Re: alternate system clock has died

From: Stijn Hoop (stijn_at_win.tue.nl)
Date: 06/27/03

  • Next message: Eugene Grosbein: "Re: kern/48808: uhid(4)-related repeatable kernel panic" 
    Date: Fri, 27 Jun 2003 15:49:04 +0200
To: Robert Watson <rwatson@freebsd.org>

    On Fri, Jun 27, 2003 at 09:39:06AM -0400, Robert Watson wrote:
    > Many vendors have hardware diagnostic CD's available on their web sites
    > that test various aspects of the system, such as the accuracy of the
    > clock, the proper functioning of timers, etc. You might want to give one
    > a spin. Also, if you have any identical (or very similar hardware) that
    > does or does not exhibit the problem, that would be interesting also.

    Unfortunately I don't have identical hardware available, but I'll check out
    the mainboard vendor site for diagnostics.

    > Speaking of systat -vmstat, in the interrupts column, what is the
    > interrupt count for the rtc and clk lines?

    I don't know because I can't get systat -vmstat to display anything but
    the skeleton -- it waits about 5 seconds then prints this on a blank screen:

    The alternate system clock has died!
    Reverting to ``pigs'' display.

    (which it then promptly does).

    Hmm, wait. I'll try and comment out the check for etime < 0.5 in
    usr.bin/systat/vmstat.c. OK, this works, I now get this with my hacked
    version:

    643840 clk irq0
           rtc irq8

    Well that seems to be a pretty high rate, compared to a 4.7-PRE workstation
    that does 100 interrupts a second :)

    So what does this tell me?

    --Stijn 

    -- 
Q: Why is Batman better than Bill Gates?
A: Batman was able to beat the Penguin.

  • Next message: Eugene Grosbein: "Re: kern/48808: uhid(4)-related repeatable kernel panic"

    Relevant Pages

    • Re: Woohooo! Dell + Linux
      ... Except for Dell, most hardware vendors sell their product wholesale to ... These vendors need to convince retailers to stock their product ...
      (Debian-User)
    • Re: Fortran 2008 (was Re: Statement function host association)
      ... optimizing compiler for f77 code for their hardware. ... Other vendors were involved in this process too. ... compilers, but also there are numerous independent commercial ... 15 years or so of the new language features, array syntax still has ...
      (comp.lang.fortran)
    • Re: Free UNIX for non-commerical use.
      ... The essence, though, is that in the Unix world, vendors have had less incentive ... PeeCee type vendors tend to give away software, ... even heard rumor of HP doing so) give away hardware. ... Students that learn to use Open Source ...
      (comp.unix.solaris)
    • Re: Free UNIX for non-commerical use.
      ... The essence, though, is that in the Unix world, vendors have had less incentive ... PeeCee type vendors tend to give away software, ... even heard rumor of HP doing so) give away hardware. ... Students that learn to use Open Source ...
      (comp.sys.hp.hpux)
    • Re: Free UNIX for non-commerical use.
      ... The essence, though, is that in the Unix world, vendors have had less incentive ... PeeCee type vendors tend to give away software, ... even heard rumor of HP doing so) give away hardware. ... Students that learn to use Open Source ...
      (comp.unix.tru64)