On 8/18/2014 8:36 AM, Ben Johnson wrote:
Just an observation: I sent another message to the list a few days before this message, describing an unhandled exit scenario where dovecot-antispam plug-in is concerned ("Re: Backtrace io_add(0x1) called twice fd= (was Exit status code 134; what is it, in the context of Dovecot Antispam plug-in?)", and another user submitted a similar message with subject "antispam plugin crash".
Yep... disabling the antispam plugin stops the crashing.
Ironically, the very reason for which I replaced my distro's source repos with
deb http://xi.rename-it.nl/debian/ stable-auto/dovecot-2.2 main deb-src http://xi.rename-it.nl/debian/ stable-auto/dovecot-2.2 main
and upgraded to the latest available package there is to get antispam working with Ubuntu 14.04 LTS. Out-of-the-box, the plugin does not work on 14.04 (at least with my particular configuration), which includes Dovecot 2.2.9. I started a different thread on that subject, but never followed-up with the appropriate debugging info.
Perhaps the next step is to go back to Dovecot 2.2.9 via the Ubuntu repos and capture a debug backtrace for dovecot's "deliver" executable (since that's where the antispam-related crash occurs on that version of Dovecot).
-Ben