[Dovecot] Dovecot crashing

[Matt Juszczak]

Hi all,

1.0-test76 is crashing about every two weeks.

Got this in the log file:

pid 76217 (dovecot-auth), uid 0: exited on signal 6 (core dumped)
pid 61724 (dovecot-auth), uid 0: exited on signal 6 (core dumped)
pid 52961 (dovecot-auth), uid 0: exited on signal 6 (core dumped)
pid 81257 (dovecot-auth), uid 0: exited on signal 6 (core dumped)

Also a bunch of these around the same time...

arplookup 123.456.227.254 failed: host is not on local network
arplookup 123.456.227.254 failed: host is not on local network
arplookup 123.456.227.254 failed: host is not on local network
arplookup 123.456.227.254 failed: host is not on local network
arplookup 123.456.227.254 failed: host is not on local network

(I changed the first two octets).

Anyway, it seems that dovecot is crashing.   A simple restart brings it 
back up.  Its odd that it would work for a while and then crash, is there 
some kind of remote exploit causing it to crash?

It says core dumped, but I'm not sure where it would put the core.

Also, all of our stuff is LDAP.  We dont talk to local passwd files at 
all.  Is there a way I can run the dovecot-auth process as non root? 
I know there's an option in the config but i tried it and it did not seem 
to want to restart (the process).

Thanks,

Matt