[cobalt-users] System hangs terse kernel info included.

[Thomas Sanders <email-sub@xxxxxxxxxx>]

I have been getting errors similar to
"Unable to handle kernel NULL pointer dereference at virtual address 00000000"
in the kernel log

this time there were 3 of these errors with the following in each section.
Process httpd (pid: 6240, stackpage=cf7dd000)
Process sendmail (pid: 3577, stackpage=c2683000)
Process in.qpopper (pid: 3595, stackpage=ceec1000)

Here is a link with the last crash and reboot messages.
http://www.u1.logicx.com/kernel.txt

Does anybody have an idea if this is hardware (RAM) or if its some sort of 
attack?
I am having these problems every 24 hours, sometimes 2 or 3 times daily.

Any ideas are appreciated.

-Thomas