APIC: disable apic facility
Adding lapic to the default boot options makes the warning disappear. ---- WORKAROUND ---- On ubuntu, you need to modify /boot/grub/menu.lst (needs root privileges) : it's the kopt line (or the defoptions line, if you're unsure what you're doing) # kopt=root=UUID=a251989a-0f6a-4ac2-b496-3420bb7c23ba ro (the line will differ on your system) make it (add lapic at the end) # kopt=root=UUID=a251989a-0f6a-4ac2-b496-3420bb7c23ba ro lapic Then run update-grub again (needs root privileges). If asked about a conflict between modified local version and developper version, chose developper version to allow grub-update to modify the entries. ------------------------------ I guess it's the kernel's fault. It should detect ACPI properly in the first place. -- WARNING: at /build/buildd/linux-2.6.31/arch/x86/kernel/apic/apic.c:247 native_apic_write_dummy+0x33/0x40() https://bugs.launchpad.net/bugs/447852 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
