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    SubjectRe: hangcheck watchdog triggers if clock=pit. Missing code in monotonic_clock_pit()?
    On Sat, 2004-04-10 at 06:35, Denis Vlasenko wrote:
    > linux-2.6.5/arch/i386/kernel/time.c:
    > ====================================
    > /* monotonic_clock(): returns # of nanoseconds passed since time_init()
    > * Note: This function is required to return accurate
    > * time even in the absence of multiple timer ticks.
    > */
    > linux-2.6.5/arch/i386/kernel/timers/timer_pit.c:
    > ================================================
    > static unsigned long long monotonic_clock_pit(void)
    > {
    > return 0;
    > }

    Part of the problem is that the PIT timesource cannot account for lost
    ticks, thus we cannot strictly conform to the

    So either we just return (jiffies_64 * TICK_NSEC), and just have an
    exception to the rule, or the hangcheck watchdog needs to know what to
    do when monotonic_clock always returns zero.

    Joel: Do you have a preference?


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