--- linux-2.6.16.1/arch/alpha/kernel/setup.c.old	2006-04-05 13:01:38.585051580 +0100
+++ linux-2.6.16.1/arch/alpha/kernel/setup.c	2006-04-05 13:02:24.412099456 +0100
@@ -24,6 +24,7 @@
 #include <linux/config.h>	/* CONFIG_ALPHA_LCA etc */
 #include <linux/mc146818rtc.h>
 #include <linux/console.h>
+#include <linux/cpu.h>
 #include <linux/errno.h>
 #include <linux/init.h>
 #include <linux/string.h>
@@ -477,6 +478,22 @@
 #undef PFN_PHYS
 #undef PFN_MAX
 
+static struct cpu cpu_devices[NR_CPUS];
+
+int __init alpha_init(void)
+{
+	int i;
+
+	/* register CPU devices */
+	for (i = 0; i < NR_CPUS; i++)
+		if (cpu_possible(i))
+			register_cpu(&cpu_devices[i], i, NULL);
+
+	return 0;
+}
+
+arch_initcall(alpha_init);
+
 void __init
 setup_arch(char **cmdline_p)
 {