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Date: Mon, 10 Mar 2008 15:19:21 -0400
From: Chuck Ebbert <cebbert@redhat.com>
Organization: Red Hat
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To: Roland McGrath <roland@redhat.com>
CC: Andrew Morton <akpm@linux-foundation.org>,
       Linus Torvalds <torvalds@linux-foundation.org>,
       Ingo Molnar <mingo@elte.hu>, Thomas Gleixner <tglx@linutronix.de>,
       linux-kernel@vger.kernel.org
Subject: Re: [PATCH] x86_64 ptrace orig_ax on ia32 task
References: <20080229035707.EAE862700FD@magilla.localdomain> <20080307225602.6491B26F990@magilla.localdomain>
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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.