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

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Message-ID: <20100927153804.GC26290@redhat.com>
Date:	Mon, 27 Sep 2010 11:38:04 -0400
From:	Don Zickus <dzickus@...hat.com>
To:	Huang Ying <ying.huang@...el.com>
Cc:	Ingo Molnar <mingo@...e.hu>, "H. Peter Anvin" <hpa@...or.com>,
	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

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.

Cheers,
Don
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