From owner-freebsd-current@FreeBSD.ORG  Mon Jul 12 02:40:46 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 BA61A16A4CE; Mon, 12 Jul 2004 02:40:46 +0000 (GMT)
Received: from ylpvm43.prodigy.net (ylpvm43-ext.prodigy.net [207.115.57.74])
	by mx1.FreeBSD.org (Postfix) with ESMTP
	id 7B73543D45; Mon, 12 Jul 2004 02:40:46 +0000 (GMT)
	(envelope-from kris@obsecurity.org)
Received: from obsecurity.dyndns.org
	(adsl-64-169-107-19.dsl.lsan03.pacbell.net [64.169.107.19])
	i6C2emu0028589;	Sun, 11 Jul 2004 22:40:48 -0400
Received: by obsecurity.dyndns.org (Postfix, from userid 1000)
	id 2021352B43; Sun, 11 Jul 2004 19:40:45 -0700 (PDT)
Date: Sun, 11 Jul 2004 19:40:45 -0700
From: Kris Kennaway <kris@obsecurity.org>
To: current@freeBSD.org, jhb@freeBSD.org
Message-ID: <20040712024044.GA24706@xor.obsecurity.org>
Mime-Version: 1.0
Content-Type: multipart/signed; micalg=pgp-sha1;
	protocol="application/pgp-signature"; boundary="G4iJoqBmSsgzjUCe"
Content-Disposition: inline
User-Agent: Mutt/1.4.2.1i
Subject: page fault/panic: mi_switch: switch in a critical section
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: Mon, 12 Jul 2004 02:40:46 -0000


--G4iJoqBmSsgzjUCe
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline

panic: page fault
panic messages:
---
Fatal trap 12: page fault while in kernel mode
fault virtual address   = 0x104
fault code              = supervisor read, page not present
instruction pointer     = 0x8:0xc058a8cf
stack pointer           = 0x10:0xdcb34cc4
frame pointer           = 0x10:0xdcb34cec
code segment            = base 0x0, limit 0xfffff, type 0x1b
                        = DPL 0, pres 1, def32 1, gran 1
processor eflags        = resume, IOPL = 0
current process         = 50 (schedcpu)
trap number             = 12
panic: page fault

syncing disks, buffers remaining... panic: mi_switch: switch in a critical section

addr2line says the panic was in kern/sched_4bsd.c:327

                                /*
                                 * The kse slptimes are not touched in wakeup
                                 * because the thread may not HAVE a KSE.
                                 */
                                if (ke->ke_state == KES_ONRUNQ) {
                                        awake = 1;
                                        ke->ke_flags &= ~KEF_DIDRUN;
--->                            } else if ((ke->ke_state == KES_THREAD) &&
                                    (TD_IS_RUNNING(ke->ke_thread))) {
                                        awake = 1;

gdb -k got confused and couldn't make anything out of the backtrace.

Kris

--G4iJoqBmSsgzjUCe
Content-Type: application/pgp-signature
Content-Disposition: inline

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.2.4 (FreeBSD)

iD8DBQFA8fosWry0BWjoQKURAjWjAJ0dwyPF5i8Qkh5qZhBvLQws7ZZGlwCeOdoW
7fbLO9HLg01wjpCTpbCd5o4=
=a+JI
-----END PGP SIGNATURE-----

--G4iJoqBmSsgzjUCe--