FreeBSD crashes

[n j]

> I hope someone can help me. I have started to experience
> seemingly random crashes causing FreeBSD to shutdown and
> power off the machine. The only trace I can find as far as
> the reason for the crash is concerned are the following
> excerpts from /var/log/messages:
>
> Mar 23 11:52:36 myhostname kernel: <<22>N>NMIMN NIMIMII IISISSSAAA
> A  20,22 200E,0,I, S  EIEEASI ISAAS f Aff ff
> Mar 23 11:52:36 myhostname kernel: f
> Mar 23 11:52:36 myhostname kernel:
> Mar 23 11:52:36 myhostname kernel: f<
> Mar 23 11:52:36 myhostname kernel: 2<>2>
> Mar 23 11:52:36 myhostname kernel: f
> Mar 23 11:52:36 myhostname kernel:
> Mar 23 11:52:47 myhostname syslogd: exiting on signal 15
> Mar 23 13:04:32 myhostname syslogd: kernel boot file is
> /boot/kernel/kernel

Small update: I have received some feedback that this seemingly random
junk is related to ipfw
(http://www.freebsd.org/cgi/query-pr.cgi?pr=116458).

However, I have also received information that this junk might not be
completely random and could be, in fact, related to NMI (non-maskable
interrupt) which would suggest hardware error. Any thoughts on this?

-- 
Nino