Hello! Tobias Geerinckx-Rice skribis: > + ;; The file descriptor ulimit must be raised in the > + ;; environment from which the daemon is launched; see > + ;; https://gitweb.torproject.org/tor.git/plain/doc/TUNING > + ;; The exact number is somewhat arbitrary but taken from > + ;; https://gitweb.torproject.org/debian/tor.git/tree/debian/tor.init#n40 > (start #~(make-forkexec-constructor/container > - (list #$(file-append tor "/bin/tor") "-f" #$torrc) > + (list #$(file-append bash "/bin/bash") "-c" > + (string-append "ulimit -n 32768; exec " > + #$(file-append tor "/bin/tor") > + " -f " #$torrc)) Instead of going through Bash, what about something like: (lambda _ (let ((pid (fork+exec-command/container …))) (container-excursion* pid (lambda () (setrlimit 'nofile 32768 32768))) pid)) ? Ludo’.