diff --git a/NEWS b/NEWS
index 6cf94c55..a6258354 100644
--- a/NEWS
+++ b/NEWS
@@ -6,6 +6,7 @@ ps: security labels can contain any printable ASCII
 top: help and version message on stdout, with exit(0)    #283541
 ps: SIGTSTP from ^Z shouldn't print bug email address
 slabtop: compile with glibc 2.2.17 (and older, likely)
+slabtop: fix overflow on huge NUMA boxes
 
 procps-3.2.3 --> procps-3.2.4
 
diff --git a/proc/slab.c b/proc/slab.c
index 29e6b589..f1a6bc21 100644
--- a/proc/slab.c
+++ b/proc/slab.c
@@ -136,8 +136,7 @@ static int parse_slabinfo20(struct slab_info **list, struct slab_stat *stats,
 		if (curr->obj_size > stats->max_obj_size)
 			stats->max_obj_size = curr->obj_size;
 
-		curr->cache_size = curr->nr_slabs * curr->pages_per_slab *
-			page_size;
+		curr->cache_size = (unsigned long)curr->nr_slabs * curr->pages_per_slab * page_size;
 
 		if (curr->nr_objs) {
 			curr->use = 100 * curr->nr_active_objs / curr->nr_objs;
@@ -147,8 +146,8 @@ static int parse_slabinfo20(struct slab_info **list, struct slab_stat *stats,
 
 		stats->nr_objs += curr->nr_objs;
 		stats->nr_active_objs += curr->nr_active_objs;
-		stats->total_size += curr->nr_objs * curr->obj_size;
-		stats->active_size += curr->nr_active_objs * curr->obj_size;
+		stats->total_size += (unsigned long)curr->nr_objs * curr->obj_size;
+		stats->active_size += (unsigned long)curr->nr_active_objs * curr->obj_size;
 		stats->nr_pages += curr->nr_slabs * curr->pages_per_slab;
 		stats->nr_slabs += curr->nr_slabs;
 		stats->nr_active_slabs += curr->nr_active_slabs;
@@ -215,8 +214,7 @@ static int parse_slabinfo11(struct slab_info **list, struct slab_stat *stats,
 		if (curr->obj_size > stats->max_obj_size)
 			stats->max_obj_size = curr->obj_size;
 
-		curr->cache_size = curr->nr_slabs * curr->pages_per_slab *
-			page_size;
+		curr->cache_size = (unsigned long)curr->nr_slabs * curr->pages_per_slab * page_size;
 
 		if (curr->nr_objs) {
 			curr->use = 100 * curr->nr_active_objs / curr->nr_objs;
@@ -230,8 +228,8 @@ static int parse_slabinfo11(struct slab_info **list, struct slab_stat *stats,
 
 		stats->nr_objs += curr->nr_objs;
 		stats->nr_active_objs += curr->nr_active_objs;
-		stats->total_size += curr->nr_objs * curr->obj_size;
-		stats->active_size += curr->nr_active_objs * curr->obj_size;
+		stats->total_size += (unsigned long)curr->nr_objs * curr->obj_size;
+		stats->active_size += (unsigned long)curr->nr_active_objs * curr->obj_size;
 		stats->nr_pages += curr->nr_slabs * curr->pages_per_slab;
 		stats->nr_slabs += curr->nr_slabs;
 		stats->nr_active_slabs += curr->nr_active_slabs;
diff --git a/proc/slab.h b/proc/slab.h
index abe47688..ea17ddc9 100644
--- a/proc/slab.h
+++ b/proc/slab.h
@@ -1,35 +1,35 @@
 #ifndef _PROC_SLAB_H
 #define _PROC_SLAB_H
 
-#define SLAB_INFO_NAME_LEN	64
+#define SLAB_INFO_NAME_LEN      64
 
 struct slab_info {
-	char name[SLAB_INFO_NAME_LEN];	/* name of this cache */
+	char name[SLAB_INFO_NAME_LEN];  /* name of this cache */
 	struct slab_info *next;
-	int nr_objs;			/* number of objects in this cache */
-	int nr_active_objs;		/* number of active objects */
-	int obj_size;			/* size of each object */
-	int objs_per_slab;		/* number of objects per slab */
-	int pages_per_slab;		/* number of pages per slab */
-	int nr_slabs;			/* number of slabs in this cache */
-	int nr_active_slabs;		/* number of active slabs */
-	int use;			/* percent full: total / active */
-	int cache_size;			/* size of entire cache */
+	unsigned long cache_size;       /* size of entire cache */
+	unsigned nr_objs;               /* number of objects in this cache */
+	unsigned nr_active_objs;        /* number of active objects */
+	unsigned obj_size;              /* size of each object */
+	unsigned objs_per_slab;         /* number of objects per slab */
+	unsigned pages_per_slab;        /* number of pages per slab */
+	unsigned nr_slabs;              /* number of slabs in this cache */
+	unsigned nr_active_slabs;       /* number of active slabs */
+	unsigned use;                   /* percent full: total / active */
 };
 
