linux-kernel - Re: [PATCH] fix x86-32 early fixmap initialization.

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Message-ID: <86802c440712011824v4fdac3c4pfaf2f4d5ce93fe18@mail.gmail.com>
Date:	Sat, 1 Dec 2007 18:24:55 -0800
From:	"Yinghai Lu" <yhlu.kernel@...il.com>
To:	"Eric W. Biederman" <ebiederm@...ssion.com>
Cc:	"H. Peter Anvin" <hpa@...or.com>,
	"Thomas Gleixner" <tglx@...utronix.de>,
	"Ingo Molnar" <mingo@...hat.com>, linux-kernel@...r.kernel.org,
	pageexec@...email.hu
Subject: Re: [PATCH] fix x86-32 early fixmap initialization.

On Dec 1, 2007 5:34 PM, Eric W. Biederman <ebiederm@...ssion.com> wrote:
>
> pageexec@...email.hu writes:
>
> > hello,
> >
> > i've just noticed that the chunk in i386/kernel/head.S ended up in a
> > weird place, namely, it's not going to be executed as it's just after
> > a 'jmp 3f' and before startup_32_smp, probably not what you intended.
> > on a sidenote, the whole thing can be done in a single insn, like:
> >
> > movl $(swapper_pg_pmd - __PAGE_OFFSET + 0x067), (swapper_pg_dir -
> > __PAGE_OFFSET+ 4092)
> >
> > PS: your email address ebiderman@...sson.com in the commit seems to
> > be wrong as well.
>
> Yes.  YH refresh one of my old patches and apparently got my email
> address wrong.
>
> Thanks for the reminder I thought we had fixed this problem a while ago.

i sent fix to andrew and andi. but it seems they missed it.

BTW: how about your head32.c patch series.

YH
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