--- crash-6.0.3/memory.c.orig
+++ crash-6.0.3/memory.c
@@ -7977,14 +7977,32 @@ kmem_cache_downsize(void)
 	char *cache_buf;
 	uint buffer_size; 
 	int nr_node_ids;
+	int nr_cpu_ids;
 
 	if ((THIS_KERNEL_VERSION < LINUX(2,6,22)) ||
-	    (vt->flags & NODELISTS_IS_PTR) ||
 	    !(vt->flags & PERCPU_KMALLOC_V2_NODES) ||
 	    !kernel_symbol_exists("cache_cache") ||
 	    !MEMBER_EXISTS("kmem_cache", "buffer_size"))
 		return;
 
+	if (vt->flags & NODELISTS_IS_PTR) {
+		/* 
+		 * kmem_cache.array[] is actually sized by 
+		 * the number of cpus; real value is nr_cpu_ids, 
+		 * but fallback is kt->cpus.
+		 */
+		if (kernel_symbol_exists("nr_cpu_ids"))
+			get_symbol_data("nr_cpu_ids", sizeof(int), 
+				&nr_cpu_ids);
+		else 
+			nr_cpu_ids = kt->cpus;
+	
+		ARRAY_LENGTH(kmem_cache_s_array) = nr_cpu_ids;
+		ASSIGN_SIZE(kmem_cache_s) = OFFSET(kmem_cache_s_array) +
+			sizeof(ulong) * nr_cpu_ids;
+		return;
+	}
+
 	cache_buf = GETBUF(SIZE(kmem_cache_s));
 
 	if (!readmem(symbol_value("cache_cache"), KVADDR, cache_buf,