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NMI watchdog on Athlon CPUs?

To: kdb@xxxxxxxxxxx
Subject: NMI watchdog on Athlon CPUs?
From: Steven Walter <srwalter@xxxxxxxxx>
Date: Mon, 30 Jul 2001 16:34:01 -0500
Cc: kaos@xxxxxxxxxx
Sender: owner-kdb@xxxxxxxxxxx
User-agent: Mutt/1.2.5i
Today I applied the kdb-v1.8-2.4.7 patch to kernel 2.4.7, hoping to get
the kernel debugger and NMI watchdog working.  The kernel debugger seems
to work fine, however I have run ito some trouble with the NMI watchdog.

On boot, the kernel does find and re-enable the APIC on my AMD
Thunderbird CPU.  However, when I go to enable the nmi watchdog (echo
"1" > /proc/sys/kernel/nmi_watchdog), I get the following message:

"set_nmi_watchdog failed -5, value not changed"

Is this a known problem?  Has anyone besides myself experienced it?
Perhaps there's a technical reason why NMI watchdog can't be implement
on a Thunderbird.  A cursory glance through the archives didn't show
anything similar, so I thought I'd bring this to your collective
attentions.

Please cc: me on replies
-- 
-Steven
In a time of universal deceit, telling the truth is a revolutionary act.
                        -- George Orwell

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