Re: [GIT pull] smp/hotplug: Removal of notifiers

[Markus Trippelsdorf]

On 2016.12.26 at 08:45 +0100, Markus Trippelsdorf wrote:
> On 2016.12.25 at 14:39 +0100, Thomas Gleixner wrote:
> > Linus,
> > 
> > please pull the latest smp-urgent-for-linus git tree from:
> > 
> >    git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git smp-urgent-for-linus
> > 
> > Thomas Gleixner (11):
> >       cpu/hotplug: Prevent overwriting of callbacks
> 
> The following commit:
> 
>  commit dc280d93623927570da279e99393879dbbab39e7
>  Author: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
>  Date:   Wed Dec 21 20:19:49 2016 +0100
> 
>      cpu/hotplug: Prevent overwriting of callbacks
> 
> results in an early OOPs during boot on my AMD machine.
> I haven't wrote down the entire backtrace, but basically things start to
> go wrong in mce_threshold_create_device() from
> arch/x86/kernel/cpu/mcheck/mce_amd.c.
> 
> # CONFIG_HOTPLUG_CPU is not set 
> 
> Reverting the commit "fixes" the issue for me.

CCing Sebastian and Borislav.

-- 
Markus