linux-kernel - [BUG] Linux-2.6.31-rc1-git9 Cannot Recognize Empty DVD Media

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Date:	Thu, 02 Jul 2009 16:23:00 +0300
From:	Tarkan Erimer <tarkan.erimer@...knet.net.tr>
To:	LKML <linux-kernel@...r.kernel.org>
Subject: [BUG] Linux-2.6.31-rc1-git9 Cannot Recognize Empty DVD Media

Hi,

I just compiled 2.6.31-rc1-git9 to give it a try. The problem I 
encountered with this release is that it cannot recognize empty DVD 
(probably CD will be the same. But, I didn't try it.) media with K3b. 
I'm having the below error messages in dmesg. Also, I tried with several 
new empty DVD medias. So, I'm sure that it's not a faulty DVD media. The 
same media burns fine with K3b under <= 2.6.31-rc1-git6.


[ 4526.724245] cdrom: This disc doesn't have any tracks I recognize!
[ 4526.748278] sr 0:0:0:0: [sr0] Result: hostbyte=DID_OK 
driverbyte=DRIVER_SENSE
[ 4526.748285] sr 0:0:0:0: [sr0] Sense Key : Illegal Request [current]
[ 4526.748292] sr 0:0:0:0: [sr0] Add. Sense: Illegal mode for this track
[ 4526.748300] end_request: I/O error, dev sr0, sector 0
[ 4526.748307] Buffer I/O error on device sr0, logical block 0
[ 4526.750295] sr 0:0:0:0: [sr0] Result: hostbyte=DID_OK 
driverbyte=DRIVER_SENSE
[ 4526.750302] sr 0:0:0:0: [sr0] Sense Key : Illegal Request [current]
[ 4526.750308] sr 0:0:0:0: [sr0] Add. Sense: Illegal mode for this track
[ 4526.750316] end_request: I/O error, dev sr0, sector 0
[ 4526.750321] Buffer I/O error on device sr0, logical block 0
[ 4586.738212] cdrom: This disc doesn't have any tracks I recognize!
[ 4586.753644] sr 0:0:0:0: [sr0] Result: hostbyte=DID_OK 
driverbyte=DRIVER_SENSE
[ 4586.753652] sr 0:0:0:0: [sr0] Sense Key : Illegal Request [current]
[ 4586.753659] sr 0:0:0:0: [sr0] Add. Sense: Illegal mode for this track
[ 4586.753668] end_request: I/O error, dev sr0, sector 0
[ 4586.753673] Buffer I/O error on device sr0, logical block 0
[ 4586.757373] sr 0:0:0:0: [sr0] Result: hostbyte=DID_OK 
driverbyte=DRIVER_SENSE
[ 4586.757379] sr 0:0:0:0: [sr0] Sense Key : Illegal Request [current]
[ 4586.757384] sr 0:0:0:0: [sr0] Add. Sense: Illegal mode for this track
[ 4586.757391] end_request: I/O error, dev sr0, sector 0
[ 4586.757395] Buffer I/O error on device sr0, logical block 0


Tarkan
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