Redirect kmsg to /dev/log and detect hungup

1. ihkmond retrieves kmsg when the amount of kmsg exceeds the threashold and
   /dev/mcosX is deleted
2. ihkmond periodically monitors OS status change to detect hungup

arch/x86/tools/mcstop+release-smp-x86.sh.in

@@ -21,12 +21,6 @@ irqbalance_used=""
 # No SMP module? Exit.
 if ! grep ihk_smp_x86 /proc/modules &>/dev/null; then exit 0; fi
 
-# Stop mcklogd
-while pgrep "mcklogd" > /dev/null 2>&1;
-do
-	pkill -9 mcklogd
-done
-
 if [ "`systemctl status irqbalance_mck.service 2> /dev/null |grep -E 'Active: active'`" != "" ]; then
 	irqbalance_used="yes"
 	if ! systemctl stop irqbalance_mck.service 2>/dev/null; then
@@ -41,9 +35,15 @@ fi
 if ls /dev/mcos* 1>/dev/null 2>&1; then
 	for i in /dev/mcos*; do
 		ind=`echo $i|cut -c10-`;
-		if ! ${SBINDIR}/ihkconfig 0 destroy $ind; then
-			echo "error: destroying LWK instance $ind failed" >&2
-			exit 1
+		# Retry when conflicting with ihkmond
+		nretry=0
+		until ${SBINDIR}/ihkconfig 0 destroy $ind || [ $nretry -lt 4 ]; do
+		    sleep 0.25
+		    nretry=$[ $nretry + 1 ]
+		done
+		if [ $nretry -eq 4 ]; then
+		    echo "error: destroying LWK instance $ind failed" >&2
+		    exit 1
 		fi
 	done
 fi
@@ -102,6 +102,12 @@ if grep -E 'ihk\s' /proc/modules &>/dev/null; then
 	fi
 fi
 
+# Stop ihkmond
+pid=`pidof ihkmond`
+if [ "${pid}" != "" ]; then
+    sudo kill -9 ${pid} > /dev/null 2> /dev/null
+fi
+
 # Start irqbalance with the original settings
 if [ "${irqbalance_used}" != "" ]; then
 	if ! etcdir=@ETCDIR@ perl -e '$etcdir=$ENV{'etcdir'}; @files = grep { -f } glob "$etcdir/proc/irq/*/smp_affinity"; foreach $file (@files) { $dest = substr($file, length($etcdir)); if(0) {print "cp $file $dest\n";} system("cp $file $dest 2>/dev/null"); }'; then