I have been remiss in forwarding this bug report, thinking I would get time to build a concise test case. It keeps not happening, so here you go.
A Debian user reported [1] a problem where their cleanup process was killed by signal 11 during local mail injection: Aug 06 16:57:30 amilcar postfix/pickup[11470]: warning: maildrop/88D7A333A: error writing 7082252D6: queue file write error Aug 06 16:57:30 amilcar postfix/master[6205]: warning: process /usr/lib/postfix/sbin/cleanup pid 18641 killed by signal 11 We did the usual is it apparmor dance. They did provide a trace [2]. After some work they discovered that the users associated with all the failures had a passwd comment set to a single space, e.g.[3]: username:x:1234:1234: :/home/username:/bin/bash This was using Postfix 3.4.14. Any suggestions? Scott K [1] https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=968057 [2] https://bugs.debian.org/cgi-bin/bugreport.cgi? att=1;bug=968057;filename=cleanup.strace.out;msg=5 [3] https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=968057#29
