From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Fri, 14 Mar 2003 12:48:56 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Fri, 14 Mar 2003 12:48:56 -0500 Received: from adsl-206-170-148-147.dsl.snfc21.pacbell.net ([206.170.148.147]:14351 "EHLO gw.goop.org") by vger.kernel.org with ESMTP id ; Fri, 14 Mar 2003 12:48:48 -0500 Subject: Re: 2.5.64-mm6: oops in elv_remove_request From: Jeremy Fitzhardinge To: Jens Axboe Cc: Linux Kernel List , Andrew Morton In-Reply-To: <20030314113732.GC791@suse.de> References: <1047576167.1318.4.camel@ixodes.goop.org> <20030313175454.GP836@suse.de> <1047578690.1322.17.camel@ixodes.goop.org> <20030313190247.GQ836@suse.de> <1047633884.1147.3.camel@ixodes.goop.org> <20030314104219.GA791@suse.de> <1047637870.1147.27.camel@ixodes.goop.org> <20030314113732.GC791@suse.de> Content-Type: text/plain Organization: Message-Id: <1047664774.25536.47.camel@ixodes.goop.org> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.2.2 Date: 14 Mar 2003 09:59:35 -0800 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 2003-03-14 at 03:37, Jens Axboe wrote: > Can you send me the output of -prcap? # cdrecord -prcap Cdrecord 2.01a05 (i686-pc-linux-gnu) Copyright (C) 1995-2002 J?rg Schilling scsidev: '/dev/hdc' devname: '/dev/hdc' scsibus: -2 target: -2 lun: -2 Warning: Open by 'devname' is unintentional and not supported. Linux sg driver version: 3.5.27 Using libscg version 'schily-0.7' Device type : Removable CD-ROM Version : 2 Response Format: 2 Capabilities : Vendor_info : 'PLEXTOR ' Identifikation : 'CD-R PX-W4824A' Revision : '1.04' Device seems to be: Generic mmc CD-RW. Drive capabilities, per MMC-3 page 2A: Does read CD-R media Does write CD-R media Does read CD-RW media Does write CD-RW media Does not read DVD-ROM media Does not read DVD-R media Does not write DVD-R media Does not read DVD-RAM media Does not write DVD-RAM media Does support test writing Does read Mode 2 Form 1 blocks Does read Mode 2 Form 2 blocks Does read digital audio blocks Does restart non-streamed digital audio reads accurately Does support Buffer-Underrun-Free recording Does read multi-session CDs Does read fixed-packet CD media using Method 2 Does not read CD bar code Does read R-W subcode information Does return R-W subcode de-interleaved and error-corrected Does read raw P-W subcode data from lead in Does return CD media catalog number Does return CD ISRC information Does support C2 error pointers Does deliver composite A/V data Does play audio CDs Number of volume control levels: 256 Does support individual volume control setting for each channel Does support independent mute setting for each channel Does not support digital output on port 1 Does not support digital output on port 2 Loading mechanism type: tray Does support ejection of CD via START/STOP command Does not lock media on power up via prevent jumper Does allow media to be locked in the drive via PREVENT/ALLOW command Is not currently in a media-locked state Does not support changing side of disk Does not have load-empty-slot-in-changer feature Does not support Individual Disk Present feature Maximum read speed: 7056 kB/s (CD 40x, DVD 5x) Current read speed: 7056 kB/s (CD 40x, DVD 5x) Maximum write speed: 8467 kB/s (CD 48x, DVD 6x) Current write speed: 8467 kB/s (CD 48x, DVD 