From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263636AbTLON6L (ORCPT ); Mon, 15 Dec 2003 08:58:11 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263632AbTLON6L (ORCPT ); Mon, 15 Dec 2003 08:58:11 -0500 Received: from 82-32-19-107.cable.ubr03.azte.blueyonder.co.uk ([82.32.19.107]:10116 "EHLO amphibian.dyndns.org") by vger.kernel.org with ESMTP id S263636AbTLON6F (ORCPT ); Mon, 15 Dec 2003 08:58:05 -0500 Date: Mon, 15 Dec 2003 13:58:02 +0000 To: linux-kernel@vger.kernel.org Subject: 'bad: scheduling while atomic!', preempt kernel, 2.6.1-test11, reading an apparently duff DVD-R Message-ID: <20031215135802.GA4332@amphibian.dyndns.org> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="lrZ03NoBR/3+SXJZ" Content-Disposition: inline User-Agent: Mutt/1.5.4i From: Toad Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org --lrZ03NoBR/3+SXJZ Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable I got the following when trying to mount a particular DVD-R on Linux 2.6.0-test11, using an IDE DVD-RW drive, using SCSI emulation, with the preempt kernel option enabled, and taskfile I/O: (the middle bit was repeated several times): ide-scsi: reset called for 133 bad: scheduling while atomic! Call Trace: [] schedule+0x55c/0x570 [] schedule_timeout+0x5e/0xb0 [] process_timeout+0x0/0x10 [] idescsi_reset+0xf7/0x110 [] scsi_try_bus_device_reset+0x52/0x90 [] scsi_eh_bus_device_reset+0x5d/0xe0 [] scsi_eh_ready_devs+0x28/0x70 [] scsi_unjam_host+0xbf/0xd0 [] scsi_error_handler+0xda/0x120 [] scsi_error_handler+0x0/0x120 [] kernel_thread_helper+0x5/0xc SCSI error: host 0 id 0 lun 0 return code =3D 6000000 Sense class 0, sense error 0, extended sense 0 mount: No medium found I also suspect that it is refusing to read valid DVD-Rs, but it could just be my drive. One of them successfully mounted and then complained about attempt to access beyond end of device, and another 6 or so refused to mount for the same reason. If you require any further information, please ask me. Software: Kernel 2.6.0-test11, configured as above, Debian sid current (glibc2.3 IIRC), mount version 2.12, athlon XP 2800+, ATI's fglrx module loaded, sound (emu10k1) as moule, AGP, and some networking and lm_sensors stuff (all from stock kernel). --=20 Matthew J Toseland - toad@amphibian.dyndns.org Freenet Project Official Codemonkey - http://freenetproject.org/ ICTHUS - Nothing is impossible. Our Boss says so. --lrZ03NoBR/3+SXJZ Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.3 (GNU/Linux) iD8DBQE/3b3pr5e+zmpNTm8RAiCeAJ9MjHfE38fytfZ56FFPu5zZEfJvXQCfcu23 odXU2ol5nDfSYtkXaGH8Va8= =LH2/ -----END PGP SIGNATURE----- --lrZ03NoBR/3+SXJZ--