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authorMaciej W. Rozycki <macro@linux-mips.org>2008-06-06 03:28:02 +0100
committerIngo Molnar <mingo@elte.hu>2008-07-08 09:13:19 +0200
commitd54db1ac9ecde9bcb8a561595b02c1d970d3a4d6 (patch)
tree31e92132009031f3bce071afe3db11b6a0e0f1c6 /arch/x86/kernel/smpboot.c
parent19662027488946e34dd54d3bb408fa3307681d7d (diff)
downloadlinux-d54db1ac9ecde9bcb8a561595b02c1d970d3a4d6.tar.gz
x86: APIC/SMP: Downgrade the NMI watchdog for "nosmp"
 If configured to use the I/O APIC, the NMI watchdog is deemed to fail if
the chip has been deactivated as a result of "nosmp".  Downgrade to the
local APIC watchdog similarly to what is done for the UP case.

Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/smpboot.c')
-rw-r--r--arch/x86/kernel/smpboot.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index 8c53d86e3e86..f3760349c84f 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -1159,6 +1159,9 @@ static int __init smp_sanity_check(unsigned max_cpus)
 	if (!max_cpus) {
 		printk(KERN_INFO "SMP mode deactivated.\n");
 		smpboot_clear_io_apic();
+
+		localise_nmi_watchdog();
+
 #ifdef CONFIG_X86_32
 		connect_bsp_APIC();
 #endif