[aclug-L] Re: Help my Servers falling and won't stay up

[Clint Brubakken <cabrubak@xxxxxxx>]

Well I can't think it memory, I just looked and it has 1G off swap. But
I never got and signal 11's. 





On Wed, 2002-04-17 at 19:54, Jonathan Hall wrote:
> 
> FYI, if you have a 550Mhz, chip, it's a K6-2.  The fastest K6-3, IIRC, was
> 500Mhz (which was much faster than  K6-2/550, incidentally).  Not that this
> really matters :)
> 
> After the system freezes and you reboot, does anything at all show up in the
> logs?
> 
> It sounds to me like it might be CPU-related.  Perhaps a bad CPU or an
> overheating CPU.  If it was bad RAM, it would not likely freeze up
> completely, but give sig11's and what not.  And actually, come to think of
> it, even when I've had an overheating CPU, I usually get sig11s before the
> thing completely locks up.
> 
> Can you upgrade to a later kernel?  Perhaps there's some funny driver issue
> going on?
> 
> -- Jonathan
> 
> 
> On Wed, Apr 17, 2002 at 04:23:57PM -0500, Clint Brubakken wrote:
> > 
> >  2.4.9-21.0RS , I assume RS is rack space
> > I don't get this problem on my workstation which is a redhat 7.2 w 
> > 2.4.7-10 and a K6 2 or 3  550 vs an athlon 700 for our server.
> > 
> > I'm wondering if it is a heat issue? It only seems to  happen under
> > constant mild stress.
> > 
> > On Wed, 2002-04-17 at 14:27, Denis Medvedev wrote:
> > > 
> > > Please tell me what kernel version do you use!
> > > Kernel versions prior to 2.4.17 were highly unstable
> > > on
> > > heavy memory loads. Even 2.4.17 is not very stable.
> > > The results can be that you described.
> > > --- Clint Brubakken <cabrubak@xxxxxxx> wrote:
> > > > 
> > > > We are running a redhat 7.2 server, rackspace
> > > > installed (so I don't know
> > > > the whole configuration), and its locking up when we
> > > > do to much with it.
> > > > 
> > > > The latest incidences happened when tgzing the /home
> > > > directory to make a
> > > > back up.
> > > > 
> > > > The first time, I was creating the tar in my home
> > > > directory which was
> > > > being tarred, and so i created a loop.
> > > > 
> > > > The second time I was creating it in the /tmp and it
> > > > locked up in the
> > > > middle. 
> > > > 
> > > > I was doing a top at the time, and never saw the
> > > > load get above 1.17, 
> > > > and the memory taken for gzip was at 64%, which is a
> > > > lot but not enough
> > > > to lock up the server I'd think.
> > > > 
> > > > Both times it locked up so bad, they we couldn't
> > > > ssh, or run any
> > > > services off it and it had to be rebooted by hand. 
> > > > 
> > > > I'm going to be looking into pam and limits, but it
> > > > didn't seem like it
> > > > was a problem like that. 
> > > > 
> > > > Any ideas or suggestions?
> > > > 
> > > > Clint Brubakken
> > > > President in Exile
> > > > 
> > > > 
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> > > > 
> > > 
> > > 
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> on his final request before the firing squad
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