I'm having the same issue with trying to play DVDs. The drive worked perfectly about a week or two ago. (I don't use my DVD drive very often, so I am uncertain whether this problem occurred before or after updating to 8.10 RC.)
Relevant dmesg:
[38779.018260] end_request: I/O error, dev sr0, sector 15525888
[38779.018267] Buffer I/O error on device sr0, logical block 3881472
[38779.019766] end_request: I/O error, dev sr0, sector 15525892
[38779.019771] Buffer I/O error on device sr0, logical block 3881473
[38779.021129] end_request: I/O error, dev sr0, sector 15525888
[38779.021132] Buffer I/O error on device sr0, logical block 3881472
[38779.022523] end_request: I/O error, dev sr0, sector 15525892
[38779.022528] Buffer I/O error on device sr0, logical block 3881473
[38779.024093] end_request: I/O error, dev sr0, sector 15526096
[38779.024098] Buffer I/O error on device sr0, logical block 3881524
[38779.025495] end_request: I/O error, dev sr0, sector 15526100
[38779.025501] Buffer I/O error on device sr0, logical block 3881525
[38779.026971] end_request: I/O error, dev sr0, sector 15526096
[38779.026975] Buffer I/O error on device sr0, logical block 3881524
[38779.028535] end_request: I/O error, dev sr0, sector 15526100
[38779.028540] Buffer I/O error on device sr0, logical block 3881525
[38779.029939] end_request: I/O error, dev sr0, sector 15526112
[38779.029943] Buffer I/O error on device sr0, logical block 3881528
[38779.031341] end_request: I/O error, dev sr0, sector 15526112
[38779.031347] Buffer I/O error on device sr0, logical block 3881528
[38779.033018] end_request: I/O error, dev sr0, sector 15526112
[38779.034738] end_request: I/O error, dev sr0, sector 15526112
[38779.036216] end_request: I/O error, dev sr0, sector 15526112
[38779.037612] end_request: I/O error, dev sr0, sector 15526112
[38779.039017] end_request: I/O error, dev sr0, sector 15526112
[38779.040996] end_request: I/O error, dev sr0, sector 15526048
[38779.043579] end_request: I/O error, dev sr0, sector 15526052
[38779.045640] end_request: I/O error, dev sr0, sector 15526104
[38779.047043] end_request: I/O error, dev sr0, sector 15526108
[38779.048436] end_request: I/O error, dev sr0, sector 15526112
[38779.049822] end_request: I/O error, dev sr0, sector 15526112
[38779.409048] UDF-fs: Partition marked readonly; forcing readonly mount
[38779.498585] UDF-fs INFO UDF: Mounting volume 'KILLBILL_VOL1', timestamp 2004/03/01 20:51 (1ed4)
[38803.019171] end_request: I/O error, dev sr0, sector 522556
[38803.019179] __ratelimit: 11 callbacks suppressed
[38803.019182] Buffer I/O error on device sr0, logical block 130639
[38803.019188] Buffer I/O error on device sr0, logical block 130640
[38803.019191] Buffer I/O error on device sr0, logical block 130641
[38803.019193] Buffer I/O error on device sr0, logical block 130642
[38803.019195] Buffer I/O error on device sr0, logical block 130643
[38803.019198] Buffer I/O error on device sr0, logical block 130644
[38803.019202] Buffer I/O error on device sr0, logical block 130645
[38803.019205] Buffer I/O error on device sr0, logical block 130646
[38803.019208] Buffer I/O error on device sr0, logical block 130647
[38803.019211] Buffer I/O error on device sr0, logical block 130648
[38833.896034] ata4.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen
[38833.896044] ata4.00: cmd a0/00:00:00:00:00/00:00:00:00:00/a0 tag 0
[38833.896045] cdb 1b 00 00 00 02 00 00 00 00 00 00 00 00 00 00 00
[38833.896046] res 40/00:03:00:00:00/00:00:00:00:00/a0 Emask 0x4 (timeout)
[38833.896049] ata4.00: status: { DRDY }
[38836.525025] ata4: soft resetting link
[38836.737299] ata4.00: configured for UDMA/33
[38836.737323] ata4: EH complete
I've tried several DVDs and nothing works. Sometimes, the kernel panics as well; I assume it's because of this because these errors are always the most recent in logs after rebooting from the panic.
