diff options
| author | Maciej W. Rozycki <macro@linux-mips.org> | 2008-05-21 22:10:16 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-07-08 09:12:58 +0200 |
| commit | a1133d8e4ffc2db751eb987a2f3cf8ead67927c3 (patch) | |
| tree | 39fcc6bceff908667af3f84ff21eca18404f6d28 | |
| parent | 73d08e636026bbcb413d4864ca5e917502f8a0f9 (diff) | |
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>
| -rw-r--r-- | arch/x86/kernel/smpboot.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c index 8c53d86e3e86..df60bc7c9cb7 100644 --- a/arch/x86/kernel/smpboot.c +++ b/arch/x86/kernel/smpboot.c @@ -1159,6 +1159,10 @@ static int __init smp_sanity_check(unsigned max_cpus) if (!max_cpus) { printk(KERN_INFO "SMP mode deactivated.\n"); smpboot_clear_io_apic(); + + if (nmi_watchdog != NMI_NONE && nmi_watchdog != NMI_DISABLED) + nmi_watchdog = NMI_LOCAL_APIC; + #ifdef CONFIG_X86_32 connect_bsp_APIC(); #endif |