--- busybox_ORIG/procps/top.c	2014-12-24 12:16:11.506432036 +0530
+++ busybox/procps/top.c	2015-12-15 09:55:44.893666699 +0800
@@ -504,8 +504,8 @@
 	FILE *fp;
 	char buf[80];
 	char scrbuf[80];
-	unsigned long total, used, mfree, shared, buffers, cached;
-
+	unsigned long total, used, mfree, shared, buffers, cached, available;
+	unsigned char method = 0;
 	/* read memory info */
 	fp = xfopen_for_read("meminfo");
 
@@ -537,14 +537,15 @@
 		 * sizes in kilobytes. This should be safe for both 2.4 and
 		 * 2.6.
 		 */
+		method = 1;
 		fscanf(fp, "MemFree: %lu %s\n", &mfree, buf);
 
 		/*
 		 * MemShared: is no longer present in 2.6. Report this as 0,
 		 * to maintain consistent behavior with normal procps.
 		 */
-		if (fscanf(fp, "MemShared: %lu %s\n", &shared, buf) != 2)
-			shared = 0;
+		if (fscanf(fp, "MemAvailable: %lu %s\n", &available, buf) != 2)
+			available = 0;
 
 		fscanf(fp, "Buffers: %lu %s\n", &buffers, buf);
 		fscanf(fp, "Cached: %lu %s\n", &cached, buf);
@@ -556,7 +557,12 @@
 	/* output memory info */
 	if (scr_width > (int)sizeof(scrbuf))
 		scr_width = sizeof(scrbuf);
-	snprintf(scrbuf, scr_width,
+	if (method == 1)
+		snprintf(scrbuf, scr_width,
+		"Mem: %luK used, %luK free, %luK available, %luK buff, %luK cached",
+		used, mfree, available, buffers, cached);		
+	else
+		snprintf(scrbuf, scr_width,
 		"Mem: %luK used, %luK free, %luK shrd, %luK buff, %luK cached",
 		used, mfree, shared, buffers, cached);
 	/* go to top & clear to the end of screen */