linux-kernel - Why set ORIG_EAX(%esp) to -1 in arch/i386/kernel/entry.S:error

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Message-ID: <44F48F7D.4050908@goop.org>
Date:	Tue, 29 Aug 2006 12:03:25 -0700
From:	Jeremy Fitzhardinge <jeremy@...p.org>
To:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Andi Kleen <ak@...e.de>, Zachary Amsden <zach@...are.com>,
	Linus Torvalds <torvalds@...l.org>,
	Chuck Ebbert <76306.1226@...puserve.com>
Subject: Why set ORIG_EAX(%esp) to -1 in arch/i386/kernel/entry.S:error_code?

There doesn't seem much point; nothing seems to use it on the 
trap-handling paths.  Is it a historical left-over?

    J

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