From: Andi Kleen Sync nmi_watchdog.txt with reality on x86-64. Signed-off-by: Andrew Morton --- 25-akpm/Documentation/nmi_watchdog.txt | 3 +++ 1 files changed, 3 insertions(+) diff -puN Documentation/nmi_watchdog.txt~documentation-fix-for-nmi-watchdog Documentation/nmi_watchdog.txt --- 25/Documentation/nmi_watchdog.txt~documentation-fix-for-nmi-watchdog 2004-07-31 16:56:12.786570240 -0700 +++ 25-akpm/Documentation/nmi_watchdog.txt 2004-07-31 16:56:12.790569632 -0700 @@ -58,6 +58,9 @@ NOTE: starting with 2.4.2-ac18 the NMI-o you have to enable it with a boot time parameter. Prior to 2.4.2-ac18 the NMI-oopser is enabled unconditionally on x86 SMP boxes. +On x86-64 the NMI oopser is on by default. On 64bit Intel CPUs +it uses IO-APIC by default and on AMD it uses local APIC. + [ feel free to send bug reports, suggestions and patches to Ingo Molnar or the Linux SMP mailing list at ] _