lkml.org 
[lkml]   [2003]   [Sep]   [4]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
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.


-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:48    [W:1.874 / U:0.052 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site