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Date: Tue, 21 May 2013 15:12:53 +0800
From: Tang Chen <tangchen@cn.fujitsu.com>
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To: Pekka Enberg <penberg@kernel.org>
CC: Yinghai Lu <yinghai@kernel.org>, Thomas Gleixner <tglx@linutronix.de>,
        Ingo Molnar <mingo@redhat.com>, "H. Peter Anvin" <hpa@zytor.com>,
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        Andrew Morton <akpm@linux-foundation.org>,
        Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>,
        x86 maintainers <x86@kernel.org>, LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 1/1] numa, mm, memory-hotplug: Do not allocate pagetable
 to local node with MEMORY_HOTREMOVE enabled.
References: <1368705021-24396-1-git-send-email-tangchen@cn.fujitsu.com> <CAOJsxLEhSM1foG=fUcGyz1rvfPPirh4jW+dZuhO6ap5oKFk5ug@mail.gmail.com>
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Hi

On 05/21/2013 03:02 PM, Pekka Enberg wrote:
......
>
> Ugh. Special-casing for CONFIG_MEMORY_HOTPLUG is just begging for
> trouble. Were you able to determine which commit broke memory
> hot-remove?

Please refer to the following patch-set.
https://lkml.org/lkml/2013/4/11/829

patch21 and patch22 will allocate pagetable to local, which may cause
memory hot-remove fail.

But this patch-set is not in the mainline now.

Thanks. :)


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