From: Maciej W. Rozycki Date: Fri, 6 Jun 2008 02:28:02 +0000 (+0100) Subject: x86: APIC/SMP: Downgrade the NMI watchdog for "nosmp" X-Git-Tag: v3.12-rc1~20095^2~253^2~7 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=d54db1ac9ecde9bcb8a561595b02c1d970d3a4d6;p=kernel%2Fkernel-generic.git 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 Signed-off-by: Ingo Molnar --- diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c index 8c53d86..f376034 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