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Date: Tue, 5 Feb 2013 13:24:32 +0100
From: Ingo Molnar <mingo@kernel.org>
To: Yinghai Lu <yinghai@kernel.org>
Cc: Ingo Molnar <mingo@elte.hu>, Thomas Gleixner <tglx@linutronix.de>,
        "H. Peter Anvin" <hpa@zytor.com>, linux-kernel@vger.kernel.org,
        Stoney Wang <song-bo.wang@hp.com>, stable@kernel.org
Subject: Re: [PATCH] x86, apic: Check fadt x2apic phys in x2apic_phys_probe()
Message-ID: <20130205122432.GE21455@gmail.com>
References: <20130204110304.GD24173@gmail.com>
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* Yinghai Lu <yinghai@kernel.org> wrote:

> From: Stoney Wang <song-bo.wang@hp.com>
> 
> When HP ProLiant DL980 G7 Server boot without x2apic_phys, there will be
> intermittent lost interrupts and could result in a hang or data loss.

What does 'boot without x2apic_phys' mean?

Does it mean x2apic_phys=0 boot command line? Or, because 
x2apic_phys is off by default, does it simply mean that if it's 
booted with a default kernel, without any workaround specified 
on the boot command line?

Thanks,

	Ingo