diff --git a/WHATS_NEW b/WHATS_NEW
index bbad63dc1..4f5b4a3a2 100644
--- a/WHATS_NEW
+++ b/WHATS_NEW
@@ -1,5 +1,6 @@
 Version 2.02.86 -  
 =================================
+  Downgrade critical_section errors to debug level until it is moved to libdm.
   Fix ignored background polling default in vgchange -ay.
   Fix pvmove activation sequences to avoid trapped I/O with multiple LVs.
   Annotate critical section debug messages.
diff --git a/lib/mm/memlock.c b/lib/mm/memlock.c
index 2ce81ba9e..201eff2f2 100644
--- a/lib/mm/memlock.c
+++ b/lib/mm/memlock.c
@@ -405,8 +405,9 @@ void critical_section_inc(struct cmd_context *cmd, const char *reason)
 
 void critical_section_dec(struct cmd_context *cmd, const char *reason)
 {
+	/* FIXME Maintain accurate suspended device counter in libdevmapper */
 	if (!_critical_section_count)
-		log_error(INTERNAL_ERROR "_critical_section has dropped below 0.");
+		log_debug("_critical_section has dropped below 0.");
 	--_critical_section_count;
 	log_debug("critical_section_dec to %d (%s).", _critical_section_count,
 		  reason);