From: Andrew Morton <akpm@osdl.org>

printk timestamps are all zero.  Someone needs to call set_cyc2ns_scale().  

Cc: John Stultz <johnstul@us.ibm.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Andi Kleen <ak@muc.de>
Cc: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
---

 arch/x86_64/kernel/time.c |    1 +
 1 file changed, 1 insertion(+)

Index: linux-2.6.20-rc6-mm/arch/x86_64/kernel/time.c
===================================================================
--- linux-2.6.20-rc6-mm.orig/arch/x86_64/kernel/time.c
+++ linux-2.6.20-rc6-mm/arch/x86_64/kernel/time.c
@@ -361,6 +361,7 @@ void __init time_init(void)
 	else
 		vgetcpu_mode = VGETCPU_LSL;
 
+	set_cyc2ns_scale(cpu_khz);
 	printk(KERN_INFO "time.c: Detected %d.%03d MHz processor.\n",
 		cpu_khz / 1000, cpu_khz % 1000);
 	setup_irq(0, &irq0);