6x) Rotational control selected: CLV/PCAV Buffer size in KB: 4096 Copy management revision supported: 0 Number of supported write speeds: 8 Write speed # 0: 8467 kB/s CLV/PCAV (CD 48x, DVD 6x) Write speed # 1: 7056 kB/s CLV/PCAV (CD 40x, DVD 5x) Write speed # 2: 5645 kB/s CLV/PCAV (CD 32x, DVD 4x) Write speed # 3: 4234 kB/s CLV/PCAV (CD 24x, DVD 3x) Write speed # 4: 3528 kB/s CLV/PCAV (CD 20x, DVD 2x) Write speed # 5: 2822 kB/s CLV/PCAV (CD 16x, DVD 2x) Write speed # 6: 1411 kB/s CLV/PCAV (CD 8x, DVD 1x) Write speed # 7: 706 kB/s CLV/PCAV (CD 4x, DVD 0x) But... When I first ran -checkdrive this morning, it gave me good results: # cdrecord -checkdrive Cdrecord 2.01a05 (i686-pc-linux-gnu) Copyright (C) 1995-2002 J?rg Schilling scsidev: '/dev/hdc' devname: '/dev/hdc' scsibus: -2 target: -2 lun: -2 Warning: Open by 'devname' is unintentional and not supported. Linux sg driver version: 3.5.27 Using libscg version 'schily-0.7' Device type : Removable CD-ROM Version : 2 Response Format: 2 Capabilities : Vendor_info : 'PLEXTOR ' Identifikation : 'CD-R PX-W4824A' Revision : '1.04' Device seems to be: Generic mmc CD-RW. Using generic SCSI-3/mmc CD-R driver (mmc_cdr). Driver flags : MMC-3 SWABAUDIO BURNFREE VARIREC Supported modes: TAO PACKET SAO SAO/R96P SAO/R96R RAW/R16 RAW/R96P RAW/R96R But immediately afterwards: # cdrecord -checkdrive Cdrecord 2.01a05 (i686-pc-linux-gnu) Copyright (C) 1995-2002 J?rg Schilling scsidev: '/dev/hdc' devname: '/dev/hdc' scsibus: -2 target: -2 lun: -2 Warning: Open by 'devname' is unintentional and not supported. Linux sg driver version: 3.5.27 Using libscg version 'schily-0.7' Device type : Removable CD-ROM Version : 0 Response Format: 1 Vendor_info : 'PLEXTOR ' Identifikation : 'CD-R PX-W4824A' Revision : '1.04' Device seems to be: Generic mmc CD-RW. Using generic SCSI-3/mmc CD-R driver (mmc_cdr). Driver flags : MMC-3 SWABAUDIO BURNFREE VARIREC Supported modes: Ejecting and reinserting the disc seems to restore things: # cdrecord -checkdrive Cdrecord 2.01a05 (i686-pc-linux-gnu) Copyright (C) 1995-2002 J?rg Schilling scsidev: '/dev/hdc' devname: '/dev/hdc' scsibus: -2 target: -2 lun: -2 Warning: Open by 'devname' is unintentional and not supported. Linux sg driver version: 3.5.27 Using libscg version 'schily-0.7' Device type : Removable CD-ROM Version : 2 Response Format: 2 Capabilities : Vendor_info : 'PLEXTOR ' Identifikation : 'CD-R PX-W4824A' Revision : '1.04' Device seems to be: Generic mmc CD-RW. Using generic SCSI-3/mmc CD-R driver (mmc_cdr). Driver flags : MMC-3 SWABAUDIO BURNFREE VARIREC Supported modes: TAO PACKET SAO SAO/R96P SAO/R96R RAW/R16 RAW/R96P RAW/R96R Once: # cdrecord -checkdrive Cdrecord 2.01a05 (i686-pc-linux-gnu) Copyright (C) 1995-2002 J?rg Schilling scsidev: '/dev/hdc' devname: '/dev/hdc' scsibus: -2 target: -2 lun: -2 Warning: Open by 'devname' is unintentional and not supported. Linux sg driver version: 3.5.27 Using libscg version 'schily-0.7' Device type : Removable CD-ROM Version : 0 Response Format: 1 Vendor_info : 'PLEXTOR ' Identifikation : 'CD-R PX-W4824A' Revision : '1.04' Device seems to be: Generic mmc CD-RW. Using generic SCSI-3/mmc CD-R driver (mmc_cdr). Driver flags : MMC-3 SWABAUDIO BURNFREE VARIREC Supported modes: Notice the "version" and "response format" fields have changed. J