[CentOS] System hangs silently

[Fong Vang]

On 1/18/06, Robert Hanson <roberth at abbacomm.net> wrote:
>
> }
> } I have a total of 20 CentOS 4.1 systems running on fairly new
> } hardware.  About 6 of them are experiencing strange hangs without any
> } indication -- nothing in /var/log/messages nor on the console --
> } sometime within 10-30 minutes after a reboot.  The systems still
> } responds to ping but you can't ssh to it.  At the console, you could
> } type "root" at the user prompt but it hangs immediately after hitting
> } enter.
> }
> } Memory scan of all systems show no error.
> }
> } Any idea how to troubleshoot this problem.  The system's not
> } responsive to do any troubleshooting and nothing abnormal is in the
> } log.
> }
> } We running htis kernel: kernel-smp-2.6.9-11.EL.i686.rpm.
> }
> } Thanks for any help.
>
> greetings
>
> im quite sure you are most intelligent so you have pry done these things
> already..
>
> the first two things that come to mind are... do you have the latest stable
> "firmware" on those machines

I haven't double checked this, yet.  We have a person from the
hardware vendor here on site so I'll have him double check that.

> are they all the same or is there a common denominator besides CentOS 4.1 ?
>
> and have you tried to install the latest kernels and such... there was
> recent publishing of them
>
> if they are connected to the internet, unplug for testing??
>

These systems are ordered from the same batch (same PO/build spec). 
They're all using the same kernel -- the latest of what CentOS 4.1
provided at that time.

> --
> Robert Hanson - Abba Communications
>    Computer & Internet Services
>  (509) 624-7159 - www.abbacomm.net
>
>
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