* nmi_watchdog NMI count zero on a AMD K6-3
@ 2002-12-31 6:56 Michael
0 siblings, 0 replies; 2+ messages in thread
From: Michael @ 2002-12-31 6:56 UTC (permalink / raw)
To: linux-kernel
With both nmi_watchdog=1/2 I get NMI: 0 in /proc/interrupts with a AMD K6-3
Thanks.
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: nmi_watchdog NMI count zero on a AMD K6-3
@ 2002-12-31 13:05 Mikael Pettersson
0 siblings, 0 replies; 2+ messages in thread
From: Mikael Pettersson @ 2002-12-31 13:05 UTC (permalink / raw)
To: linux-kernel, soppscum
On Tue, 31 Dec 2002 07:56:45 +0100 (MET), "Michael <soppscum@online.no>" wrote:
>With both nmi_watchdog=1/2 I get NMI: 0 in /proc/interrupts with a AMD K6-3
nmi_watchdog=2 will never do anything on a K6 since the K6s lack the
on-CPU local APIC and performance counter features needed for this mode.
nmi_watchdog=1 needs an I/O APIC and (for K6) an external local APIC.
That configuration is very unusual (it was used for pre-Pentium
multiprocessor systems).
Your machine is behaving as expected. If you need NMI watchdog support
you'll have to find or add some other programmable NMI source.
/Mikael
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