linux-kernel - [PATCH 47/52] leave irqs enabled while calibrating delay.

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Date:	Mon,  3 Mar 2008 14:13:15 -0300
From:	Glauber Costa <gcosta@...hat.com>
To:	linux-kernel@...r.kernel.org
Cc:	akpm@...ux-foundation.org, glommer@...il.com, mingo@...e.hu,
	tglx@...utronix.de, Glauber Costa <gcosta@...hat.com>
Subject: [PATCH 47/52] leave irqs enabled while calibrating delay.

although i386 appearantly does not have problems with the nmi,
we leave irqs enabled, as it is common ground between it and x86_64.

Signed-off-by: Glauber Costa <gcosta@...hat.com>
---
 arch/x86/kernel/smpboot_32.c |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/arch/x86/kernel/smpboot_32.c b/arch/x86/kernel/smpboot_32.c
index 2dd95ba..8c39369 100644
--- a/arch/x86/kernel/smpboot_32.c
+++ b/arch/x86/kernel/smpboot_32.c
@@ -208,8 +208,13 @@ static void __cpuinit smp_callin(void)
 
 	/*
 	 * Get our bogomips.
+	 *
+	 * Need to enable IRQs because it can take longer and then
+	 * the NMI watchdog might kill us.
 	 */
+	local_irq_enable();
 	calibrate_delay();
+	local_irq_disable();
 	Dprintk("Stack at about %p\n",&cpuid);
 
 	/*
-- 
1.5.0.6

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