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Re: [PATCH] s390/sclp: improve special wait psw logic
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From: |
Cornelia Huck |
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Subject: |
Re: [PATCH] s390/sclp: improve special wait psw logic |
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Date: |
Thu, 20 Feb 2020 17:27:28 +0100 |
On Thu, 20 Feb 2020 14:35:01 +0100
Christian Borntraeger <address@hidden> wrote:
> On 20.02.20 14:26, David Hildenbrand wrote:
> > On 20.02.20 14:16, Christian Borntraeger wrote:
> >> There is a special quiesce PSW that we check for "shutdown". Otherwise
> >> disabled
> >> wait is detected as "crashed". Architecturally we must only check PSW bits
> >> 116-127. Fix this.
> >>
> >> Cc: address@hidden
> >
> > Is this really stable material?
>
> Guests that end with lets say 0xaafffUL would be considered "crashed" instead
> of "shutdown".
> I will let Conny decide.
It cannot really hurt; but would be interesting if you have seen that
in the wild.
> >
> > Reviewed-by: David Hildenbrand <address@hidden>
> >
>