All terminal windows will still be closed if any one is killed by an SIGSEGV. Version: ii gnome-terminal 3.22.2-1 amd64 GNOME terminal emulator application There is a workaround starting a dedicated 'gnome-terminal-server: https://unix.stackexchange.com/questions/201900/run-true-multiple-process-instances-of-gnome-terminal Regards, doak