Re: [RFC] Fix NMI watchdog documentation

[Zwane Mwaikambo (zwane@linuxpower.ca)]

On Sat, 24 May 2003, Zwane Mwaikambo wrote:

> For nmi_watchdog=1 the NMI watchdog uses the programmable interval timer
> to trigger interrupt events via the IOAPIC. with nmi_watchdog=2 we use the 
> performance counters on the processor to trigger these events. IOAPICs 
> are generally found on SMP motherboards (but there are UP boards with 
> them, it's chipset dependent). Generally i686+ (save some Athlons and a 
> few other processors) will work with nmi_watchdog=2.

Forgot this bit;

w/ CONFIG_X86_LOCAL_APIC=y you only have nmi_watchdog=2

w/ CONFIG_X86_IO_APIC=y you have nmi_watchdog=1 and 2

w/ CONFIG_SMP you have nmi_watchdog=1 and 2 as it depends on 
CONFIG_X86_IO_APIC

	Zwane

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function.linuxpower.ca
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