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* Suppress APIC errors on UP x86-64.
@ 2006-02-24  1:42 Dave Jones
  2006-02-24  1:45 ` Andi Kleen
  0 siblings, 1 reply; 7+ messages in thread
From: Dave Jones @ 2006-02-24  1:42 UTC (permalink / raw)
  To: ak; +Cc: Linux Kernel

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();
 }

^ permalink raw reply	[flat|nested] 7+ messages in thread

end of thread, other threads:[~2006-02-24 22:56 UTC | newest]

Thread overview: 7+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2006-02-24  1:42 Suppress APIC errors on UP x86-64 Dave Jones
2006-02-24  1:45 ` Andi Kleen
2006-02-24  1:53   ` Dave Jones
2006-02-24  2:18     ` Andi Kleen
2006-02-24  2:27       ` Dave Jones
2006-02-24  2:37         ` Andi Kleen
2006-02-24 22:56         ` Chris Ball

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