On Wed, 29 May 2019, Pavel Machek wrote:
> > As explained in
> >
> > 0cc3cd21657b ("cpu/hotplug: Boot HT siblings at least once")
> >
> > we always, no matter what, have to bring up x86 HT siblings during boot at
> > least once in order to avoid first MCE bringing the system to its
> > knees.
>
>
> > Cc: sta...@vger.kernel.org # v4.19+
> > Debugged-by: Thomas Gleixner <t...@linutronix.de>
> > Fixes: 0cc3cd21657b ("cpu/hotplug: Boot HT siblings at least once")
> > Signed-off-by: Jiri Kosina <jkos...@suse.cz>
>
> Acked-by: Pavel Machek <pa...@ucw.cz>
>
> But I'm less sure if this is -stable material. Is reverting
> 0cc3cd21657be04cb0559fe8063f2130493f92cf in -stable an option?
Well, without that commit, first MCE to come kills nosmt system.
--
Jiri Kosina
SUSE Labs
