---
 kernel/cpuset.c |    9 +++++++++
 1 file changed, 9 insertions(+)

Index: linux-2.6.22-rc3/kernel/cpuset.c
===================================================================
--- linux-2.6.22-rc3.orig/kernel/cpuset.c
+++ linux-2.6.22-rc3/kernel/cpuset.c
@@ -1741,6 +1741,15 @@ static int cpuset_tasks_open(struct inod
 	 * show up until sometime later on.
 	 */
 	npids = atomic_read(&cs->count);
+	if (!npids) {
+		ctr->buf = kmalloc(2, GFP_KERNEL);
+		if (!ctr->buf)
+			goto err2;
+		ctr->bufsz = snprintf(ctr->buf, 2, " ");
+		file->private_data = ctr;
+		return 0;
+	}
+
 	pidarray = kmalloc(npids * sizeof(pid_t), GFP_KERNEL);
 	if (!pidarray)
 		goto err1;