--- ./conf/example.conf.in.orig
+++ ./conf/example.conf.in
@@ -1352,7 +1352,7 @@
 	# Use the old behavior of mlockall to pin all memory.
 	# Prior to version 2.02.62, LVM used mlockall() to pin the whole
 	# process's memory while activating devices.
-	use_mlockall = 0
+	use_mlockall = 1
 
 	# Configuration option activation/monitoring.
 	# Monitor LVs that are activated.