The smb.conf file for the 18.04 box shows it as being a standalone server, not a domain member. Is that expected? Are you managing its users locally via smbpasswd?
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1761737 Title: [bionic] samba PANIC, INTERNAL ERROR: Signal 11 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/samba/+bug/1761737/+subscriptions -- ubuntu-bugs mailing list firstname.lastname@example.org https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs