linux-kernel - Re: [PATCH -v2 6/7] x86, NMI, Add support to notify hardware error with unknown NMI

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Date:	Tue, 28 Sep 2010 09:54:21 +0800
From:	Huang Ying <ying.huang@...el.com>
To:	Don Zickus <dzickus@...hat.com>
Cc:	Ingo Molnar <mingo@...e.hu>, "H. Peter Anvin" <hpa@...or.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Andi Kleen <andi@...stfloor.org>
Subject: Re: [PATCH -v2 6/7] x86, NMI, Add support to notify hardware error
 with unknown NMI

On Mon, 2010-09-27 at 23:38 +0800, Don Zickus wrote:
> Hi Huang,
> 
> On Mon, Sep 27, 2010 at 08:57:05AM +0800, Huang Ying wrote:
> > @@ -360,6 +362,14 @@ io_check_error(unsigned char reason, str
> >  static notrace __kprobes void
> >  unknown_nmi_error(unsigned char reason, struct pt_regs *regs)
> >  {
> > +	/*
> > +	 * On some platforms, hardware errors may be notified via
> > +	 * unknown NMI
> > +	 */
> > +	if (unknown_nmi_for_hwerr)
> > +		panic("NMI for hardware error without error record: "
> > +		      "Not continuing");
> 
> Can you modify this to let users know to check the BIOS/BMC for further
> messages?  Otherwise people just file bugzillas asking what the problem
> is, and the first thing we have to respond with is check the BIOS/BMC.

Sorry, forget about that. Will change it in next version.

Best Regards,
Huang Ying


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