Index: head/sys/netinet/tcp_subr.c
===================================================================
--- head/sys/netinet/tcp_subr.c
+++ head/sys/netinet/tcp_subr.c
@@ -654,8 +654,7 @@
 		    hashsize);
 	}
 	in_pcbinfo_init(&V_tcbinfo, "tcp", &V_tcb, hashsize, hashsize,
-	    "tcp_inpcb", tcp_inpcb_init, NULL, UMA_ZONE_NOFREE,
-	    IPI_HASHFIELDS_4TUPLE);
+	    "tcp_inpcb", tcp_inpcb_init, NULL, 0, IPI_HASHFIELDS_4TUPLE);
 
 	/*
 	 * These have to be type stable for the benefit of the timers.