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Message-ID: <86802c440706011246n795ecabfke0dfd1a695ba5e5f@mail.gmail.com>
Date: Fri, 1 Jun 2007 12:46:50 -0700
From: "Yinghai Lu" <yhlu.kernel@gmail.com>
To: "Eric W. Biederman" <ebiederm@xmission.com>
Subject: Re: [PATCH 2/3]i386: early init pgt for fix virtual addr in head.S
Cc: "Andi Kleen" <ak@suse.de>, "Andrew Morton" <akpm@linux-foundation.org>,
       "Greg KH" <gregkh@suse.de>, "Bjorn Helgaas" <bjorn.helgaas@hp.com>,
       "Vivek Goyal" <vgoyal@in.ibm.com>,
       "linux kernel mailing list" <linux-kernel@vger.kernel.org>
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On 6/1/07, Eric W. Biederman <ebiederm@xmission.com> wrote:
> "Yinghai Lu" <yhlu.kernel@gmail.com> writes:
>
> > early init pgt for fix virtual addr in head.S, so can use set_fixmap
> > before setup_arch.
> > otherwise set_fixmap_nocache will not work for i386
> >
> > Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
> > Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
>
> Hmm.  I'm wondering how my signed off by got on this one.
> Maybe I did this at some point.
>
> In any case this patch looks wrong (unless I'm completely mistaken)
> because it doesn't appear to handle PAE mode.
>
> Which is why I initialized the early page table in C, in my
> last round of patches on this subject.
>
> If we don't know the page table format doing this kind of
> thing is very difficult.

it is from post for your usb debug port patch. so you have updated one for i386?
and x86_64 is right?

YH