linux-kernel - [PATCH 73/79] [PATCH] add extra sanity check

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Message-Id: <1205947902868-git-send-email-gcosta@redhat.com>
Date:	Wed, 19 Mar 2008 14:26:08 -0300
From:	Glauber de Oliveira Costa <gcosta@...hat.com>
To:	linux-kernel@...r.kernel.org
Cc:	akpm@...ux-foundation.org, tglx@...utronix.de, mingo@...e.hu,
	ak@...e.de, Glauber Costa <gcosta@...hat.com>
Subject: [PATCH 73/79] [PATCH] add extra sanity check

From: Glauber Costa <gcosta@...hat.com>

This test exists in x86_64 and also applies to i386. So we add it

Signed-off-by: Glauber Costa <gcosta@...hat.com>
---
 arch/x86/kernel/smpboot_32.c |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/arch/x86/kernel/smpboot_32.c b/arch/x86/kernel/smpboot_32.c
index 6be36d3..ae23b60 100644
--- a/arch/x86/kernel/smpboot_32.c
+++ b/arch/x86/kernel/smpboot_32.c
@@ -118,6 +118,12 @@ static void __init disable_smp(void)
 
 static int __init smp_sanity_check(unsigned max_cpus)
 {
+	if (!physid_isset(hard_smp_processor_id(), phys_cpu_present_map)) {
+		printk(KERN_WARNING "weird, boot CPU (#%d) not listed"
+				    "by the BIOS.\n", hard_smp_processor_id());
+		physid_set(hard_smp_processor_id(), phys_cpu_present_map);
+	}
+
 	/*
 	 * If we couldn't find an SMP configuration at boot time,
 	 * get out of here now!
-- 
1.5.0.6

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