From owner-freebsd-stable  Thu Jul  4  3:18:10 2002
Delivered-To: freebsd-stable@freebsd.org
Received: from mx1.FreeBSD.org (mx1.FreeBSD.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP
	id F0C1837B400; Thu,  4 Jul 2002 03:18:06 -0700 (PDT)
Received: from grosbein.pp.ru (www2.svzserv.kemerovo.su [213.184.65.86])
	by mx1.FreeBSD.org (Postfix) with ESMTP
	id A5F6743E3B; Thu,  4 Jul 2002 03:18:04 -0700 (PDT)
	(envelope-from eu@grosbein.pp.ru)
Received: from grosbein.pp.ru (smmsp@localhost [127.0.0.1])
	by grosbein.pp.ru (8.12.5/8.12.2) with ESMTP id g64AH8L5017186;
	Thu, 4 Jul 2002 18:17:08 +0800 (KRAST)
	(envelope-from eu@grosbein.pp.ru)
Received: (from root@localhost)
	by grosbein.pp.ru (8.12.5/8.12.3/Submit) id g64AGhEF017182;
	Thu, 4 Jul 2002 18:16:43 +0800 (KRAST)
Date: Thu, 4 Jul 2002 18:16:43 +0800 (KRAST)
Message-Id: <200207041016.g64AGhEF017182@grosbein.pp.ru>
To: FreeBSD-gnats-submit@freebsd.org
Subject: /bin/sh with builtin 'test' has memory leaks
From: Eugene Grosbein <eu@grosbein.pp.ru>
Reply-To: Eugene Grosbein <eu@grosbein.pp.ru>
Cc: stable@freebsd.org
X-send-pr-version: 3.113
X-GNATS-Notify: 
Sender: owner-freebsd-stable@FreeBSD.ORG
Precedence: bulk
List-ID: <freebsd-stable.FreeBSD.ORG>
List-Archive: <http://docs.freebsd.org/mail/> (Web Archive)
List-Help: <mailto:majordomo@FreeBSD.ORG?subject=help> (List Instructions)
List-Subscribe: <mailto:majordomo@FreeBSD.ORG?subject=subscribe%20freebsd-stable>
List-Unsubscribe: <mailto:majordomo@FreeBSD.ORG?subject=unsubscribe%20freebsd-stable>
X-Loop: FreeBSD.ORG


>Submitter-Id:	current-users
>Originator:	Eugene Grosbein
>Organization:	Svyaz Service JSC
>Confidential:	no 
>Synopsis:	/bin/sh with builtin 'test' has memory leaks
>Severity:	serious
>Priority:	low
>Category:	bin
>Class:		sw-bug
>Release:	FreeBSD 4.6-STABLE i386
>Environment:
System: All releases with test built in /bin/sh

>Description:
	There seem to be memory leak in 'test' command that was not
	a problem when it was external command but it became a problem
	when 'test' was made builtin.

>How-To-Repeat:

	1. Make test.sh:

	#!/bin/sh

	while :
	do
	  [ 1=1 ]
	done

	2. run top in one session and 'nice ./test.sh' in another,
	see how quickly it leaks.

>Fix:

	Unknown for me. There are workarounds, though:

	1. alias test=/bin/test; alias [=/bin/[
	This will force using standalone versions of test and
	attenuate the problem.
	2. Rebuild /bin/sh without test as builtin.
	That's enough to delete last line from /usr/src/bin/sh/builtins.def

To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-stable" in the body of the message