After a recent update I rebooted and could no longer mount a video bluray disc. It doesn't have AACS and was working fine before.
The error repeats but here's a snippet: Jul 11 20:41:52 kernel: sr 3:0:0:0: [sr0] tag#19 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE Jul 11 20:41:52 kernel: sr 3:0:0:0: [sr0] tag#19 Sense Key : Medium Error [deferred] Jul 11 20:41:52 kernel: sr 3:0:0:0: [sr0] tag#19 Add. Sense: L-EC uncorrectable error Jul 11 20:41:52 kernel: sr 3:0:0:0: [sr0] tag#19 CDB: Read(10) 28 00 00 b7 6a fc 00 00 02 00 Jul 11 20:41:52 kernel: print_req_error: I/O error, dev sr0, sector 48081904 flags 80700 Jul 11 20:42:00 kernel: sr 3:0:0:0: [sr0] tag#21 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE Jul 11 20:42:00 kernel: sr 3:0:0:0: [sr0] tag#21 Sense Key : Medium Error [deferred] Jul 11 20:42:00 kernel: sr 3:0:0:0: [sr0] tag#21 Add. Sense: L-EC uncorrectable error Jul 11 20:42:00 kernel: sr 3:0:0:0: [sr0] tag#21 CDB: Read(10) 28 00 00 b7 6a fc 00 00 02 00 Jul 11 20:42:00 kernel: print_req_error: I/O error, dev sr0, sector 48081904 flags 0 Jul 11 20:42:00 kernel: Buffer I/O error on dev sr0, logical block 6010238, async page read Jul 11 20:42:09 kernel: sr 3:0:0:0: [sr0] tag#23 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE Jul 11 20:42:09 kernel: sr 3:0:0:0: [sr0] tag#23 Sense Key : Medium Error [deferred] Jul 11 20:42:09 kernel: sr 3:0:0:0: [sr0] tag#23 Add. Sense: L-EC uncorrectable error Jul 11 20:42:09 kernel: sr 3:0:0:0: [sr0] tag#23 CDB: Read(10) 28 00 00 00 00 00 00 00 02 00 Jul 11 20:42:09 kernel: print_req_error: I/O error, dev sr0, sector 0 flags 80700 Jul 11 20:42:17 kernel: sr 3:0:0:0: [sr0] tag#24 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE Jul 11 20:42:17 kernel: sr 3:0:0:0: [sr0] tag#24 Sense Key : Medium Error [deferred] Jul 11 20:42:17 kernel: sr 3:0:0:0: [sr0] tag#24 Add. Sense: L-EC uncorrectable error Jul 11 20:42:17 kernel: sr 3:0:0:0: [sr0] tag#24 CDB: Read(10) 28 00 00 00 00 00 00 00 02 00 Jul 11 20:42:17 kernel: print_req_error: I/O error, dev sr0, sector 0 flags 0 Jul 11 20:42:17 kernel: Buffer I/O error on dev sr0, logical block 0, async page read Jul 11 20:42:26 kernel: sr 3:0:0:0: [sr0] tag#26 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE Jul 11 20:42:26 kernel: sr 3:0:0:0: [sr0] tag#26 Sense Key : Medium Error [deferred] Jul 11 20:42:26 kernel: sr 3:0:0:0: [sr0] tag#26 Add. Sense: L-EC uncorrectable error Jul 11 20:42:26 kernel: sr 3:0:0:0: [sr0] tag#26 CDB: Read(10) 28 00 00 00 00 00 00 00 02 00 Jul 11 20:42:26 kernel: print_req_error: I/O error, dev sr0, sector 0 flags 0 Jul 11 20:42:26 kernel: Buffer I/O error on dev sr0, logical block 0, async page read Jul 11 20:42:34 kernel: sr 3:0:0:0: [sr0] tag#28 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE Jul 11 20:42:34 kernel: sr 3:0:0:0: [sr0] tag#28 Sense Key : Medium Error [deferred] Jul 11 20:42:34 kernel: sr 3:0:0:0: [sr0] tag#28 Add. Sense: L-EC uncorrectable error Jul 11 20:42:34 kernel: sr 3:0:0:0: [sr0] tag#28 CDB: Read(10) 28 00 00 00 00 00 00 00 02 00 Jul 11 20:42:34 kernel: print_req_error: I/O error, dev sr0, sector 0 flags 0 Jul 11 20:42:34 kernel: Buffer I/O error on dev sr0, logical block 0, async page read Jul 11 20:42:43 kernel: sr 3:0:0:0: [sr0] tag#30 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE Jul 11 20:42:43 kernel: sr 3:0:0:0: [sr0] tag#30 Sense Key : Medium Error [deferred] Jul 11 20:42:43 kernel: sr 3:0:0:0: [sr0] tag#30 Add. Sense: L-EC uncorrectable error Jul 11 20:42:43 kernel: sr 3:0:0:0: [sr0] tag#30 CDB: Read(10) 28 00 00 00 00 00 00 00 02 00 Jul 11 20:42:43 kernel: print_req_error: I/O error, dev sr0, sector 0 flags 0 Jul 11 20:42:43 kernel: Buffer I/O error on dev sr0, logical block 0, async page read When the disc is inserted the drive chomps on it for a bit and then says there's no media. I finally got it to read in 5.1.15 but couldn't get it to work in 5.1.16, but that could be random luck. It worked consistently in 5.1.11. Interestingly when I had the disc in during the reboot it held up system boot because udev was waiting for all devices to be detected or something like that and in the log I can find this: Jul 11 20:42:44 systemd-udevd[774]: sr0: Worker [790] processing SEQNUM=3076 is taking a long time So what changed? Thanks, Richard
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