I'm having the same issue with trying to play DVDs. The drive worked perfectly about a week or two ago. (I don't use my DVD drive very often, so I am uncertain whether this problem occurred before or after updating to 8.10 RC.)
Relevant dmesg:
[38779.018260] end_request: I/O error, dev sr0, sector 15525888 00:00:00/ 00:00:00: 00:00/a0 tag 0 00:00:00/ 00:00:00: 00:00/a0 Emask 0x4 (timeout)
[38779.018267] Buffer I/O error on device sr0, logical block 3881472
[38779.019766] end_request: I/O error, dev sr0, sector 15525892
[38779.019771] Buffer I/O error on device sr0, logical block 3881473
[38779.021129] end_request: I/O error, dev sr0, sector 15525888
[38779.021132] Buffer I/O error on device sr0, logical block 3881472
[38779.022523] end_request: I/O error, dev sr0, sector 15525892
[38779.022528] Buffer I/O error on device sr0, logical block 3881473
[38779.024093] end_request: I/O error, dev sr0, sector 15526096
[38779.024098] Buffer I/O error on device sr0, logical block 3881524
[38779.025495] end_request: I/O error, dev sr0, sector 15526100
[38779.025501] Buffer I/O error on device sr0, logical block 3881525
[38779.026971] end_request: I/O error, dev sr0, sector 15526096
[38779.026975] Buffer I/O error on device sr0, logical block 3881524
[38779.028535] end_request: I/O error, dev sr0, sector 15526100
[38779.028540] Buffer I/O error on device sr0, logical block 3881525
[38779.029939] end_request: I/O error, dev sr0, sector 15526112
[38779.029943] Buffer I/O error on device sr0, logical block 3881528
[38779.031341] end_request: I/O error, dev sr0, sector 15526112
[38779.031347] Buffer I/O error on device sr0, logical block 3881528
[38779.033018] end_request: I/O error, dev sr0, sector 15526112
[38779.034738] end_request: I/O error, dev sr0, sector 15526112
[38779.036216] end_request: I/O error, dev sr0, sector 15526112
[38779.037612] end_request: I/O error, dev sr0, sector 15526112
[38779.039017] end_request: I/O error, dev sr0, sector 15526112
[38779.040996] end_request: I/O error, dev sr0, sector 15526048
[38779.043579] end_request: I/O error, dev sr0, sector 15526052
[38779.045640] end_request: I/O error, dev sr0, sector 15526104
[38779.047043] end_request: I/O error, dev sr0, sector 15526108
[38779.048436] end_request: I/O error, dev sr0, sector 15526112
[38779.049822] end_request: I/O error, dev sr0, sector 15526112
[38779.409048] UDF-fs: Partition marked readonly; forcing readonly mount
[38779.498585] UDF-fs INFO UDF: Mounting volume 'KILLBILL_VOL1', timestamp 2004/03/01 20:51 (1ed4)
[38803.019171] end_request: I/O error, dev sr0, sector 522556
[38803.019179] __ratelimit: 11 callbacks suppressed
[38803.019182] Buffer I/O error on device sr0, logical block 130639
[38803.019188] Buffer I/O error on device sr0, logical block 130640
[38803.019191] Buffer I/O error on device sr0, logical block 130641
[38803.019193] Buffer I/O error on device sr0, logical block 130642
[38803.019195] Buffer I/O error on device sr0, logical block 130643
[38803.019198] Buffer I/O error on device sr0, logical block 130644
[38803.019202] Buffer I/O error on device sr0, logical block 130645
[38803.019205] Buffer I/O error on device sr0, logical block 130646
[38803.019208] Buffer I/O error on device sr0, logical block 130647
[38803.019211] Buffer I/O error on device sr0, logical block 130648
[38833.896034] ata4.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen
[38833.896044] ata4.00: cmd a0/00:00:
[38833.896045] cdb 1b 00 00 00 02 00 00 00 00 00 00 00 00 00 00 00
[38833.896046] res 40/00:03:
[38833.896049] ata4.00: status: { DRDY }
[38836.525025] ata4: soft resetting link
[38836.737299] ata4.00: configured for UDMA/33
[38836.737323] ata4: EH complete
I've tried several DVDs and nothing works. Sometimes, the kernel panics as well; I assume it's because of this because these errors are always the most recent in logs after rebooting from the panic.