Re: [PATCH v3] x86/power: Fix 'nosmt' vs. hibernation triple fault during resume

[Jiri Kosina]

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: stable@xxxxxxxxxxxxxxx # v4.19+
> > Debugged-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
> > Fixes: 0cc3cd21657b ("cpu/hotplug: Boot HT siblings at least once")
> > Signed-off-by: Jiri Kosina <jkosina@xxxxxxx>
> 
> Acked-by: Pavel Machek <pavel@xxxxxx>
> 
> 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