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    SubjectRe: nmi errors?
    On Wed, 3 Sep 2003, Robert L. Harris wrote:

    >
    >
    > We ran "memtest" on the machine over the weekend and it completed 3
    > times without any problems. Know a better or different test?
    >
    >

    Write 0x80 out port 0x70, and hope nobody accesses the RTC. This
    will (should) disable the NMI line. Then see if the error messages
    go away. If they do, it's a real NMI and you really do have bad
    RAM somewhere. If they don't, your motherboard is getting glitched
    either by bad design or something plugged into a slot that doesn't
    have the correct timing specs.

    If everything works, in spite of the NMI, just comment out the
    kernel printk() and cross your fingers.

    > Thus spake Richard B. Johnson (root@chaos.analogic.com):
    >
    > > On Wed, 3 Sep 2003, Robert L. Harris wrote:
    > >
    > > >
    > > >
    > > > Can anyone tell me what this is?
    > > >
    > > > 16:00:09 mailserver kernel: Uhhuh. NMI received for unknown reason 31.
    > > > 16:00:09 mailserver kernel: Dazed and confused, but trying to continue
    > > > 16:00:09 mailserver kernel: Do you have a strange power saving mode enabled?
    > > > 16:00:34 mailserver kernel: Uhhuh. NMI received for unknown reason 21.
    > > > 16:00:34 mailserver kernel: Dazed and confused, but trying to continue
    > > >
    > > > A coworker put a script on a server which loads up quite afew arrays
    > > > with pre-set values and then compares the values against arrays. As soon as he
    > > > kicked off the script I got alot of these in my log files. Not much longer and the
    > > > machine crashed hard.
    > > >
    > >
    > > Possible bad RAM.
    > >
    > > Cheers,
    > > Dick Johnson
    > > Penguin : Linux version 2.4.22 on an i686 machine (794.73 BogoMips).
    > > Note 96.31% of all statistics are fiction.
    > >
    >
    > :wq!
    > ---------------------------------------------------------------------------
    > Robert L. Harris | GPG Key ID: E344DA3B
    > @ x-hkp://pgp.mit.edu
    > DISCLAIMER:
    > These are MY OPINIONS ALONE. I speak for no-one else.
    >
    > Life is not a destination, it's a journey.
    > Microsoft produces 15 car pileups on the highway.
    > Don't stop traffic to stand and gawk at the tragedy.
    >

    Cheers,
    Dick Johnson
    Penguin : Linux version 2.4.22 on an i686 machine (794.73 BogoMips).
    Note 96.31% of all statistics are fiction.


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