Kernel errors after upgrade from 8.1 to 8.2

[Robert Fitzpatrick]

After following the handbook Chapter 24 to upgrade from 8.1 to 8.2, I am 
getting kernel errors for various postfix commands...

May  9 08:54:13 mx3 kernel: pid 57056 (trivial-rewrite), uid 125: exited 
on signal 11
May  9 08:56:46 mx3 kernel: pid 57086 (smtpd), uid 125: exited on signal 11

I have searched the maillog and can't find any errors between restart 
and such entries as...

May  9 08:54:13 mx3 postfix/master[19357]: warning: process 
/usr/local/libexec/postfix/trivial-rewrite pid 57056 killed by signal 11
May  9 08:56:46 mx3 postfix/master[19357]: warning: process 
/usr/local/libexec/postfix/smtpd pid 57086 killed by signal 11

I updated the ports after the reboot and did a 'portupgrade -af' after 
the kernel update, restart, etc. I had no issues performing the upgrade 
according to the handbook and the System State Comparison seems OK...

mx3# cat outfile.ids | awk '{ print $1 }' | more
Looking
Fetching
Fetching
Inspecting
/boot/kernel/linker.hints
/etc/crontab
/etc/group
/etc/hosts
/etc/mail/aliases
/etc/mail/mailer.conf
/etc/manpath.config
/etc/master.passwd
/etc/motd
/etc/passwd
/etc/pwd.db
/etc/spwd.db
/etc/ssh/sshd_config
/usr/lib32

I also tried 'make deinstall' for postfix and re-installed. And the 
system reports 8.2-RELEASE. All the mail for a test domain seem to be 
flowing without issue, but these kernel messages and warnings tell me 
something is wrong. Can someone suggest what to do next in finding a 
solution? Or is it best to post this to the postfix list?

Thanks, Robert