Quoting Mark Belanger mark_belanger@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 documentation.