From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S265547AbUBPNul (ORCPT ); Mon, 16 Feb 2004 08:50:41 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S265540AbUBPNuU (ORCPT ); Mon, 16 Feb 2004 08:50:20 -0500 Received: from arhont1.eclipse.co.uk ([81.168.98.121]:19136 "EHLO pingo.core.arhont.com") by vger.kernel.org with ESMTP id S265547AbUBPNs2 (ORCPT ); Mon, 16 Feb 2004 08:48:28 -0500 Message-ID: <4030CA24.1090106@arhont.com> Date: Mon, 16 Feb 2004 13:48:20 +0000 From: Andrei Mikhailovsky User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.6) Gecko/20040122 Debian/1.6-1 X-Accept-Language: en MIME-Version: 1.0 To: linux-kernel@vger.kernel.org Subject: 2.6.2 khubd oops X-Enigmail-Version: 0.83.1.0 X-Enigmail-Supports: pgp-inline, pgp-mime Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Score: -4.9 (----) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 If anyone interested, I have an oops everytime i use and disconnect a scanner device (Mustec 1200 UB Plus). Here is the dmesg output. (If required, I can produce more debuging output). hub 3-1:1.0: new USB device on port 2, assigned address 3 drivers/usb/image/scanner.c: USB scanner device (0x05d8/0x4002) now attached to usb/scanner0 usb 3-1.2: USB disconnect, address 3 Unable to handle kernel NULL pointer dereference at virtual address 0000001e ~ printing eip: e18b10dc *pde = 00000000 Oops: 0000 [#1] CPU: 0 EIP: 0060:[] Tainted: PF EFLAGS: 00010282 EIP is at disconnect_scanner+0x2c/0x69 [scanner] eax: c28dd9c0 ebx: c28dd9d4 ecx: e18b10b0 edx: 00000002 esi: 00000000 edi: cf72b0e8 ebp: e18b4bfc esp: dfe11e50 ds: 007b es: 007b ss: 0068 Process khubd (pid: 5, threadinfo=dfe10000 task=c151c040) Stack: c28dd9c0 e18b4c78 c28dd9c0 e18b4ce0 c02a02db c28dd9c0 c28dd9c0 c28dda00 ~ c28dd9d4 e18b4d00 c0258854 c28dd9d4 c28dda00 cf72b0fc cf72b0c0 e18b0a5f ~ c28dd9d4 c28dd9c0 cf72b0fc e18b4c0c 00000000 00000000 c020c0f8 cf72b0fc Call Trace: ~ [] usb_unbind_interface+0x7b/0x80 ~ [] device_release_driver+0x64/0x70 ~ [] destroy_scanner+0x4f/0xb0 [scanner] ~ [] kobject_cleanup+0x98/0xa0 ~ [] usb_unbind_interface+0x7b/0x80 ~ [] device_release_driver+0x64/0x70 ~ [] bus_remove_device+0x55/0xa0 ~ [] device_del+0x5d/0xa0 ~ [] usb_disable_device+0x6f/0xb0 ~ [] usb_disconnect+0x96/0xf0 ~ [] hub_port_connect_change+0x30f/0x320 ~ [] hub_port_status+0x43/0xb0 ~ [] hub_events+0x2ca/0x340 ~ [] hub_thread+0x2d/0xf0 ~ [] ret_from_fork+0x6/0x14 ~ [] default_wake_function+0x0/0x20 ~ [] hub_thread+0x0/0xf0 ~ [] kernel_thread_helper+0x5/0xc Code: 80 7e 1e 00 75 2a 85 f6 74 1a 8d 46 3c 8b 5c 24 08 8b 74 24 - -- Andrei Mikhailovsky Arhont Ltd Web: http://www.arhont.com Tel: +44 (0)870 4431337 Fax: +44 (0)1454 201200 PGP: Key ID - 0xFF67A4F4 PGP: Server - keyserver.pgp.com -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (GNU/Linux) Comment: Using GnuPG with Debian - http://enigmail.mozdev.org iD8DBQFAMMoj5bSBOf9npPQRAlGcAJ4lJ2MCTfUDNWCR/ugegOgI4ZGoFwCeJVk1 2lD9W7BFiUqEkFyUXHdhkes= =GUeK -----END PGP SIGNATURE-----