Good Morning,
I tried using gdb, but that doesn't work for me:
$ ulimit -c unlimited $ sudo systemctl restart dovecot $ sudo -E getmail getmail version 5.13 Copyright (C) 1998-2019 Charles Cazabon. Licensed under the GNU GPL version 2. SimpleIMAPSSLRetriever:peter.nabbefeld@gmx.de@imap.gmx.net:993: getmailrc: operation error (child pid 19702 killed by signal 6) 1 messages (12551 bytes) retrieved, 0 skipped $ gdb bt 19702 GNU gdb (GDB) 8.3 Copyright (C) 2019 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later http://gnu.org/licenses/gpl.html This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "x86_64-pc-linux-gnu". Type "show configuration" for configuration details. For bug reporting instructions, please see: http://www.gnu.org/software/gdb/bugs/. Find the GDB manual and other documentation resources online at: http://www.gnu.org/software/gdb/documentation/.
For help, type "help". Type "apropos word" to search for commands related to "word"... bt: Datei oder Verzeichnis nicht gefunden. Attaching to process 19702 ptrace: Kein passender Prozess gefunden. /home/peter/NetBeansProjects/19702: Datei oder Verzeichnis nicht gefunden. (gdb)
Finally, I could find a file in /var/lib/systemd/coredump: -rw-r-----+ 1 root root 710416 30. Mai 08:54 core.deliver.1003.d14b28050b8343f5a60c5998ef3947df.19702.1559199286000000.lz4
This is obviously the required dump. However, I'd not attach such a file to a post to the mailing list, so where can I put that? Send it directly to You?
Kind regards
Peter
PS: I'm using Arch Linux - probably the hint above could be added to https://www.dovecot.org/bugreport-mail as a hint for other Arch users, as it's much easier than using gdb for those not using it?