dovecot: auth-worker: Fatal: master: service(auth-worker): child XXXXX killed with signal 11

[Aki Tuomi]

On 22.05.2017 21:53, dovecot at jeffandjessi.com wrote:
> Tried to enable core dumps ,but couldnt get core dumps to work ? 
>
> The only thing is that a recently pkgsrc (netbsd) update create 2
> packages, one for dovecot and one for mysql plugin , sense then now this
> error appears. 
>
> ,but it appears the .so lib files are installed and linked correctly. 
>
> Double checked all file permissions and user permissions as well as
> chroot , etc, etc, ,etc.... 
>
> cant seem to narrow this one down .... 
>
> any ideas on trouble shooting would be great .... 
>
> even tried running a trace with gdb -p on the process ,but it just dies
> with a signal 11 .... 
>
>  

Getting a core dump these days can be bit troublesome:

1. mkdir /var/core && chmod 1777 /var/core
2. sysctl kernel.core_pattern=/var/core/core.%p
3. sysctl fs.suid_dumpable = 2
4a. systemd: create /etc/systemd/system/dovecot.service.d/env.conf

[Service]
LimitCORE=infinity

4b. ulimit -c unlimited
5. set in dovecot.conf

service auth-worker {
  chroot =
}

6. try again