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| author | Keith Owens <kaos@ocs.com.au> | 2007-07-22 11:12:36 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-07-22 11:03:38 -0700 |
| commit | 20fe1d30e7e1c2ee36f11856f090613b0ad58b48 (patch) | |
| tree | f262e0c88f3cf51903e691d57332411f519ca917 | |
| parent | 398cf2abdb51fc96bc08f2a007b1aa25ba6adfba (diff) | |
| download | lwn-20fe1d30e7e1c2ee36f11856f090613b0ad58b48.tar.gz lwn-20fe1d30e7e1c2ee36f11856f090613b0ad58b48.zip | |
i386: Do not include other cpus' interrupt 0 in nmi_watchdog
kstat_irqs(0) includes the count of interrupt 0 from all cpus, not just
the current cpu. The updated interrupt 0 on other cpus can stop the
nmi_watchdog from tripping, so only include the current cpu's int 0.
Signed-off-by: Keith Owens <kaos@ocs.com.au>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | arch/i386/kernel/nmi.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/i386/kernel/nmi.c b/arch/i386/kernel/nmi.c index 03b7f5584d71..99beac7f96ce 100644 --- a/arch/i386/kernel/nmi.c +++ b/arch/i386/kernel/nmi.c @@ -353,7 +353,7 @@ __kprobes int nmi_watchdog_tick(struct pt_regs * regs, unsigned reason) * Take the local apic timer and PIT/HPET into account. We don't * know which one is active, when we have highres/dyntick on */ - sum = per_cpu(irq_stat, cpu).apic_timer_irqs + kstat_irqs(0); + sum = per_cpu(irq_stat, cpu).apic_timer_irqs + kstat_cpu(cpu).irqs[0]; /* if the none of the timers isn't firing, this cpu isn't doing much */ if (!touched && last_irq_sums[cpu] == sum) { |