From owner-freebsd-geom@FreeBSD.ORG  Sun Jan 25 15:47:56 2004
Return-Path: <owner-freebsd-geom@FreeBSD.ORG>
Delivered-To: freebsd-geom@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id C62E416A4CE
	for <freebsd-geom@freebsd.org>; Sun, 25 Jan 2004 15:47:56 -0800 (PST)
Received: from milla.ask33.net (milla.ask33.net [217.197.166.60])
	by mx1.FreeBSD.org (Postfix) with ESMTP id A465143D1F
	for <freebsd-geom@freebsd.org>; Sun, 25 Jan 2004 15:47:55 -0800 (PST)
	(envelope-from nick@milla.ask33.net)
Received: by milla.ask33.net (Postfix, from userid 1001)
	id 70D1D3ABB53; Mon, 26 Jan 2004 00:48:48 +0100 (CET)
Date: Mon, 26 Jan 2004 00:48:48 +0100
From: Pawel Jakub Dawidek <nick@garage.freebsd.pl>
To: freebsd-geom@freebsd.org
Message-ID: <20040125234848.GH565@garage.freebsd.pl>
Mime-Version: 1.0
Content-Type: multipart/signed; micalg=pgp-md5;
	protocol="application/pgp-signature"; boundary="doKZ0ri6bHmN2Q5y"
Content-Disposition: inline
X-PGP-Key-URL: http://garage.freebsd.pl/jules.asc
X-OS: FreeBSD 4.8-RELEASE-p13 i386
X-URL: http://garage.freebsd.pl
User-Agent: Mutt/1.5.1i
Subject: Preventing deadlocks on the event queue.
X-BeenThere: freebsd-geom@freebsd.org
X-Mailman-Version: 2.1.1
Precedence: list
List-Id: GEOM-specific discussions and implementations
	<freebsd-geom.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-geom>,
	<mailto:freebsd-geom-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-geom>
List-Post: <mailto:freebsd-geom@freebsd.org>
List-Help: <mailto:freebsd-geom-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-geom>,
	<mailto:freebsd-geom-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Sun, 25 Jan 2004 23:47:56 -0000


--doKZ0ri6bHmN2Q5y
Content-Type: text/plain; charset=iso-8859-2
Content-Disposition: inline
Content-Transfer-Encoding: quoted-printable

Hello.

So, I think I've found clever way to prevents deadlock caused by
calling g_waitfor_event() from an event.

My idea is to check if curthread in g_waitfor_event() is a g_event thread.

	http://garage.freebsd.pl/patches/geom_event_deadlock.patch

--=20
Pawel Jakub Dawidek                       pawel@dawidek.net
UNIX Systems Programmer/Administrator     http://garage.freebsd.pl
Am I Evil? Yes, I Am!                     http://cerber.sourceforge.net

--doKZ0ri6bHmN2Q5y
Content-Type: application/pgp-signature
Content-Disposition: inline

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.0.7 (FreeBSD)

iQCVAwUBQBRV4D/PhmMH/Mf1AQEPCwQAmNn8FXRrIyT1HtCOpwQdz28i4MTGCKIN
FLDR7YzEAiqYa9SMBpsmqbUL9N8RYtES0SzkhyEfVdAgCtYF1Ij8fwCqxLhJ4PGJ
dOgf7EjWZalgQpHcwXVaQ2F6fcs6jFRpLsQrK6qZCJMh+dBEiQAWjEK2E7dsUaPq
aLgwq1le3F8=
=y0S+
-----END PGP SIGNATURE-----

--doKZ0ri6bHmN2Q5y--