linux-kernel - Re: [x86] Build error at arch/x86/boot/bioscall.S

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Message-ID: <4A37B725.8070203@zytor.com>
Date:	Tue, 16 Jun 2009 08:15:49 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Amerigo Wang <xiyou.wangcong@...il.com>
CC:	Tetsuo Handa <penguin-kernel@...ove.sakura.ne.jp>,
	linux-kernel@...r.kernel.org
Subject: Re: [x86] Build error at arch/x86/boot/bioscall.S

Amerigo Wang wrote:
> 
> Ok, how about:
> 
> - movw 68(%esp), %di
> + addl $68, %esp
> + popw %di
> + subl $66, %esp
> 

This will destroy the stack if an untimely interrupt shows up.

	-hpa

-- 
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel.  I don't speak on their behalf.

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