[V3 PATCH 1/4] panic/x86: Fix re-entrance problem due to panic on NMI

[河合英宏 / KAWAI，HIDEHIRO]

> From: Peter Zijlstra [mailto:peterz at infradead.org]
> 
> On Thu, Aug 06, 2015 at 02:45:43PM +0900, Hidehiro Kawai wrote:
> > diff --git a/arch/x86/kernel/nmi.c b/arch/x86/kernel/nmi.c
> > index d05bd2e..dcd4038 100644
> > --- a/arch/x86/kernel/nmi.c
> > +++ b/arch/x86/kernel/nmi.c
> > @@ -231,7 +231,7 @@ void unregister_nmi_handler(unsigned int type, const char *name)
> >  #endif
> >
> >  	if (panic_on_unrecovered_nmi)
> > -		panic("NMI: Not continuing");
> > +		nmi_panic("NMI: Not continuing");
> >
> >  	pr_emerg("Dazed and confused, but trying to continue\n");
> >
> 
> What tree is this again.. my tree (-tip) doesn't have
> panic_on_unrecovered_nmi nonsense.

I created this patch set on top of the v4.2-rc5, but this is
mostly related to x86 and should be based on -tip tree.
I'll do rebase in the next version.

Regards,

Hidehiro Kawai
Hitachi, Ltd. Research & Development Group