Index: sys/kern/kern_sig.c
===================================================================
--- sys/kern/kern_sig.c
+++ sys/kern/kern_sig.c
@@ -3142,8 +3142,9 @@
 			sig |= WCOREFLAG;
 		if (kern_logsigexit)
 			log(LOG_INFO,
-			    "pid %d (%s), uid %d: exited on signal %d%s\n",
+			    "pid %d (%s), jid: %d, uid %d: exited on signal %d%s\n",
 			    p->p_pid, p->p_comm,
+			    p->p_ucred ? (p->p_ucred->cr_prison ? (p->p_ucred->cr_prison->pr_id) : -1) : -1,
 			    td->td_ucred ? td->td_ucred->cr_uid : -1,
 			    sig &~ WCOREFLAG,
 			    sig & WCOREFLAG ? " (core dumped)" : "");