Random server reboot after update to CentOS 5.3

Fri May 22 06:16:10 CDT 2009

On May 21 Peter Hopfgartner wrote:

> We upgraded a Dell Poweredge PE 1950 Server the 8th of May. Since then
> the server rebooted 3 times without external cause (it is located in a
> server farm with redundant power supply etc.). Looking at the servers
> monitoring infrastructure with Dell's own OpenManage tools, I  get
> strange errors:

What's your MTU?

I've seen the combination of bnx2 + 9000-byte MTU + CentOS 5.3 panic the 
kernel. (PE 6950, R710, R805).

Either dropping the MTU back to 1500 or dropping the kernel back to CentOS 
5.2 stops the panics happening.

It might be related to 
<https://bugzilla.redhat.com/show_bug.cgi?id=482747>. I don't know.

If anyone else knows of a proper fix, I'm all ears.

Matt