linux-kernel - Re: [PATCH] x86_64 ptrace orig

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Message-ID: <47D589B9.1080109@redhat.com>
Date:	Mon, 10 Mar 2008 15:19:21 -0400
From:	Chuck Ebbert <cebbert@...hat.com>
To:	Roland McGrath <roland@...hat.com>
CC:	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Ingo Molnar <mingo@...e.hu>,
	Thomas Gleixner <tglx@...utronix.de>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] x86_64 ptrace orig_ax on ia32 task

On 03/07/2008 05:56 PM, Roland McGrath wrote:
> This makes 64-bit ptrace calls setting the 64-bit orig_ax field
> for a 32-bit task sign-extend the low 32 bits up to 64.  This
> matches what a 64-bit debugger expects when tracing a 32-bit task.
> 
> This follows on my "x86_64 ia32 syscall restart fix".
> This didn't matter until that was fixed.
> 

That original patch is still unmerged as of -rc5.

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