From mboxrd@z Thu Jan  1 00:00:00 1970
Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43)
	id 1Kh2tO-00082q-Fd
	for qemu-devel@nongnu.org; Sat, 20 Sep 2008 09:52:58 -0400
Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43)
	id 1Kh2tM-00080j-PU
	for qemu-devel@nongnu.org; Sat, 20 Sep 2008 09:52:58 -0400
Received: from [199.232.76.173] (port=53628 helo=monty-python.gnu.org)
	by lists.gnu.org with esmtp (Exim 4.43) id 1Kh2tM-00080Z-GY
	for qemu-devel@nongnu.org; Sat, 20 Sep 2008 09:52:56 -0400
Received: from rv-out-0708.google.com ([209.85.198.242]:45374)
	by monty-python.gnu.org with esmtp (Exim 4.60)
	(envelope-from <balrogg@gmail.com>) id 1Kh2tM-0006se-Aa
	for qemu-devel@nongnu.org; Sat, 20 Sep 2008 09:52:56 -0400
Received: by rv-out-0708.google.com with SMTP id f25so729825rvb.22
	for <qemu-devel@nongnu.org>; Sat, 20 Sep 2008 06:52:55 -0700 (PDT)
Message-ID: <fb249edb0809200652t3da3c7c5x66838cbadc3d5563@mail.gmail.com>
Date: Sat, 20 Sep 2008 15:52:55 +0200
From: "andrzej zaborowski" <balrogg@gmail.com>
Subject: Re: [Qemu-devel] [PATCH] Fix vfork() syscall emulation
In-Reply-To: <20080920131134.GA26850@localhost.localdomain>
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 7bit
Content-Disposition: inline
References: <1221750426-14863-1-git-send-email-kirill@shutemov.name>
	<fb249edb0809191956i7c4132fdo1338d04a6d9bc35d@mail.gmail.com>
	<20080920064556.GA24679@localhost.localdomain>
	<fb249edb0809200545x517a6489wbcd234d0b8acd796@mail.gmail.com>
	<20080920131134.GA26850@localhost.localdomain>
Reply-To: qemu-devel@nongnu.org
List-Id: qemu-devel.nongnu.org
List-Unsubscribe: <http://lists.nongnu.org/mailman/listinfo/qemu-devel>,
	<mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>
List-Archive: <http://lists.gnu.org/pipermail/qemu-devel>
List-Post: <mailto:qemu-devel@nongnu.org>
List-Help: <mailto:qemu-devel-request@nongnu.org?subject=help>
List-Subscribe: <http://lists.nongnu.org/mailman/listinfo/qemu-devel>,
	<mailto:qemu-devel-request@nongnu.org?subject=subscribe>
To: "Kirill A. Shutemov" <kirill@shutemov.name>
Cc: qemu-devel@nongnu.org, Paul Brook <paul@codesourcery.com>

2008/9/20 Kirill A. Shutemov <kirill@shutemov.name>:
> So, implementation vfork() using pthread is wrong.

Agreed, but implementation of vfork() using fork() is wrong, too. If
we allow a hack, it should be commented, the second thing that needs
to be commented is why the value of CLONE_VM flag is ignored if
CLONE_VFORK is set -- on Linux it's not ignored.

Cheers