Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Mon, 27 Nov 2000 09:58:09 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Mon, 27 Nov 2000 09:58:00 -0500 Received: from etpmod.phys.tue.nl ([131.155.111.35]:18441 "EHLO etpmod.phys.tue.nl") by vger.kernel.org with ESMTP id ; Mon, 27 Nov 2000 09:57:41 -0500 Date: Mon, 27 Nov 2000 15:26:35 +0100 From: Kurt Garloff To: Matthias Andree Cc: Linux SCSI list , Linux kernel list Subject: Re: [2.2.17] yes: oops again in /proc/scsi/scsi Message-ID: <20001127152635.K18517@garloff.etpnet.phys.tue.nl> Mail-Followup-To: Kurt Garloff , Matthias Andree , Linux SCSI list , Linux kernel list In-Reply-To: <20001122020618.A1411@emma1.emma.line.org> <20001123010712.C32555@garloff.etpnet.phys.tue.nl> <20001127091005.A2973@emma1.emma.line.org> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-md5; protocol="application/pgp-signature"; boundary="DN8g+DOX2TxGxleI" Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: <20001127091005.A2973@emma1.emma.line.org>; from matthias.andree@stud.uni-dortmund.de on Mon, Nov 27, 2000 at 09:10:05AM +0100 X-Operating-System: Linux 2.2.16 i686 X-PGP-Info: on http://www.garloff.de/kurt/mykeys.pgp X-PGP-Key: 1024D/1C98774E, 1024R/CEFC9215 Organization: TUE/NL, SuSE/FRG Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org --DN8g+DOX2TxGxleI Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Mon, Nov 27, 2000 at 09:10:05AM +0100, Matthias Andree wrote: > My previous mail was a tad too early. After I moved the bus back to the > Tekram DC-390U (sym53c8xx driver), I caught an oops again, and > rescan-scsi-bus.sh caught a SIGSEGV. There seems to be a kernel bug somew= here > in that SCSI handling stuff: >=20 > Unable to handle kernel NULL pointer dereference at virtual address 00000= 052 > current->tss.cr3 =3D 07106000, %%cr3 =3D 07106000 > *pde =3D 00000000 > Oops: 0002 > CPU: 0 > EIP: 0010:[sr_finish+112/388] > EFLAGS: 00010206 > eax: 00000000 ebx: 00000054 ecx: 00000005 edx: c7f9cc00 > esi: c629bd50 edi: c7f9cc40 ebp: 00000001 esp: c629bd3c > ds: 0018 es: 0018 ss: 0018 > Process rescan-scsi-bus (pid: 2846, process nr: 23, stackpage=3Dc629b000) > Stack: 00000000 c7f88340 c02a9960 c629bd4c 00307273 c01fedaf c7f88700 c75= 55de0 > c629becc c01fedf3 00000000 00000000 c7f88340 00000000 c6e132c0 c02= cb0e0 > c6e132c8 c0132793 c6e132c0 c629bda4 c629bda4 c0001a00 00020000 c63= 532c0 > Call Trace: [scan_scsis+491/1076] [scan_scsis+559/1076] [get_new_inode+14= 7/312] [iget4+121/132] [vsprintf+720/764] [wake_up_process+64/76] [__wake_u= p+59/68] > Code: 80 48 52 20 a1 8c 99 2a c0 80 4c 18 16 08 a1 8c 99 2a c0 80 > Using defaults from ksymoops -t elf32-i386 -a i386 This time, I do not suspect the low-level driver. It mey very well be, that there's a subtile bug WRT add/remove-single-device housekeeping in the SCSI layer. You told that you did parallel rescan-scsi-bus.sh calls. That may have confused the kernel. Did the above oops happen without such abuse? Regards, --=20 Kurt Garloff [Eindhoven, NL] Physics: Plasma simulations [TU Eindhoven, NL] Linux: SCSI, Security [SuSE Nuernberg, FRG] (See mail header or public key servers for PGP2 and GPG public keys.) --DN8g+DOX2TxGxleI Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.4 (GNU/Linux) Comment: For info see http://www.gnupg.org iD8DBQE6Im8bxmLh6hyYd04RApGXAKCl2o0Qs3NdPNE9U9nfBQUGyZYpjQCgwh6o Jg83qyxy1I8xqEWjfP3WbUQ= =3OC2 -----END PGP SIGNATURE----- --DN8g+DOX2TxGxleI-- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/