From 0df1ba8cabc6c2d613921c75e525826e6eb3210b Mon Sep 17 00:00:00 2001 From: Glauber de Oliveira Costa Date: Wed, 19 Mar 2008 14:26:08 -0300 Subject: [PATCH] x86: add extra sanity check This test exists in x86_64 and also applies to i386. So we add it Signed-off-by: Glauber Costa Signed-off-by: Ingo Molnar --- arch/x86/kernel/smpboot_32.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/x86/kernel/smpboot_32.c b/arch/x86/kernel/smpboot_32.c index 6be36d3eea4e..ae23b603978c 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! -- 2.30.2