Bug#583949:

[Mathieu Malaterre <mathieu.malaterre@gmail.com>]

tags 583949 + squeeze sid
thanks

Hi,

  Has there been any update on this issue ? I can reproduce it here. Using:

Linux mybox 2.6.32-bpo.5-amd64 #1 SMP Fri Jun 11 08:42:31 UTC 2010
x86_64 GNU/Linux

when I insert a CD-R , dmesg shows:

[ 3215.932055] CE: hpet increasing min_delta_ns to 22500 nsec
[ 3224.224047] CE: hpet increasing min_delta_ns to 33750 nsec
[ 3247.464319] sr 0:0:0:0: [sr0] Unhandled sense code
[ 3247.464327] sr 0:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[ 3247.464336] sr 0:0:0:0: [sr0] Sense Key : Hardware Error [current]
[ 3247.464345] sr 0:0:0:0: [sr0] Add. Sense: Timeout on logical unit
[ 3247.464355] sr 0:0:0:0: [sr0] CDB: Read(10): 28 00 00 01 87 68 00 00 01 00
[ 3247.464374] end_request: I/O error, dev sr0, sector 400800
[ 3247.464384] Buffer I/O error on device sr0, logical block 100200
[ 3253.942573] sr 0:0:0:0: [sr0] Unhandled sense code
[ 3253.942581] sr 0:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[ 3253.942590] sr 0:0:0:0: [sr0] Sense Key : Hardware Error [current]
[ 3253.942599] sr 0:0:0:0: [sr0] Add. Sense: Timeout on logical unit
[ 3253.942610] sr 0:0:0:0: [sr0] CDB: Read(10): 28 00 00 01 87 68 00 00 01 00
[ 3253.942628] end_request: I/O error, dev sr0, sector 400800
[ 3253.942638] Buffer I/O error on device sr0, logical block 100200
[ 3260.420680] sr 0:0:0:0: [sr0] Unhandled sense code
[ 3260.420688] sr 0:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[ 3260.420696] sr 0:0:0:0: [sr0] Sense Key : Hardware Error [current]
[ 3260.420705] sr 0:0:0:0: [sr0] Add. Sense: Timeout on logical unit
[ 3260.420716] sr 0:0:0:0: [sr0] CDB: Read(10): 28 00 00 01 87 68 00 00 01 00
[ 3260.420735] end_request: I/O error, dev sr0, sector 400800
[ 3260.420745] Buffer I/O error on device sr0, logical block 100200


DVD-R are fine .

I can mount the cdrom manually doing: sudo mount /dev/cdrom /tmp/cdrom

[ 3578.447634] Buffer I/O error on device sr0, logical block 100200
[ 3584.925386] sr 0:0:0:0: [sr0] Unhandled sense code
[ 3584.925394] sr 0:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[ 3584.925403] sr 0:0:0:0: [sr0] Sense Key : Hardware Error [current]
[ 3584.925412] sr 0:0:0:0: [sr0] Add. Sense: Timeout on logical unit
[ 3584.925423] sr 0:0:0:0: [sr0] CDB: Read(10): 28 00 00 01 87 68 00 00 01 00
[ 3584.925441] end_request: I/O error, dev sr0, sector 400800
[ 3584.925450] Buffer I/O error on device sr0, logical block 100200
[ 3585.495263] ISO 9660 Extensions: RRIP_1991A


What looks surprising is that my fstab shows:


/dev/cdrom1        /media/cdrom0   udf,iso9660 user,noauto     0       0

while

$ ls -al /dev/cdrom*
lrwxrwxrwx 1 root root 3 2010-08-21 10:42 /dev/cdrom -> sr0

I am not sure why there is a trailing '1' in my fstab (maybe during
the kernel update / udev update with uuid stuff)

Anyhow the bug can be seen on a DELL Precision M6300 / amd64 with a drive:

[    2.448406] ata1.00: ATAPI: TSSTcorp DVD+/-RW TS-L632H, D400, max UDMA/33
[    2.480325] ata1.00: configured for UDMA/33
[    2.488411] scsi 0:0:0:0: CD-ROM            TSSTcorp DVD+-RW
TS-L632H D400 PQ: 0 ANSI: 5

I could also find some reference on other distribution such as mandriva:

Bug 52806 -  CD-ROM media are not detected automatically
https://qa.mandriva.com/show_bug.cgi?id=52806

Thanks !
-- 
Mathieu