From: Andi Kleen Date: Mon, 2 Apr 2007 10:14:12 +0000 (+0200) Subject: [PATCH] x86-64: Increase NMI watchdog probing timeout X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=0fb2ebfcb5f0b1916ed5ff260ec953ef616fec7c;p=deliverable%2Flinux.git [PATCH] x86-64: Increase NMI watchdog probing timeout A 4 core Opteron needs longer than 10 ticks for this. Signed-off-by: Andi Kleen --- diff --git a/arch/i386/kernel/nmi.c b/arch/i386/kernel/nmi.c index 851f3b1c5b1c..a98ba88a8c0c 100644 --- a/arch/i386/kernel/nmi.c +++ b/arch/i386/kernel/nmi.c @@ -328,7 +328,7 @@ static int __init check_nmi_watchdog(void) for_each_possible_cpu(cpu) prev_nmi_count[cpu] = per_cpu(irq_stat, cpu).__nmi_count; local_irq_enable(); - mdelay((10*1000)/nmi_hz); // wait 10 ticks + mdelay((20*1000)/nmi_hz); // wait 20 ticks for_each_possible_cpu(cpu) { #ifdef CONFIG_SMP diff --git a/arch/x86_64/kernel/nmi.c b/arch/x86_64/kernel/nmi.c index 17cf2d6b5e99..a90996c27dc8 100644 --- a/arch/x86_64/kernel/nmi.c +++ b/arch/x86_64/kernel/nmi.c @@ -317,7 +317,7 @@ int __init check_nmi_watchdog (void) for (cpu = 0; cpu < NR_CPUS; cpu++) counts[cpu] = cpu_pda(cpu)->__nmi_count; local_irq_enable(); - mdelay((10*1000)/nmi_hz); // wait 10 ticks + mdelay((20*1000)/nmi_hz); // wait 20 ticks for_each_online_cpu(cpu) { if (!per_cpu(nmi_watchdog_ctlblk, cpu).enabled)