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Date: Wed, 25 Jun 2003 04:07:45 +0400
From: Andrey Chernov <ache@nagual.pp.ru>
To: Juli Mallett <jmallett@FreeBSD.ORG>
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	<20030624234501.GA51779@nagual.pp.ru> <20030624185411.A43877@FreeBSD.org>
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cc: current@FreeBSD.ORG
Subject: Re: tcsh being dodgy, or pipe code ishoos?
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On Tue, Jun 24, 2003 at 18:54:11 -0500, Juli Mallett wrote:

> stdout.  Where does stderr come into it?  Yes I know about TTY races

Forget about stderr, it looks like fork race somewhere. Minimal example 
will be

( ( echo 2 ; echo 3 ) | xargs -I% echo + % )

which outputs

+ + 3
2

in rare cases. Note that 

( echo 2 ; echo 3 ) | xargs -I% echo + %

never pruduce this bug, so no pipes involved, just ()