[Skiboot] [PATCH] hw/slw.c: Offline code still uses p8 bits

Balbir Singh bsingharora at gmail.com
Fri Sep 15 15:04:02 AEST 2017

On Fri, Sep 15, 2017 at 2:58 PM, Vaidyanathan Srinivasan
<svaidy at linux.vnet.ibm.com> wrote:
> * Balbir Singh <bsingharora at gmail.com> [2017-09-15 14:42:39]:
>> I'm seeing an infinite loop while hot unplugging
>> a CPU. This is a workaround till we do the right
>> things for p9. May be a candidate for backporting
>> The messages I see in an infinite loop are:
>> [  740.250192896,3] LIBPORE: Core ID = 20 is not within valid range of [0;15]
>> [  740.250230176,3] SLW: Failed to set spr for CPU 51
>> When trying to hotunplug core id 20. For now the
>> patch just skips calling p8_pore* on p9 machines.
> STOP-API support in OPAL is provided by this patch set.
> https://lists.ozlabs.org/pipermail/skiboot/2017-August/008700.html
> [Skiboot] [PATCH v3 0/7] Enable stop4 idle state
> We had a change to push to CCAN and that is resolved now.

Thanks, whats CCAN?

OK.. I'd still rather backport this to earlier revisions upto when p9
is supported or do you expect the new ones to be backported?

Balbir Singh.

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