Bug 546437

Description of problem:

wodim creates CD-R and CD-RW discs that are read back with errors.  It can be reproduces reliably on two systems running Fedora 11 with different brands of drives (TSST and PDBS).  Both systems have written CD-R ands CD-RW in the past with no trouble.

Version-Release number of selected component (if applicable):

wodim-1.1.9-6.fc11.x86_64

How reproducible:

Every time

Steps to Reproduce:
1. Get an iso that fits a CD (e.g. http://pogostick.net/~pnh/ntpasswd/cd080802.zip; unzip it)
2. Write it with wodim at the lowest speed (I tried no "-speed" as well):
wodim -speed=1 cd080802.iso
3. Reload the disk, compare it to the image:
cmp cd080802.iso /dev/sr0
  
Actual results:
cmp: /dev/sr0: Input/output error

Expected results:
comparison suceeds

Additional info:

wodim output:

# wodim -speed=1 cd080802.iso 
wodim: No write mode specified.
wodim: Asuming -tao mode.
wodim: Future versions of wodim may have different drive dependent defaults.
Device was not specified. Trying to find an appropriate drive...
Looking for a CD-R drive to store 3.53 MiB...
Detected CD-R drive: /dev/cdrw
Using /dev/cdrom of unknown capabilities
Device type    : Removable CD-ROM
Version        : 5
Response Format: 2
Capabilities   : 
Vendor_info    : 'TSSTcorp'
Identification : 'CDDVDW SH-S223F '
Revision       : 'SB02'
Device seems to be: Generic mmc2 DVD-R/DVD-RW.
Using generic SCSI-3/mmc   CD-R/CD-RW driver (mmc_cdr).
Driver flags   : MMC-3 SWABAUDIO BURNFREE 
Supported modes: TAO PACKET SAO SAO/R96P SAO/R96R RAW/R16 RAW/R96P RAW/R96R
Speed set to 1412 KB/s
Starting to write CD/DVD at speed   8.0 in real TAO mode for single session.
Last chance to quit, starting real write in    0 seconds. Operation starts.
Track 01: Total bytes read/written: 3702784/3702784 (1808 sectors).

Kernel messages:
sr 2:0:1:0: [sr0] Unhandled sense code
sr 2:0:1:0: [sr0] Result: hostbyte=0x00 driverbyte=0x08
sr 2:0:1:0: [sr0] Sense Key : 0x3 [current] 
sr 2:0:1:0: [sr0] ASC=0x11 ASCQ=0x5
sr 2:0:1:0: [sr0] CDB: cdb[0]=0x28: 28 00 00 00 06 f8 00 00 1a 00
end_request: I/O error, dev sr0, sector 7136
__ratelimit: 3 callbacks suppressed
Buffer I/O error on device sr0, logical block 892
Buffer I/O error on device sr0, logical block 893
Buffer I/O error on device sr0, logical block 894
Buffer I/O error on device sr0, logical block 895
Buffer I/O error on device sr0, logical block 896
Buffer I/O error on device sr0, logical block 897
Buffer I/O error on device sr0, logical block 898
Buffer I/O error on device sr0, logical block 899
Buffer I/O error on device sr0, logical block 900
Buffer I/O error on device sr0, logical block 901

The same happens with bigger images, such as FreeBSD 8.0.  The same happens when writing to CD-RW.  I don't have DVD-R with me.  Writing to DVD+R with growisofs is fine.

The original image size is 3702784 (904*4096).  When reading back the image, the size is 3653632 (892*4096).  Thus, the last 12 blocks (4k each) are not readable.

Writing to a DVD-R was successful, the cmp command reported no difference, but the messages from wodim indicated some problem:

# wodim -speed=1 cd080802.iso 
wodim: No write mode specified.
wodim: Asuming -tao mode.
wodim: Future versions of wodim may have different drive dependent defaults.
Device was not specified. Trying to find an appropriate drive...
Looking for a CD-R drive to store 3.53 MiB...
Detected CD-R drive: /dev/cdrw
Using /dev/cdrom of unknown capabilities
Device type    : Removable CD-ROM
Version        : 5
Response Format: 2
Capabilities   : 
Vendor_info    : 'TSSTcorp'
Identification : 'CDDVDW SH-S223F '
Revision       : 'SB02'
Device seems to be: Generic mmc2 DVD-R/DVD-RW.
Using generic SCSI-3/mmc DVD-R(W) driver (mmc_mdvd).
Driver flags   : SWABAUDIO BURNFREE 
Supported modes: PACKET SAO
Speed set to 5540 KB/s
Starting to write CD/DVD at speed   4.0 in real unknown mode for single session.
Last chance to quit, starting real write in    0 seconds. Operation starts.
Track 01: Total bytes read/written: 3702784/3702784 (1808 sectors).
Errno: 5 (Input/output error), flush cache scsi sendcmd: no error
CDB:  35 00 00 00 00 00 00 00 00 00
status: 0x2 (CHECK CONDITION)
Sense Bytes: 72 0B 00 00 00 00 00 0E 09 0C 00 00 00 03 00 00
Sense Key: 0x0 No Additional Sense, Segment 11
Sense Code: 0x00 Qual 0x03 (setmark detected) Fru 0x0
Sense flags: Blk 0 (not valid) 
cmd finished after 136.231s timeout 120s
Trouble flushing the cache
wodim: Cannot fixate disk.

The same bug is described in Ubuntu:
https://bugs.launchpad.net/ubuntu/+source/cdrkit/+bug/435237