help me understand /var/log/messages

From: Emiliano Brunetti (emiliano.brunetti_at_fastwebnet.it)
Date: 11/04/04

  • Next message: Paul Howarth: "Re: miss addressed mail" 
    To: For users of Fedora Core releases <fedora-list@redhat.com>
Date: Thu, 04 Nov 2004 16:03:35 +0100

    Hi all,

    trying to figure out a usb problem i found out something strange in
    /var/log/messages (at least i think so).

    Sometimes the following entries are not present:

    sysctl: kernel.sysrq = 0
    sysctl: kernel.core_uses_pid = 1
    network: Setting network parameters: succeeded
    network: Bringing up loopback interface: succeeded

    When present, these are 'early' entries in messages. Loopback log
    missing is strange indeed: lo is configured anyway, but it doesn't log
    when usb is not working.

    It looks like they are connect to usb malfunction, but i don't really
    know how. Can somebody help me understand what they mean? Especially the
    sysctl ones...i can't understand why they are missing sometimes.

    Kernel is always the same with the same parameter:

    kernel: Linux version 2.6.8-1.521 (bhcompile@tweety.build.redhat.com)
    (gcc version 3.3.3 20040412 (Red Hat Linux 3.3.3-7)) #1 Mon Aug 16
    09:01:18 EDT 2004
    ...
    kernel: Kernel command line: ro root=LABEL=/ acpi=off

    I also noticed that ntpd behaves differently when those entries are
    present (and thus usb is working). In /var/log/messages ntpd gets
    initialized with a frequency of 24.170 PPM from /var/lib/ntp/drift when
    the sysctl entries are absent, and the frequency scales down to 16.787
    PPM when they are present. Don't know what this could possibly mean.

    Thanks a lot

    E. 

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