[Dovecot] POP3/IMAP crash signal 10

[Timo Sirainen]

On Mon, 2011-11-28 at 03:24 +0000, Patrick Wood wrote:
> Nov 28 14:11:02 mailserver dovecot: [ID 583609 mail.error] master: Error: service(pop3-login): child 28277 killed with signal 10 (core not dumped - set service pop3-log
> in { drop_priv_before_exec=yes })

You can easily reproduce this? gdb backtrace is needed to get anything
useful out of this crash. Try with:

service pop3-login {
  executable = pop3-login -D
  drop_priv_before_exec = yes
}

Now when it crashes, it hopefully says that it's dumping a core
(to /usr/local/var/run/dovecot/login/core)? If not, try attaching gdb
directly to the process:

service pop3-login {
  process_min_avail = 1
  service_count = 0
}

gdb /usr/local/libexec/dovecot/pop3-login <pid of pop3-login>
cont
<make it crash>
bt full