Aug 16 12:18:07 ubuntu kernel: [17179888.080000] usb 4-2: new full speed USB dev ice using uhci_hcd and address 2
Aug 16 12:18:11 ubuntu kernel: [17179892.176000] scsi3 : SCSI emulation for USB Mass Storage devices
Aug 16 12:18:16 ubuntu kernel: [17179897.176000] Vendor: HP Model: CD-Writer+ 8200e Rev: 0001
Aug 16 12:18:16 ubuntu kernel: [17179897.176000] Type: Direct-Access ANSI SCSI revision: 00
Aug 16 12:18:22 ubuntu kernel: [17179903.096000] not responding...
Aug 16 12:18:22 ubuntu kernel: [17179903.276000] sdc : READ CAPACITY failed.
Aug 16 12:18:22 ubuntu kernel: [17179903.276000] sdc : status=1, message=00, host=0, driver=08
Aug 16 12:18:22 ubuntu kernel: [17179903.276000] sd: Current: sense key: Unit Attention
Aug 16 12:18:22 ubuntu kernel: [17179903.276000] Additional sense: Not ready to ready change, medium may have changed
Aug 16 12:18:22 ubuntu kernel: [17179903.276000] sdc: test WP failed, assume Write Enabled
Aug 16 12:18:28 ubuntu kernel: [17179909.256000] not responding...
Aug 16 12:18:28 ubuntu kernel: [17179909.436000] sdc : READ CAPACITY failed.
Aug 16 12:18:28 ubuntu kernel: [17179909.436000] sdc : status=1, message=00, host=0, driver=08
Aug 16 12:18:28 ubuntu kernel: [17179909.436000] sd: Current: sense key: Unit Attention
Aug 16 12:18:28 ubuntu kernel: [17179909.436000] Additional sense: Not ready to ready change, medium may have changed
Aug 16 12:18:28 ubuntu kernel: [17179909.436000] sdc: test WP failed, assume Write Enabled
Aug 16 12:18:34 ubuntu kernel: [17179915.356000] not responding...
Aug 16 12:18:35 ubuntu kernel: [17179915.536000] sdc : READ CAPACITY failed.
Aug 16 12:18:35 ubuntu kernel: [17179915.536000] sdc : status=1, message=00, host=0, driver=08
Aug 16 12:18:35 ubuntu kernel: [17179915.536000] sd: Current: sense key: Unit Attention
Aug 16 12:18:35 ubuntu kernel: [17179915.536000] Additional sense: Not ready to ready change, medium may have changed
Aug 16 12:18:35 ubuntu kernel: [17179915.536000] sdc: test WP failed, assume Write Enabled
Aug 16 12:18:35 ubuntu kernel: [17179915.536000] sdc:<3>Buffer I/O error on device sdc, logical block 0
Aug 16 12:18:35 ubuntu kernel: [17179915.536000] unable to read partition table
Aug 16 12:18:35 ubuntu kernel: [17179915.536000] sd 3:0:0:0: Attached scsi removable disk sdc
Aug 16 12:18:35 ubuntu kernel: [17179915.536000] sd 3:0:0:0: Attached scsi generic sg2 type 0