linux-kernel - Re: [PATCH] x86, mm: fix boot hang regression

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Message-ID: <CAE9FiQXr4S0P5P5JdegRyozSX4OCJ6+6MMybmAaMPCzfqe6yWg@mail.gmail.com>
Date:	Tue, 28 May 2013 16:27:07 -0700
From:	Yinghai Lu <yinghai@...nel.org>
To:	Yuanhan Liu <yuanhan.liu@...ux.intel.com>
Cc:	"H. Peter Anvin" <hpa@...or.com>, lkp@...ux.intel.com,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	"the arch/x86 maintainers" <x86@...nel.org>
Subject: Re: [PATCH] x86, mm: fix boot hang regression

On Sat, May 25, 2013 at 3:25 AM, Yuanhan Liu
<yuanhan.liu@...ux.intel.com> wrote:

> Firstly, your patch works and feel free to add:
>         Tested-by: Yuanhan Liu <yuanhan.liu@...ux.intel.com>

ok, will resend it in complete form.

>
> While, your patch fixes this issue on source side. I thought that
> before, too.  But I think it's better to fix it on root side.
> That's why I sent a patch to try to fix it at mapping stage; Meanwhile,
> I was trying to sent another patch to fix this issue on source
> side later. And you did that.
>
> On the other hand, since we support splitting PUD(and PMD), I guess we
> should make it do the right work just in case will meet such case later.

No, we should not split them.

Thanks

Yinghai
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