Re: mysterious crashes

[Jeff Macfarland <jmacfarland nexatech com>]

If you're nic supports it, set up netdump for, at the very least, 
syslogging any panics or last minute messages that just dont make it to 
the disk.

John Summerfield wrote:
> Shawn Gendle wrote:
> > Bad memory can do this. If you think it's a possibility, try running 
> > memtest86 on in. Helped me out several times before.
> >  -Shawn
>
> If you have an exact (hardware) replica, swapping the disks over is a 
> worthwhile diagnostic measure too.
>
> I too am inclined to think it's hardware, but software (particilarly 
> third-party drivers) can also do it.
>
> btw you didn't mention whether you tried to ping or otherwise approach 
> the system over the LAN. Several times I've had a system apparently 
> frozen (in X). but been able to connect over the network.
>
>
> > Rigoberto Corujo wrote:
> > > We had a similar problem.  It turned out to be a bug
> > > in the bnx2 network driver for which there as a patch.
> > >  I believe it had to do with a buffer filling up, if
> > > I'm not mistaken.
> > >
> > > Rigoberto
> > >
> > >
> > > --- Justin Zygmont <justin cityfone net> wrote:
> > >
> > > > I guess it's just a hang.  The lights look ok, but
> > > > its frozen solid.
> > > > Each time I have a top session running, and
> > > > everything looks fine, no high loads or wait states, almost no swap 
> > > > being
> > > > used.
> > > >
> > > >
> > > >
> > > > Howard, Chris wrote:
> > > > > Crashes or hangs?
> > > > >
> > > > > Is the disk access light flashing?
> > > > >
> > > > > Does the mouse pointer still move?
> > > > >
> > > > >
> > > > >
> > > > >
> > > > > ----- Original Message -----
> > > > > From: nahant-list-bounces redhat com
> > > > <nahant-list-bounces redhat com>
> > > > > To: Red Hat Enterprise Linux 4 (Nahant) Discussion
> > > > List <nahant-list redhat com>
> > > > > Sent: Thu Sep 13 17:35:27 2007
> > > > > Subject: mysterious crashes
> > > > >
> > > > > I have a machine with rhel 4.4 that mysteriously
> > > > crashes once in a while
> > > > > at random.  Does anyone have any recommendations
> > > > what to do in order to
> > > > > investigate the problem?  The logs show nothing
> > > > unusual, and there's
> > > > > nothing else I can find that points to a problem.
> > > > --
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> > >
> > >
> > >
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