From fb983f5dbc51273a63b0b5345e4065aa702fe3ff Mon Sep 17 00:00:00 2001
From: Sukru Senli <sukru.senli@inteno.se>
Date: Fri, 22 Dec 2017 15:21:30 +0100
Subject: [PATCH] questd: imonitor: bring down and up the wireless radios when
 bsd or acsd crashes

---
 questd/files/sbin/imonitor | 22 +++++++++++++++-------
 1 file changed, 15 insertions(+), 7 deletions(-)

diff --git a/questd/files/sbin/imonitor b/questd/files/sbin/imonitor
index 0efdf6ab4..74055057f 100755
--- a/questd/files/sbin/imonitor
+++ b/questd/files/sbin/imonitor
@@ -140,9 +140,13 @@ check_ubus_network_call() {
 
 restart_bsd()
 {
-	logger -s -t $0[$$] "Restarting bsd."
-	killall -q -KILL bsd
-	bsd
+	logger -s -t $0[$$] "Restarting WiFi and Band Steering daemon due to bsd hangup."
+	killall -q -15 bsd 2>/dev/null
+	wlctl -i wl0 down 2>/dev/null
+	wlctl -i wl1 down 2>/dev/null
+	wlctl -i wl0 up 2>/dev/null
+	wlctl -i wl1 up 2>/dev/null
+	bsd &
 }
 
 check_bsdcall()
@@ -159,9 +163,13 @@ check_bsdcall()
 
 restart_acsd()
 {
-	logger -s -t $0[$$] "Restarting acsd."
-	killall -q -KILL acsd
-	acsd &
+	logger -s -t $0[$$] "Restarting WiFi and Auto Channel Selection daemon due to acsd high CPU usage."
+	killall -q -9 acsd 2>/dev/null
+	wlctl -i wl0 down 2>/dev/null
+	wlctl -i wl1 down 2>/dev/null
+	wlctl -i wl0 up 2>/dev/null
+	wlctl -i wl1 up 2>/dev/null
+	acsd
 }
 
 check_acsd()
@@ -173,7 +181,7 @@ check_acsd()
 
 	for p in $pcpu; do
 		p=${p%%%*}
-		if [ "$p" -ge "20" ]; then
+		if [ "$p" -ge "40" ]; then
 			return 1
 		fi
 	done