Index: sys/kern/kern_exec.c
===================================================================
RCS file: /cvsroot/src/sys/kern/kern_exec.c,v
retrieving revision 1.446
diff -p -u -r1.446 kern_exec.c
--- sys/kern/kern_exec.c	29 Sep 2017 17:47:29 -0000	1.446
+++ sys/kern/kern_exec.c	19 Oct 2017 14:36:26 -0000
@@ -1825,6 +1825,7 @@ exec_init(int init_boot)
 		pool_init(&exec_pool, NCARGS, 0, 0, PR_NOALIGN|PR_NOTOUCH,
 		    "execargs", &exec_palloc, IPL_NONE);
 		pool_sethardlimit(&exec_pool, maxexec, "should not happen", 0);
+		pool_setlowat(&exec_pool, maxexec);
 	} else {
 		KASSERT(rw_write_held(&exec_lock));
 	}