From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932367AbYEPPK6 (ORCPT ); Fri, 16 May 2008 11:10:58 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1763083AbYEPOzo (ORCPT ); Fri, 16 May 2008 10:55:44 -0400 Received: from wa-out-1112.google.com ([209.85.146.180]:37411 "EHLO wa-out-1112.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753567AbYEPOzm (ORCPT ); Fri, 16 May 2008 10:55:42 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:cc:mime-version:content-type:content-transfer-encoding:content-disposition; b=iOwZee2hBlFm2ldnISM8k2ERZkoQXBawRMoKoe1XHpYhn97UpM27lGSlPXiF2S2QQ2KNyoNwQIwCzo3cFSddY9v5MRGJyqmCgkda3TqInAhbyrlv4+I+mvDETf++iRpHXUra/trvk6bZucJVzbc5Eggvm/sA2tIoK6cVBz6ha6s= Message-ID: <8db1092f0805160755u54914884ibe1ed8a23b8e1015@mail.gmail.com> Date: Fri, 16 May 2008 16:55:36 +0200 From: "Maciej Rutecki" To: "Linus Torvalds" Subject: [Re: Linux 2.6.26-rc2] Write protect on on Cc: "Linux Kernel Mailing List" , linux-usb@vger.kernel.org, usb-storage@lists.one-eyed-alien.net MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from base64 to 8bit by alpha.home.local id m4GFB3EB004572 I have external drive connected via USB to computer. In 2.6.25.4 whenI plug into computer works fine, and have this messages in dmesg:usb 5-1: new high speed USB device using ehci_hcd and address 4usb 5-1: configuration #1 chosen from 1 choiceInitializing USB Mass Storage driver...scsi2 : SCSI emulation for USB Mass Storage devicesusbcore: registered new interface driver usb-storageUSB Mass Storage support registered.usb-storage: device found at 4usb-storage: waiting for device to settle before scanningscsi 2:0:0:0: Direct-Access Initio MHV2080BH PL 3.01 PQ: 0 ANSI: 0usb-storage: device scan completeDriver 'sd' needs updating - please use bus_type methodssd 2:0:0:0: [sda] 156301488 512-byte hardware sectors (80026 MB)sd 2:0:0:0: [sda] Write Protect is offsd 2:0:0:0: [sda] Mode Sense: 00 00 00 00sd 2:0:0:0: [sda] Assuming drive cache: write throughsd 2:0:0:0: [sda] 156301488 512-byte hardware sectors (80026 MB)sd 2:0:0:0: [sda] Write Protect is offsd 2:0:0:0: [sda] Mode Sense: 00 00 00 00sd 2:0:0:0: [sda] Assuming drive cache: write through sda: sda1sd 2:0:0:0: [sda] Attached SCSI disk Works fine:maciek@zlom:~/kernel.org/2.6.25.4$ ntfsmount /dev/sda1 ~/mnt/ntfs/maciek@zlom:~/kernel.org/2.6.25.4$ mount | grep fusefusectl on /sys/fs/fuse/connections type fusectl (rw)/dev/sda1 on /home/maciek/mnt/ntfs type fuseblk(rw,nosuid,nodev,default_permissions,allow_other,blksize=4096,user=maciek) But on 2.6.26-rc* sometimes I have messages "Write protect is on", e.g.:sd 2:0:0:0: [sda] 156301488 512-byte hardware sectors (80026 MB)sd 2:0:0:0: [sda] Write Protect is onsd 2:0:0:0: [sda] Mode Sense: 09 50 f8 afsd 2:0:0:0: [sda] Assuming drive cache: write throughsd 2:0:0:0: [sda] 156301488 512-byte hardware sectors (80026 MB)sd 2:0:0:0: [sda] Write Protect is offsd 2:0:0:0: [sda] Mode Sense: 00 00 00 00sd 2:0:0:0: [sda] Assuming drive cache: write through sda: sda1sd 2:0:0:0: [sda] Attached SCSI disk or:sd 2:0:0:0: [sda] 156301488 512-byte hardware sectors (80026 MB)sd 2:0:0:0: [sda] Write Protect is onsd 2:0:0:0: [sda] Mode Sense: 09 50 f8 afsd 2:0:0:0: [sda] Assuming drive cache: write throughsd 2:0:0:0: [sda] 156301488 512-byte hardware sectors (80026 MB)sd 2:0:0:0: [sda] Write Protect is onsd 2:0:0:0: [sda] Mode Sense: 09 50 f8 afsd 2:0:0:0: [sda] Assuming drive cache: write through sda: sda1sd 2:0:0:0: [sda] Attached SCSI disk Then mount fails:maciek@zlom:~/kernel.org/2.6.26-rc2$ ntfsmount /dev/sda1 ~/mnt/ntfs/Error opening partition device: System plików wyłącznie do odczytu.Failed to startup volume: System plików wyłącznie do odczytu.Failed to mount '/dev/sda1': System plików wyłącznie do odczytu.Mount failed. "System plików wyłącznie do odczytu." means "filesystem readonly" Tested on two computers PC and laptop. Dmesg and config:2.6.25.4: http://unixy.pl/maciek/download/kernel/2.6.25.4/2.6.26-rc1: http://unixy.pl/maciek/download/kernel/2.6.26-rc1/2.6.26-rc2: http://unixy.pl/maciek/download/kernel/2.6.26-rc2/ -- Maciej Ruteckihttp://www.maciek.unixy.pl{.n++%ݶw{.n+{G{ayʇڙ,jfhz_(階ݢj"mG?&~iOzv^m ?I