Re: alternate system clock has died

From: Valentin Nechayev (netch_at_iv.nn.kiev.ua)
Date: 06/30/03

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    Date: Mon, 30 Jun 2003 23:50:57 +0300
To: Stijn Hoop <stijn@win.tue.nl>

     Fri, Jun 27, 2003 at 13:52:08, stijn (Stijn Hoop) wrote about "alternate system clock has died":

    SH> I'm getting the message in the subject when I run systat -vm on a lightly
    SH> loaded server. Top shows interesting CPU usage %:
    SH> CPU states: 0.0% user, 0.0% nice, 0.0% system, 0.0% interrupt, 0.0% idle

    See LINT:

    # Notes on APM
    # The flags takes the following meaning for apm0:
    # 0x0020 Statclock is broken.
    # If apm is omitted, some systems require sysctl -w kern.timecounter.method=1
    # for correct timekeeping.

    This is possibly the first thing should be done seeing dead statclock.
    It was actual for SMP motherboards based on 440BX and similar chipsets.

    > Could this have to do
    > with the battery-backed CMOS clock?

    Yes, statclock is RTC interrupts, but even if battery is dead, interrupts
    should work.

    -netch-
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