Re: [PATCH v4] xen: avoid crash in disable_hotplug_cpu

From: Olaf Hering
Date: Tue Sep 11 2018 - 03:53:11 EST


Am Fri, 7 Sep 2018 12:56:37 -0400
schrieb Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>:

> I was hoping you'd respond to my question about warning.

It looks like CONFIG_BOOTPARAM_HOTPLUG_CPU0=y is the reason for the warning.
As JÃrgen suggested in another mail, Xen should probably disable hotplugging
for cpu#0 in the generic setup code. Then cpu_is_hotpluggable(cpu) would
do the right thing.

Do you want me to merge that extra change into this patch?

Olaf

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