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SubjectRe: NMI watchdog setup_lapic_nmi_watchdog() problem

On Wed, Oct 8, 2008 at 1:45 AM, Andi Kleen <> wrote:
>> If you remove the 'cheap hack', disabling/enabling works. That's why
>> I'd like to better
>> understand was is going on with suspend/resume.
> The hack was done because there wasn't an available CPU global enable flag
> for the nmi watchdog. So resume would possible reenable it unnecessarily
> If there was one it could just check that.
I am not sure what you mean by 'CPU global enable flag'.

Are you talking about a per-cpu variable or a truly global variable?

Isn't that what nmi_active is today?

As for per-cpu, there is wd_enabled.

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