From owner-freebsd-current@FreeBSD.ORG  Thu Nov 25 23:17:44 2004
Return-Path: <owner-freebsd-current@FreeBSD.ORG>
Delivered-To: freebsd-current@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id DD2FB16A4CE
	for <current@FreeBSD.org>; Thu, 25 Nov 2004 23:17:44 +0000 (GMT)
Received: from obsecurity.dyndns.org
	(CPE0050040655c8-CM00111ae02aac.cpe.net.cable.rogers.com [69.194.102.143])
	by mx1.FreeBSD.org (Postfix) with ESMTP id B23F543D1F
	for <current@FreeBSD.org>; Thu, 25 Nov 2004 23:17:44 +0000 (GMT)
	(envelope-from kris@obsecurity.org)
Received: by obsecurity.dyndns.org (Postfix, from userid 1000)
	id DC2C1516D1; Thu, 25 Nov 2004 15:22:10 -0800 (PST)
Date: Thu, 25 Nov 2004 15:22:10 -0800
From: Kris Kennaway <kris@obsecurity.org>
To: current@FreeBSD.org
Message-ID: <20041125232210.GA88512@xor.obsecurity.org>
Mime-Version: 1.0
Content-Type: multipart/signed; micalg=pgp-sha1;
	protocol="application/pgp-signature"; boundary="8t9RHnE3ZwKMSgU+"
Content-Disposition: inline
User-Agent: Mutt/1.4.2.1i
Subject: Sleeping on "fdesc" with the following non-sleepable locks held:
X-BeenThere: freebsd-current@freebsd.org
X-Mailman-Version: 2.1.1
Precedence: list
List-Id: Discussions about the use of FreeBSD-current
	<freebsd-current.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>,
	<mailto:freebsd-current-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-current>
List-Post: <mailto:freebsd-current@freebsd.org>
List-Help: <mailto:freebsd-current-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>,
	<mailto:freebsd-current-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Thu, 25 Nov 2004 23:17:45 -0000


--8t9RHnE3ZwKMSgU+
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline

Found in 6.0 (with mpsafevm=1, if it matters)

Kris

Sleeping on "fdesc" with the following non-sleepable locks held:
exclusive sleep mutex fdesc r = 0 (0xc0740920) locked @ kern/vfs_mount.c:955
KDB: enter: witness_warn
[thread pid 79735 tid 100366 ]
Stopped at      kdb_enter+0x32: leave
db> tr
Tracing pid 79735 tid 100366 td 0xc8584900
kdb_enter(c06c48a8,f161bc28,1,1,0) at kdb_enter+0x32
witness_warn(2,c5bae928,c06e4bde,c06e0ca6,c076cbd0) at witness_warn+0x1bb
msleep(c5bae94c,c5bae928,64,c06e0ca6,0) at msleep+0x47
checkdirs(c59fa400,f161bca4,c8584900,c8584900,0) at checkdirs+0xe0
dounmount(c59fa400,8080000,c8584900,40d,602ff4f) at dounmount+0x3d6
unmount(c8584900,f161bd14,c06feff6,3ad,2) at unmount+0x1cc
syscall(2f,2f,2f,804a618,bfbfe759) at syscall+0x13b
Xint0x80_syscall() at Xint0x80_syscall+0x1f
--- syscall (22, FreeBSD ELF32, unmount), eip = 0x280c5a63, esp = 0xbfbfe4ec, ebp = 0xbfbfe5a8 ---


--8t9RHnE3ZwKMSgU+
Content-Type: application/pgp-signature
Content-Disposition: inline

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.2.6 (FreeBSD)

iD8DBQFBpmkiWry0BWjoQKURAhu2AKDCGns9dkfhpjqyDhzuqI+LPhsHgQCgibOG
mh07ftBiP9fh7Y8v0sK0Xcc=
=bzdO
-----END PGP SIGNATURE-----

--8t9RHnE3ZwKMSgU+--