 struct slab_stat {
-	int nr_objs;		/* number of objects, among all caches */
-	int nr_active_objs;	/* number of active objects, among all caches */
-	int total_size;		/* size of all objects */
-	int active_size;	/* size of all active objects */
-	int nr_pages;		/* number of pages consumed by all objects */
-	int nr_slabs;		/* number of slabs, among all caches */
-	int nr_active_slabs;	/* number of active slabs, among all caches */
-	int nr_caches;		/* number of caches */
-	int nr_active_caches;	/* number of active caches */
-	int avg_obj_size;	/* average object size */
-	int min_obj_size;	/* size of smallest object */
-	int max_obj_size;	/* size of largest object */
+	unsigned long total_size;       /* size of all objects */
+	unsigned long active_size;      /* size of all active objects */
+	unsigned nr_objs;               /* number of objects, among all caches */
+	unsigned nr_active_objs;        /* number of active objects, among all caches */
+	unsigned nr_pages;              /* number of pages consumed by all objects */
+	unsigned nr_slabs;              /* number of slabs, among all caches */
+	unsigned nr_active_slabs;       /* number of active slabs, among all caches */
+	unsigned nr_caches;             /* number of caches */
+	unsigned nr_active_caches;      /* number of active caches */
+	unsigned avg_obj_size;          /* average object size */
+	unsigned min_obj_size;          /* size of smallest object */
+	unsigned max_obj_size;          /* size of largest object */
 };
 
 extern void put_slabinfo(struct slab_info *);
diff --git a/slabtop.c b/slabtop.c
index d33d4da7..36025e2f 100644
--- a/slabtop.c
+++ b/slabtop.c
@@ -346,27 +346,17 @@ int main(int argc, char *argv[])
 		}
 
 		move(0,0);
-		printw(	" Active / Total Objects (%% used)    : "
-				"%d / %d (%.1f%%)\n"
-			" Active / Total Slabs (%% used)      : "
-				"%d / %d (%.1f%%)\n"
-			" Active / Total Caches (%% used)     : "
-				"%d / %d (%.1f%%)\n"
-			" Active / Total Size (%% used)       : "
-				"%.2fK / %.2fK (%.1f%%)\n"
-			" Minimum / Average / Maximum Object : "
-				"%.2fK / %.2fK / %.2fK\n\n",
-			stats.nr_active_objs, stats.nr_objs,
-			100.0 * stats.nr_active_objs / stats.nr_objs,
-			stats.nr_active_slabs, stats.nr_slabs,
-			100.0 * stats.nr_active_slabs / stats.nr_slabs,
-			stats.nr_active_caches, stats.nr_caches,
-			100.0 * stats.nr_active_caches / stats.nr_caches,
-			stats.active_size / 1024.0, stats.total_size / 1024.0,
-			100.0 * stats.active_size / stats.total_size,
-			stats.min_obj_size / 1024.0,
-			stats.avg_obj_size / 1024.0,
-			stats.max_obj_size / 1024.0);
+		printw(	" Active / Total Objects (%% used)    : %d / %d (%.1f%%)\n"
+			" Active / Total Slabs (%% used)      : %d / %d (%.1f%%)\n"
+			" Active / Total Caches (%% used)     : %d / %d (%.1f%%)\n"
+			" Active / Total Size (%% used)       : %.2fK / %.2fK (%.1f%%)\n"
+			" Minimum / Average / Maximum Object : %.2fK / %.2fK / %.2fK\n\n",
+			stats.nr_active_objs, stats.nr_objs, 100.0 * stats.nr_active_objs / stats.nr_objs,
+			stats.nr_active_slabs, stats.nr_slabs, 100.0 * stats.nr_active_slabs / stats.nr_slabs,
+			stats.nr_active_caches, stats.nr_caches, 100.0 * stats.nr_active_caches / stats.nr_caches,
+			stats.active_size / 1024.0, stats.total_size / 1024.0, 100.0 * stats.active_size / stats.total_size,
+			stats.min_obj_size / 1024.0, stats.avg_obj_size / 1024.0, stats.max_obj_size / 1024.0
+		);
 
 		slab_list = slabsort(slab_list);
 
@@ -378,10 +368,10 @@ int main(int argc, char *argv[])
 
 		curr = slab_list;
 		for (i = 0; i < rows - 8 && curr->next; i++) {
-			printw("%6d %6d %3d%% %7.2fK %6d %8d %9dK %-23s\n",
+			printw("%6u %6u %3u%% %7.2fK %6u %8u %9uK %-23s\n",
 				curr->nr_objs, curr->nr_active_objs, curr->use,
 				curr->obj_size / 1024.0, curr->nr_slabs,
-				curr->objs_per_slab, curr->cache_size / 1024,
+				curr->objs_per_slab, (unsigned)(curr->cache_size / 1024),
 				curr->name);
 			curr = curr->next;
 		}