Suppress APIC errors on UP x86-64.

Dave Jones
2006-02-24T01:42:37Z

Quite a few UP x86-64 laptops print APIC error 40's repeatedly
when they run an SMP kernel (And Fedora doesn't ship a UP x86-64 kernel
any more). We can suppress this as there's not really anything we
can do about them.

Signed-off-by: Dave Jones <davej@redhat.com>

--- linux-2.6.14/arch/x86_64/kernel/apic.c~ 2005-12-07 15:17:33.000000000 -0500
+++ linux-2.6.14/arch/x86_64/kernel/apic.c 2005-12-07 15:18:16.000000000 -0500
@@ -1032,7 +1032,8 @@ asmlinkage void smp_error_interrupt(void
6: Received illegal vector
7: Illegal register address
*/
- printk (KERN_DEBUG "APIC error on CPU%d: %02x(%02x)\n",
+ if (num_online_cpus() > 1)
+ printk (KERN_DEBUG "APIC error on CPU%d: %02x(%02x)\n",
smp_processor_id(), v , v1);
irq_exit();
}