linux-kernel - Re: [PATCH] x86: Put trampoline

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Date:	Sat, 5 Dec 2009 10:47:00 +0600
From:	Rakib Mullick <rakib.mullick@...il.com>
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	Ingo Molnar <mingo@...e.hu>, Thomas Gleixner <tglx@...utronix.de>,
	LKML <linux-kernel@...r.kernel.org>, x86@...nel.org,
	"Cihula, Joseph" <joseph.cihula@...el.com>,
	Shane Wang <shane.wang@...el.com>
Subject: Re: [PATCH] x86: Put trampoline_data into readonly section.

On 12/5/09, H. Peter Anvin <hpa@...or.com> wrote:
> On 12/04/2009 08:24 AM, Rakib Mullick wrote:
>
>  Perhaps the better thing would be to define trampoline_size as an
>  absolute symbol in arch/x86/kernel/trampoline_*.S, especially since it
>  probably generates bad code to subtract two global symbols like that.
>
But - trampoline_data is placed into - cpu init readonly data section.
And we are
referencing it from non-cpuinit function. ....... so I think the
problem remains.
Isn't it ? Or am I missing anything?

Rakib
>
>         -hpa
>
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