From owner-freebsd-stable@FreeBSD.ORG Wed Apr 16 16:19:03 2008 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id D1671106564A for ; Wed, 16 Apr 2008 16:19:03 +0000 (UTC) (envelope-from rsmith@xs4all.nl) Received: from smtp-vbr6.xs4all.nl (smtp-vbr6.xs4all.nl [194.109.24.26]) by mx1.freebsd.org (Postfix) with ESMTP id 698118FC1A for ; Wed, 16 Apr 2008 16:19:03 +0000 (UTC) (envelope-from rsmith@xs4all.nl) Received: from slackbox.xs4all.nl (slackbox.xs4all.nl [213.84.242.160]) by smtp-vbr6.xs4all.nl (8.13.8/8.13.8) with ESMTP id m3GGJ0Mk026074; Wed, 16 Apr 2008 18:19:01 +0200 (CEST) (envelope-from rsmith@xs4all.nl) Received: by slackbox.xs4all.nl (Postfix, from userid 1001) id 94521B82D; Wed, 16 Apr 2008 18:19:00 +0200 (CEST) Date: Wed, 16 Apr 2008 18:19:00 +0200 From: Roland Smith To: Steve Franks Message-ID: <20080416161900.GA64156@slackbox.xs4all.nl> Mail-Followup-To: Steve Franks , freebsd-stable@freebsd.org References: <539c60b90804111420kcb73e6do8a20dce574d13864@mail.gmail.com> <20080412213225.GB24224@slackbox.xs4all.nl> <539c60b90804141549u6a138ad9u9c77bbfcbbad0ff3@mail.gmail.com> <20080415175347.GA29045@slackbox.xs4all.nl> <539c60b90804151134q7a25a141m1205a1b04d8ffc2c@mail.gmail.com> <20080415192028.GA31706@slackbox.xs4all.nl> <539c60b90804160910q3a242d7amb474b40065d6c9c6@mail.gmail.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="OXfL5xGRrasGEqWY" Content-Disposition: inline In-Reply-To: <539c60b90804160910q3a242d7amb474b40065d6c9c6@mail.gmail.com> X-GPG-Fingerprint: 1A2B 477F 9970 BA3C 2914 B7CE 1277 EFB0 C321 A725 X-GPG-Key: http://www.xs4all.nl/~rsmith/pubkey.txt X-GPG-Notice: If this message is not signed, don't assume I sent it! User-Agent: Mutt/1.5.17 (2007-11-01) X-Virus-Scanned: by XS4ALL Virus Scanner Cc: freebsd-stable@freebsd.org Subject: Re: umass causes panic on 7 amd64 X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 16 Apr 2008 16:19:03 -0000 --OXfL5xGRrasGEqWY Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Apr 16, 2008 at 09:10:23AM -0700, Steve Franks wrote: >=20 > freebsd-stable: as you can see, Roland has been teaching me about > crashdumps since my umass brought down one system, and is rather > unusable on another. Here's the kgdb output: >=20 > Best, > Steve >=20 > [steve@dystant /usr/obj/usr/src/sys/GENERIC]$ sudo kgdb kernel.debug > /var/crash/vmcore.3 > [GDB will not be able to debug user-mode threads: > /usr/lib/libthread_db.so: Undefined symbol "ps_pglobal_lookup"] > GNU gdb 6.1.1 [FreeBSD] > Copyright 2004 Free Software Foundation, Inc. > GDB is free software, covered by the GNU General Public License, and you = are > welcome to change it and/or distribute copies of it under certain conditi= ons. > Type "show copying" to see the conditions. > There is absolutely no warranty for GDB. Type "show warranty" for detail= s. > This GDB was configured as "amd64-marcel-freebsd". >=20 > Unread portion of the kernel message buffer: >=20 >=20 > Fatal trap 12: page fault while in kernel mode > cpuid =3D 0; apic id =3D 00 > fault virtual address =3D 0x0 > fault code =3D supervisor read instruction, page not present > instruction pointer =3D 0x8:0x0 > stack pointer =3D 0x10:0xffffffffa0208570 > frame pointer =3D 0x10:0xffffff0001e1ca00 > code segment =3D base 0x0, limit 0xfffff, type 0x1b > =3D DPL 0, pres 1, long 1, def32 0, gran 1 > processor eflags =3D interrupt enabled, resume, IOPL =3D 0 > current process =3D 12 (swi4: clock sio) Odd. This doesn't seem to have anything to do with usb. It is in a kernel thread that runs the clock and serial port. > trap number =3D 12 > panic: page fault > cpuid =3D 0 > Uptime: 32s > Physical memory: 1002 MB > Dumping 96 MB: 81 65 49 33 17 >=20 > #0 doadump () at pcpu.h:194 > 194 __asm __volatile("movq %%gs:0,%0" : "=3Dr" (td)); > (kgdb) If you give the 'bt' command (backtrace) here, what does it say? Roland --=20 R.F.Smith http://www.xs4all.nl/~rsmith/ [plain text _non-HTML_ PGP/GnuPG encrypted/signed email much appreciated] pgp: 1A2B 477F 9970 BA3C 2914 B7CE 1277 EFB0 C321 A725 (KeyID: C321A725) --OXfL5xGRrasGEqWY Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.8 (FreeBSD) iEYEARECAAYFAkgGJvQACgkQEnfvsMMhpyVhuwCeJVhyMh5tbR4fKyWI3VkThUEV cTsAoIgMRGMm4/u23ZDkWTN3yCTfSPPa =cmyB -----END PGP SIGNATURE----- --OXfL5xGRrasGEqWY--