diff -up numactl-2.0.3-rc3/libnuma.c.orig numactl-2.0.3-rc3/libnuma.c

--- numactl-2.0.3-rc3/libnuma.c.orig	2009-06-17 13:13:28.000000000 -0400

+++ numactl-2.0.3-rc3/libnuma.c	2009-06-17 13:14:10.000000000 -0400

@@ -1209,9 +1209,10 @@ numa_node_to_cpus_v1(int node, unsigned 

 	sprintf(fn, "/sys/devices/system/node/node%d/cpumap", node);

 	f = fopen(fn, "r");

 	if (!f || getdelim(&line, &len, '\n', f) < 1) {

-		numa_warn(W_nosysfs2,

-		   "/sys not mounted or invalid. Assuming one node: %s",

-			  strerror(errno));

+		if (f)

+			numa_warn(W_nosysfs2,

+			   "/sys not mounted or invalid. Assuming one node: %s",

+				  strerror(errno));

 		bitmask.maskp = (unsigned long *)mask;

 		bitmask.size  = buflen_needed * 8;

 		numa_bitmask_setall(&bitmask);

@@ -1287,9 +1288,10 @@ numa_node_to_cpus_v2(int node, struct bi

 	sprintf(fn, "/sys/devices/system/node/node%d/cpumap", node); 

 	f = fopen(fn, "r"); 

 	if (!f || getdelim(&line, &len, '\n', f) < 1) { 

-		numa_warn(W_nosysfs2,

-		   "/sys not mounted or invalid. Assuming one node: %s",

-			  strerror(errno)); 

+		if (f)

+			numa_warn(W_nosysfs2,

+			   "/sys not mounted or invalid. Assuming one node: %s",

+				  strerror(errno)); 

 		numa_bitmask_setall(mask);

 		err = -1;

 	}