[CentOS] Diagnosing random hangs

Tue Dec 19 14:49:43 UTC 2006
Aleksandar Milivojevic <alex at milivojevic.org>

Quoting Mark Belanger <mark_belanger at ltx.com>:

> I have many different centos machines that are hanging
> regulary.  I believe this is due to something our application
> is doing - not a centos specific problem.
> When the machines hang, there is no access to the console
> or remote access(ssh, rsh, etc).
> Any tips on debugging this issue?  It is becoming quite a
> show stopper as we migrate our product from Solaris to
> Linux.

Consider setting up serial console (you'll still be able to run X11 on  
your keyboard/monitor).  Or alternatively, you might try setting up  
network console.

Check out serial-console.txt and networking/netconsole.txt in kernel