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    SubjectRe: [2.6.4-rc2] bogus semicolon behind if()
    On Fri, 19 Mar 2004, Thomas Schlichter wrote:

    > Well, my timer interrupt goes through the IO-APIC but I do have a functional
    > TSC. Nevertheless my system requires timer_ack to be set... If it isn't, my
    > CPU does not utilize its C2 state...

    Hmm, I wonder if there's any relationship between the state of the local
    APIC and your observation. Can you please see if the following hack
    changes anything (this assumes you have your timer IRQ directly connected
    to an I/O APIC input)?

    + Maciej W. Rozycki, Technical University of Gdansk, Poland +
    + e-mail:, PGP key available +

    --- io_apic.c.macro 2004-03-19 20:13:44.000000000 +0000
    +++ io_apic.c 2004-03-19 20:15:23.000000000 +0000
    @@ -1613,7 +1613,7 @@ static inline void check_timer(void)
    timer_ack = 1;
    timer_ack = !cpu_has_tsc;
    - enable_8259A_irq(0);
    + disable_8259A_irq(0);

    pin1 = find_isa_irq_pin(0, mp_INT);
    pin2 = find_isa_irq_pin(0, mp_ExtINT);
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      Last update: 2005-03-22 14:01    [W:0.049 / U:8.120 seconds]
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