On 1/5/20 12:33 PM, Juergen Gross wrote:
> When resuming from S3 and smt=0 or maxcpus= are specified we must not
> do anything in cpu_schedule_callback(). This is not true today for
> taking down a cpu during resume.
>
> If anything goes wrong during resume all the scheduler related error
> handling is in cpupool.c, so we can just bail out early from
> cpu_schedule_callback() when suspending or resuming.
>
> This fixes commit 0763cd2687897b55e7 ("xen/sched: don't disable
> scheduler on cpus during suspend").
>
> Reported-by: Marek Marczykowski-Górecki <marma...@invisiblethingslab.com>
> Tested-by: Marek Marczykowski-Górecki <marma...@invisiblethingslab.com>
> Signed-off-by: Juergen Gross <jgr...@suse.com>
Acked-by: George Dunlap <george.dun...@citrix.com>
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