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    SubjectRe: Strange lockup of the timer with 2.4.0-test10 SMP (and older)
    >  I guess not -- the timer interrupt and the NMI use different I/O APIC
    > inputs. If both are stuck, it's probably 8254 that gets reprogrammed. I
    > suppose XFree86 might be at fault -- does it happen with the NMI watchdog
    > disabled, either?
    Yes. I just enabled the nmi watchdog to try to debug the problem. It did
    not change anything.

    About the 8254, the kernel log contains :

    Nov 20 17:15:15 pc8-118 kernel: MP-BIOS bug: 8254 timer
    not connected to IO-AP
    IC
    Nov 20 17:15:15 pc8-118 kernel: ...trying to set up timer (IRQ0)
    through the 8259A ...
    Nov 20 17:15:15 pc8-118 kernel: ..... (found pin 0) ...works.

    But this does not seem to annoy the kernel.

    Is there anyway to restore the 8254 to a valid state without rebooting ?


    --
    | Benjamin Monate | mailto:Benjamin.Monate@lri.fr |
    | LRI - Bât. 490
    | Université de Paris-Sud
    | F-91405 ORSAY Cedex

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