Index: sys/compat/linux/linux_misc.c
===================================================================
--- sys/compat/linux/linux_misc.c
+++ sys/compat/linux/linux_misc.c
@@ -1069,6 +1069,14 @@
 	 */
 	options |= WEXITED | WTRAPPED;
 
+	/*
+	 * As FreeBSD does not have __WALL option bit analogue explicitly set all
+	 * possible option bits to emulate Linux __WALL wait option bit. The same
+	 * for waitid system call.
+	 */
+	if ((args->options & __WALL) != 0)
+		options |= WUNTRACED | WCONTINUED | WLINUXCLONE;
+
 	if (args->pid == WAIT_ANY) {
 		idtype = P_ALL;
 		id = 0;
@@ -1096,6 +1104,9 @@
 
 	options = 0;
 	linux_to_bsd_waitopts(args->options, &options);
+	if ((args->options & __WALL) != 0)
+		options |= WEXITED | WTRAPPED | WUNTRACED |
+		    WCONTINUED | WLINUXCLONE;
 
 	switch (args->idtype) {
 	case LINUX_P_ALL: