2021-11-23 04:02:48

by Muni Sekhar

[permalink] [raw]
Subject: x86, nmi: IOCK error

Hi all,

The following message is seen on the console "NMI: IOCK error (debug
interrupt?) for reason 60 on CPU 0.", what does it mean?

Does this likely confirm the CPU is faulty? If so, how to resolve this?

--
Thanks,
Sekhar


2021-11-23 05:14:35

by Jeffrey Walton

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Subject: Re: x86, nmi: IOCK error

On Mon, Nov 22, 2021 at 11:03 PM Muni Sekhar <[email protected]> wrote:
>
> The following message is seen on the console "NMI: IOCK error (debug
> interrupt?) for reason 60 on CPU 0.", what does it mean?

Red Hat has a good article on the subject at
https://access.redhat.com/solutions/42261.

Jeff

2021-11-23 05:33:02

by Muni Sekhar

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Subject: Re: x86, nmi: IOCK error

On Tue, Nov 23, 2021 at 10:44 AM Jeffrey Walton <[email protected]> wrote:
>
> On Mon, Nov 22, 2021 at 11:03 PM Muni Sekhar <[email protected]> wrote:
> >
> > The following message is seen on the console "NMI: IOCK error (debug
> > interrupt?) for reason 60 on CPU 0.", what does it mean?
>
> Red Hat has a good article on the subject at
> https://access.redhat.com/solutions/42261.
NMI: IOCK error (debug interrupt?) for reason 60 on CPU 0.
NMI: IOCK error (debug interrupt?) for reason 70 on CPU 0.
What's the difference between reason 60 & reason 70? I was not able to
find it in the above mentioned link.

>
> Jeff



--
Thanks,
Sekhar

2022-01-08 23:14:56

by Maciej W. Rozycki

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Subject: Re: x86, nmi: IOCK error

On Tue, 23 Nov 2021, Muni Sekhar wrote:

> > Red Hat has a good article on the subject at
> > https://access.redhat.com/solutions/42261.
> NMI: IOCK error (debug interrupt?) for reason 60 on CPU 0.
> NMI: IOCK error (debug interrupt?) for reason 70 on CPU 0.
> What's the difference between reason 60 & reason 70? I was not able to
> find it in the above mentioned link.

For any practical purpose the value of bit #4 in the NMI Status and
Control Register does not matter as (in a compatible system) it merely
toggles with every DRAM refresh cycle.

HTH,

Maciej