diff -Naur ./gkrellm-2.3.11/src/sysdeps/linux.c ./gkrellm-2.3.11-new/src/sysdeps/linux.c
--- ./gkrellm-2.3.11/src/sysdeps/linux.c	2019-07-25 06:50:12.000000000 -0700
+++ ./gkrellm-2.3.11-new/src/sysdeps/linux.c	2021-08-30 15:45:15.419917471 -0700
@@ -1283,7 +1283,7 @@
 #define	PROC_MEMINFO_FILE	"/proc/meminfo"
 #define	PROC_VMSTAT_FILE	"/proc/vmstat"
 
-static guint64	swap_total, swap_used;
+static guint64	swap_total, swap_used, swap_free;
 
   /* Kernels >= 2.5.x have tagged formats only in kb units.
   */
@@ -1309,47 +1309,46 @@
 
 	if ((f = fopen(PROC_MEMINFO_FILE, "r")) == NULL)
 		return;
-	while ((fgets(buf, sizeof(buf), f)) != NULL)
-		{
-		if (buf[0] == 'M')
-			{
-			if (!strncmp(buf, "Mem:", 4))
-				sscanf(buf + 5,
-		"%" PRIu64 " %" PRIu64 " %" PRIu64 " %" PRIu64 " %" PRIu64 " %" PRIu64,
-						&total, &x_used, &free,
-						&shared, &buffers, &cached);
-			else if (!strncmp(buf, "MemTotal:", 9))
-				{
+	while ((fgets(buf, sizeof(buf), f)) != NULL){
+		if (buf[0] == 'M'){
+			if (!strncmp(buf, "Mem:", 4)){
+				sscanf(buf + 5,	"%" PRIu64 " %" PRIu64 " %" PRIu64 " %" PRIu64 " %" PRIu64 " %" PRIu64,
+						&total, &x_used, &free,	&shared, &buffers, &cached);
+			}else if(!strncmp(buf, "MemTotal:", 9)){
 				tagged_format_meminfo(buf + 10, &total);
 				using_tagged = TRUE;
-				}
-			else if (!strncmp(buf, "MemFree:", 8))
+			}else if(!strncmp(buf, "MemFree:", 8)){
 				tagged_format_meminfo(buf + 9, &free);
-			else if (!strncmp(buf, "MemShared:", 10))
-				tagged_format_meminfo(buf + 11, &shared);
+
 			}
-		else if (buf[0] == 'S')
-			{
+		}else if (buf[0] == 'S'){
+//SwapCached:
+//SwapTotal:
+//SwapFree:
 			if (!strncmp(buf, "Swap:", 5))
-				sscanf(buf + 6,"%" PRIu64 " %" PRIu64,
-						&swap_total, &swap_used);
+				sscanf(buf + 6,"%" PRIu64 " %" PRIu64, &swap_total, &swap_used);
 			else if (!strncmp(buf, "SwapTotal:", 10))
 				tagged_format_meminfo(buf + 11, &swap_total);
 			else if (!strncmp(buf, "SwapFree:", 9))
-				tagged_format_meminfo(buf + 10, &swap_used);
+				tagged_format_meminfo(buf + 10, &swap_free);
+			//else if (!strncmp(buf, "SwapCached:", 9))
+			//	tagged_format_meminfo(buf + 11, &swap_cached);
 			else if (!strncmp(buf, "Slab:", 5))
 				tagged_format_meminfo(buf + 6, &slab);
-			}
-		else if (buf[0] == 'B' && !strncmp(buf, "Buffers:", 8))
+			else if(!strncmp(buf, "Shmem:", 6))
+				tagged_format_meminfo(buf + 7, &shared);
+		}else if (buf[0] == 'B' && !strncmp(buf, "Buffers:", 8)){
 			tagged_format_meminfo(buf + 9, &buffers);
-		else if (buf[0] == 'C' && !strncmp(buf, "Cached:", 7))
+		}else if (buf[0] == 'C' && !strncmp(buf, "Cached:", 7)){
 			tagged_format_meminfo(buf + 8, &cached);
 		}
+	}
 	fclose(f);
 	if (using_tagged)
 		{
 		x_used = total - free;
-		swap_used = swap_total - swap_used;
+		//swap_used = swap_total - swap_used - swap_cached;
+		swap_used = swap_total - swap_free;
 		}
 	used = x_used - buffers - cached - slab;
 	gkrellm_mem_assign_data(total, used, free, shared, buffers, cached + slab);