https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=281751
--- Comment #23 from Konstantin Belousov <k...@freebsd.org> --- Use at least the '-i' option for ktrace, to trace the children as well. >From the attachment 'ktrace /usr/sbin/jail -c -f /etc/jail.conf example', the error comes from the /etc/rc execution in the jail. But we cannot see what happens there because the trace did not followed forks. BTW, did you looked at the jail startup log? -- You are receiving this mail because: You are the assignee for the bug.