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Subject: Re: NMI for ARC
To: Andy Lutomirski <luto@amacapital.net>,
        Peter Zijlstra <peterz@infradead.org>
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Cc: Alexey Brodkin <Alexey.Brodkin@synopsys.com>,
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        Vineet Gupta <Vineet.Gupta1@synopsys.com>,
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From: Vineet Gupta <vgupta@synopsys.com>
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Date: Wed, 28 Sep 2016 18:20:29 -0700
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On 09/28/2016 03:26 PM, Andy Lutomirski wrote:
>> Right, so what I think Vineet is asking is if we need to disable NMIs as
>> > well, we cannot on x86 disable NMIs so no.
>> >
> The same argument works here, too: an NMI won't set TIF_NEED_RESCHED
> without sending an IPI, so we can't miss a wakeup.

But what exact wakeup miss are we taking about here. If intr were NOT disabled,
how could this happen. Just trying to understand the need for "irqs-disabled" in
resume_{user,kernel}_*

The intr disabled before reg file restore makes complete sense though.