diff --git a/arch/i386/kernel/nmi.c b/arch/i386/kernel/nmi.c
index 851f3b1c5b1c..a98ba88a8c0c 100644
--- a/arch/i386/kernel/nmi.c
+++ b/arch/i386/kernel/nmi.c
@@ -328,7 +328,7 @@ static int __init check_nmi_watchdog(void)
 	for_each_possible_cpu(cpu)
 		prev_nmi_count[cpu] = per_cpu(irq_stat, cpu).__nmi_count;
 	local_irq_enable();
-	mdelay((10*1000)/nmi_hz); // wait 10 ticks
+	mdelay((20*1000)/nmi_hz); // wait 20 ticks
 
 	for_each_possible_cpu(cpu) {
 #ifdef CONFIG_SMP
diff --git a/arch/x86_64/kernel/nmi.c b/arch/x86_64/kernel/nmi.c
index 17cf2d6b5e99..a90996c27dc8 100644
--- a/arch/x86_64/kernel/nmi.c
+++ b/arch/x86_64/kernel/nmi.c
@@ -317,7 +317,7 @@ int __init check_nmi_watchdog (void)
 	for (cpu = 0; cpu < NR_CPUS; cpu++)
 		counts[cpu] = cpu_pda(cpu)->__nmi_count;
 	local_irq_enable();
-	mdelay((10*1000)/nmi_hz); // wait 10 ticks
+	mdelay((20*1000)/nmi_hz); // wait 20 ticks
 
 	for_each_online_cpu(cpu) {
 		if (!per_cpu(nmi_watchdog_ctlblk, cpu).enabled)