Comment 15 for bug 433438

I can report the same error on Karmic, with 2.6.31-16-generic-pae
and the CD/DVD no longer works under Ubuntu. Still working with the *other* OS.

But since I've upgraded to Karmic, the machine is now unstable, and there is always something not working well. And the boot process... it takes 2:30 minutes to boot on a Asus G70, with Duo T9500. I hope a more stable 10.4.

[24230.537875] sr 4:0:0:0: [sr0] Sense Key : Illegal Request [current]
[24230.537893] Info fld=0x0
[24230.537898] sr 4:0:0:0: [sr0] Add. Sense: Illegal mode for this track
[24230.537911] end_request: I/O error, dev sr0, sector 0
[24230.537919] __ratelimit: 29 callbacks suppressed
[24230.537925] Buffer I/O error on device sr0, logical block 0
[24230.537936] Buffer I/O error on device sr0, logical block 1
[24230.537943] Buffer I/O error on device sr0, logical block 2
[24230.537950] Buffer I/O error on device sr0, logical block 3
[24230.537956] Buffer I/O error on device sr0, logical block 4
[24230.537962] Buffer I/O error on device sr0, logical block 5
[24230.537969] Buffer I/O error on device sr0, logical block 6
[24230.537975] Buffer I/O error on device sr0, logical block 7
[24230.537981] Buffer I/O error on device sr0, logical block 8
[24230.537987] Buffer I/O error on device sr0, logical block 9
[24230.541425] sr 4:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[24230.541437] sr 4:0:0:0: [sr0] Sense Key : Illegal Request [current]
[24230.541449] Info fld=0x0
[24230.541455] sr 4:0:0:0: [sr0] Add. Sense: Illegal mode for this track
[24230.541469] end_request: I/O error, dev sr0, sector 0
[24230.594590] sr 4:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[24230.594602] sr 4:0:0:0: [sr0] Sense Key : Illegal Request [current]
[24230.594612] Info fld=0x0
[24230.594617] sr 4:0:0:0: [sr0] Add. Sense: Illegal mode for this track
[24230.594631] end_request: I/O error, dev sr0, sector 0
[24230.596640] sr 4:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[24230.596650] sr 4:0:0:0: [sr0] Sense Key : Illegal Request [current]
[24230.596661] Info fld=0x0
[24230.596666] sr 4:0:0:0: [sr0] Add. Sense: Illegal mode for this track
[24230.596679] end_request: I/O error, dev sr0, sector 0
[24230.601185] sr 4:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[24230.601195] sr 4:0:0:0: [sr0] Sense Key : Illegal Request [current]
[24230.601206] Info fld=0x0
[24230.601210] sr 4:0:0:0: [sr0] Add. Sense: Illegal mode for this track
[24230.601223] end_request: I/O error, dev sr0, sector 0