From owner-freebsd-current@FreeBSD.ORG Fri Aug 1 14:33:04 2003 Return-Path: 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 7F89137B401 for ; Fri, 1 Aug 2003 14:33:04 -0700 (PDT) Received: from obsecurity.dyndns.org (adsl-63-207-60-135.dsl.lsan03.pacbell.net [63.207.60.135]) by mx1.FreeBSD.org (Postfix) with ESMTP id 9AD5343FB1 for ; Fri, 1 Aug 2003 14:33:03 -0700 (PDT) (envelope-from kris@obsecurity.org) Received: from rot13.obsecurity.org (rot13.obsecurity.org [10.0.0.5]) by obsecurity.dyndns.org (Postfix) with ESMTP id 8190066CFA; Fri, 1 Aug 2003 14:33:02 -0700 (PDT) Received: by rot13.obsecurity.org (Postfix, from userid 1000) id 6508E52A; Fri, 1 Aug 2003 14:33:02 -0700 (PDT) Date: Fri, 1 Aug 2003 14:33:02 -0700 From: Kris Kennaway To: Andrew Gallatin Message-ID: <20030801213302.GA21988@rot13.obsecurity.org> References: <20030731084859.GB36327@rot13.obsecurity.org> <20030731204842.GA14640@rot13.obsecurity.org> <16170.25724.359310.850644@grasshopper.cs.duke.edu> <20030801131430.GA20056@rot13.obsecurity.org> <16170.32826.78241.478325@grasshopper.cs.duke.edu> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="Qxx1br4bt0+wmkIi" Content-Disposition: inline In-Reply-To: <16170.32826.78241.478325@grasshopper.cs.duke.edu> User-Agent: Mutt/1.4.1i cc: current@FreeBSD.org cc: Kris Kennaway Subject: Re: panic: vm_fault: fault on nofault entry, addr: fffffe0007e8e000 X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 01 Aug 2003 21:33:04 -0000 --Qxx1br4bt0+wmkIi Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Aug 01, 2003 at 10:59:06AM -0400, Andrew Gallatin wrote: >=20 > Kris Kennaway writes: > > On Fri, Aug 01, 2003 at 09:00:44AM -0400, Andrew Gallatin wrote: > >=20 > > > The crashdump might actually be useful here. You'd have only the > > > trap() and vm_fault() frames, but at least you'd have information > > > about the state of the vm system. > >=20 > > Two crashdumps coming up! I'll move them onto beast:/j/kris/crash > > together with the kernel.debug. > >=20 >=20 > I may have wasted your time. The first one is unusable (lots of ddb > cruft). Damned gdb -k. Grrr. That one was the third panic I posted, which was the: trap entry =3D 0x2 (memory management fault) > I don't have read perms on vmcore.{1,2}, so I don't know if they are > helpful. =20 Oops, sorry. > If you're willing to get your traces via ddb's debug.trace_on_panic > and to set debug.debugger_on_panic=3D0, then we might get at least a > partial trace. FWIW, I have to do this to get any sort of crashdump > at all on SMP x86. I'm amazed you were able to call doadump from ddb. > When I try that on x86, I just get a continuous stream of panics or > fatal traps. Hmm, I don't see this on the UP i386 machines. Bento hasn't panicked in a while (time to upgrade!), although I do seem to recall problems the last time it did. kris --Qxx1br4bt0+wmkIi Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.2 (FreeBSD) iD8DBQE/KtyOWry0BWjoQKURAhiFAJ48U10d2A4DkIKkeTbaVupV3GBjbQCgnSPn OyEWLdXmLDt5V1xqLJ1K3VU= =PoeS -----END PGP SIGNATURE----- --Qxx1br4bt0+wmkIi--