dmesg cleared, plugging in the phone:

[ 1597.136136] usb 2-1: new full speed USB device using uhci_hcd and address 3
[ 1597.611641] usb 2-1: configuration #2 chosen from 1 choice
[ 1597.619891] scsi3 : SCSI emulation for USB Mass Storage devices
[ 1597.622476] usb-storage: device found at 3
[ 1597.622485] usb-storage: waiting for device to settle before scanning
[ 1602.622299] usb-storage: device scan complete
[ 1602.625297] scsi 3:0:0:0: Direct-Access     Sony Eri Memory Stick        0 PQ: 0 ANSI: 0
[ 1602.628617] scsi 3:0:0:1: Direct-Access     Sony Eri Memory Stick        0 PQ: 0 ANSI: 0
[ 1602.683559] sd 3:0:0:0: [sdc] 120093 512-byte hardware sectors: (61.4 MB/58.6 MiB)
[ 1602.692218] sd 3:0:0:0: [sdc] Test WP failed, assume Write Enabled
[ 1602.692231] sd 3:0:0:0: [sdc] Assuming drive cache: write through
[ 1602.704211] sd 3:0:0:0: [sdc] 120093 512-byte hardware sectors: (61.4 MB/58.6 MiB)
[ 1602.711180] sd 3:0:0:0: [sdc] Test WP failed, assume Write Enabled
[ 1602.711192] sd 3:0:0:0: [sdc] Assuming drive cache: write through
[ 1602.711208]  sdc: sdc1
[ 1602.723325] sd 3:0:0:0: [sdc] Attached SCSI removable disk
[ 1602.723471] sd 3:0:0:0: Attached scsi generic sg3 type 0
[ 1602.728250] sd 3:0:0:1: [sdd] 3995649 512-byte hardware sectors: (2.04 GB/1.90 GiB)
[ 1602.735422] sd 3:0:0:1: [sdd] Test WP failed, assume Write Enabled
[ 1602.735430] sd 3:0:0:1: [sdd] Assuming drive cache: write through
[ 1602.745287] sd 3:0:0:1: [sdd] 3995649 512-byte hardware sectors: (2.04 GB/1.90 GiB)
[ 1602.752192] sd 3:0:0:1: [sdd] Test WP failed, assume Write Enabled
[ 1602.752201] sd 3:0:0:1: [sdd] Assuming drive cache: write through
[ 1602.752214]  sdd: sdd1
[ 1602.766350] sd 3:0:0:1: [sdd] Attached SCSI removable disk
[ 1602.766488] sd 3:0:0:1: Attached scsi generic sg4 type 0
[ 1603.224162] sd 3:0:0:0: [sdc] Sense Key : No Sense [current] 
[ 1603.224177] sd 3:0:0:0: [sdc] Add. Sense: No additional sense information
[ 1603.232153] sd 3:0:0:1: [sdd] Sense Key : No Sense [current] 
[ 1603.232167] sd 3:0:0:1: [sdd] Add. Sense: No additional sense information
[ 1603.322091] sd 3:0:0:0: [sdc] Sense Key : No Sense [current] 
[ 1603.322106] sd 3:0:0:0: [sdc] Add. Sense: No additional sense information

snipped many lines

[ 1611.780683] sd 3:0:0:1: [sdd] Sense Key : No Sense [current] 
[ 1611.780697] sd 3:0:0:1: [sdd] Add. Sense: No additional sense information
[ 1611.871728] sd 3:0:0:0: [sdc] Sense Key : No Sense [current] 
[ 1611.871743] sd 3:0:0:0: [sdc] Add. Sense: No additional sense information
[ 1611.878667] sd 3:0:0:1: [sdd] Sense Key : No Sense [current] 
[ 1611.878684] sd 3:0:0:1: [sdd] Add. Sense: No additional sense information

phone unplugged

[ 1612.016200] sd 3:0:0:0: [sdc] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK,SUGGEST_OK
[ 1612.016219] end_request: I/O error, dev sdc, sector 120072
[ 1612.016232] Buffer I/O error on device sdc, logical block 120072
[ 1612.016243] Buffer I/O error on device sdc, logical block 120073
[ 1612.016250] Buffer I/O error on device sdc, logical block 120074
[ 1612.016256] Buffer I/O error on device sdc, logical block 120075
[ 1612.016263] Buffer I/O error on device sdc, logical block 120076
[ 1612.016269] Buffer I/O error on device sdc, logical block 120077
[ 1612.016276] Buffer I/O error on device sdc, logical block 120078
[ 1612.016282] Buffer I/O error on device sdc, logical block 120079
[ 1612.016389] sd 3:0:0:1: [sdd] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK,SUGGEST_OK
[ 1612.016399] end_request: I/O error, dev sdd, sector 3995648
[ 1612.016406] Buffer I/O error on device sdd, logical block 3995648
[ 1612.016786] sd 3:0:0:0: [sdc] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK,SUGGEST_OK
[ 1612.016796] end_request: I/O error, dev sdc, sector 120072
[ 1612.016803] Buffer I/O error on device sdc, logical block 120072
[ 1612.017226] sd 3:0:0:1: [sdd] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK,SUGGEST_OK
[ 1612.017236] end_request: I/O error, dev sdd, sector 32
[ 1612.018971] usb 2-1: USB disconnect, address 3
[ 1612.029464] scsi 3:0:0:1: [sdd] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK,SUGGEST_OK
[ 1612.029478] end_request: I/O error, dev sdd, sector 3995648
[ 1612.029521] scsi 3:0:0:0: [sdc] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK,SUGGEST_OK
[ 1612.029530] end_request: I/O error, dev sdc, sector 120088
[ 1612.029576] scsi 3:0:0:0: [sdc] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK,SUGGEST_OK
[ 1612.029585] end_request: I/O error, dev sdc, sector 32
[ 1612.031020] scsi 3:0:0:0: rejecting I/O to dead device
[ 1612.033018] scsi 3:0:0:1: rejecting I/O to dead device