Commit 5fa3a246 authored Oct 12, 2007 by Venki Pallipadi Committed by Thomas Gleixner Oct 12, 2007

x86: block irq balancing for timer



Disable irq balancing on IRQ0.  Several SIS chipsets lock up when you try to
change affinity of IRQ #0.

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: john stultz <johnstul@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>

parent 3c9aea47

arch/x86/kernel/time_64.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -360,7 +360,7 @@ void stop_timer_interrupt(void)

		static struct irqaction irq0 = {
		.handler = timer_interrupt,
		.flags = IRQF_DISABLED \| IRQF_IRQPOLL,
		.flags = IRQF_DISABLED \| IRQF_IRQPOLL \| IRQF_NOBALANCING,
		.mask = CPU_MASK_NONE,
		.name = "timer"
		};