Messages in this thread | ![/](/images/icornerl.gif) | | Subject | Re: 2.5.64-mm6: oops in elv_remove_request | From | Jeremy Fitzhardinge <> | Date | 14 Mar 2003 09:59:35 -0800 |
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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
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