From 21ac1b2c3ebf4735644366e22dccba482a92d558 Mon Sep 17 00:00:00 2001
From: Aaron Goodman <aaronjg@stanford.edu>
Date: Sun, 13 Dec 2020 09:27:03 -0500
Subject: [PATCH] mwan3: fix race condition in route loading

Signed-off-by: Aaron Goodman <aaronjg@stanford.edu>
---
 net/mwan3/files/usr/sbin/mwan3rtmon | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/mwan3/files/usr/sbin/mwan3rtmon b/net/mwan3/files/usr/sbin/mwan3rtmon
index e460615edc..44cd28a911 100755
--- a/net/mwan3/files/usr/sbin/mwan3rtmon
+++ b/net/mwan3/files/usr/sbin/mwan3rtmon
@@ -158,6 +158,7 @@ main()
 	sh -c "echo \$\$; exec $IP monitor route" | {
 		read -r monitor_pid
 		trap_with_arg func_trap "$monitor_pid" SIGINT SIGTERM SIGKILL
+		KILL -SIGSTOP $$
 		while IFS='' read -r line; do
 			[ -z "${line##*table*}" ] && continue
 			LOG debug "handling route update $family '$line'"
@@ -165,11 +166,10 @@ main()
 		done
 	} &
 	child=$!
-	kill -SIGSTOP $child
 	trap_with_arg func_trap "$child" SIGINT SIGTERM SIGKILL
 	mwan3_set_connected_${family}
 	mwan3_add_all_routes ${family}
 	kill -SIGCONT $child
-	wait $!
+	wait $child
 }
 main "$@"
-- 
2.30.2