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x86: block irq balancing for timer

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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>
This commit is contained in:
Venki Pallipadi 2007-10-12 23:04:06 +02:00 committed by Thomas Gleixner
parent 3c9aea4742
commit 5fa3a246ea
1 changed files with 1 additions and 1 deletions
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2
arch/x86/kernel/time_64.c
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@ -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"
};