--- vmstat.c
+++ vmstat.c	2015-01-27 14:57:19.467491788 +0000
@@ -295,7 +295,7 @@ static void new_format(void)
 	unsigned int intr[2], ctxt[2];
 	unsigned int sleep_half;
 	unsigned long kb_per_page = sysconf(_SC_PAGESIZE) / 1024ul;
-	int debt = 0;		/* handle idle ticks running backwards */
+	long long debt = 0;		/* handle idle ticks running backwards */
 	struct tm *tm_ptr;
 	time_t the_time;
 	char timebuf[32];
@@ -386,12 +386,12 @@ static void new_format(void)
 
 		/* idle can run backwards for a moment -- kernel "feature" */
 		if (debt) {
-			didl = (int)didl + debt;
-			debt = 0;
+			didl = (long long)didl + debt;
+			debt = 0LL;
 		}
-		if ((int)didl < 0) {
-			debt = (int)didl;
-			didl = 0;
+		if ((long long)didl < 0) {
+			debt = (long long)didl;
+			didl = 0ULL;
 		}
 
 		Div = duse + dsys + didl + diow + dstl;