[V4 PATCH 1/4] panic/x86: Fix re-entrance problem due to panic on NMI

[河合英宏 / KAWAI，HIDEHIRO]

> On Fri, Sep 25, 2015 at 12:13:55PM +0000, 河合英宏 / KAWAI，HIDEHIRO wrote:
> > Peter saids -tip tree doesn't have panic_on_unrecovered_nmi in the
> > previoius discussion, but it still exists.  So, I didn't change
> > anything about panic_on_unrecovered_nmi.
> >
> 
> > > --- 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");
> > >
> 
> I was looking at unregister_nmi_handler() because that's the function
> the diff points to. That still doesn't have panic_on_unrecovered_nmi.
> 
> It looks like your diff tool is 'broken' and generates nonsense function
> data.

I had noticed the function name is wrong, but I didn't know how
do I fix that, sorry.  Now, I updated git to the latest version
and the issue disappeared.

Regards,

Hidehiro Kawai
Hitachi, Ltd. Research & Development Group