Kernel bug

[113488.316180] usb 2-2: new high-speed USB device number 8 using ehci_hcd
[113488.452329] usb 2-2: New USB device found, idVendor=0951, idProduct=1607
[113488.452344] usb 2-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[113488.452355] usb 2-2: Product: DataTraveler 2.0
[113488.452386] usb 2-2: Manufacturer: Kingston
[113488.452394] usb 2-2: SerialNumber: 0014780F9951F941B5820298
[113488.454514] scsi13 : usb-storage 2-2:1.0
[113489.455218] scsi 13:0:0:0: Direct-Access     Kingston DataTraveler 2.0 1.00 PQ: 0 ANSI: 2
[113489.457111] sd 13:0:0:0: Attached scsi generic sg3 type 0
[113489.461872] sd 13:0:0:0: [sdc] 15654848 512-byte logical blocks: (8.01 GB/7.46 GiB)
[113489.462805] sd 13:0:0:0: [sdc] Write Protect is off
[113489.462817] sd 13:0:0:0: [sdc] Mode Sense: 16 07 09 51
[113489.464468] sd 13:0:0:0: [sdc] Incomplete mode parameter data
[113489.464481] sd 13:0:0:0: [sdc] Assuming drive cache: write through
[113489.470851] sd 13:0:0:0: [sdc] Incomplete mode parameter data
[113489.470865] sd 13:0:0:0: [sdc] Assuming drive cache: write through
[113489.471668]  sdc: sdc1
[113489.474710] sd 13:0:0:0: [sdc] Incomplete mode parameter data
[113489.474724] sd 13:0:0:0: [sdc] Assuming drive cache: write through
[113489.474734] sd 13:0:0:0: [sdc] Attached SCSI removable disk
[113494.643869] sd 9:0:0:0: [sdb] 15564800 512-byte logical blocks: (7.96 GB/7.42 GiB)
[113494.643944] sd 9:0:0:0: [sdb] Cache data unavailable
[113494.643950] sd 9:0:0:0: [sdb] Assuming drive cache: write through
[113494.646260] sd 9:0:0:0: [sdb] Cache data unavailable
[113494.646269] sd 9:0:0:0: [sdb] Assuming drive cache: write through
[113494.648997]  sdb: sdb1
[113539.435048] ehci_hcd 0000:00:13.2: force halt; handshake ffffc90000c78424 00004000 00000000 -> -110
[113539.435061] ehci_hcd 0000:00:13.2: HC died; cleaning up
[113539.435171] usb 2-2: USB disconnect, device number 8
[113539.520279] sd 13:0:0:0: [sdc] Unhandled error code
[113539.520290] sd 13:0:0:0: [sdc]  Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK
[113539.520299] sd 13:0:0:0: [sdc] CDB: Write(10): 2a 00 00 00 00 00 00 00 f0 00
[113539.520316] end_request: I/O error, dev sdc, sector 0
[113539.520327] quiet_error: 67879 callbacks suppressed
[113539.520333] Buffer I/O error on device sdc, logical block 0
[113539.520338] lost page write due to I/O error on sdc
[113539.520351] Buffer I/O error on device sdc, logical block 1
[113539.520356] lost page write due to I/O error on sdc
[113539.520362] Buffer I/O error on device sdc, logical block 2
[113539.520367] lost page write due to I/O error on sdc
[113539.520373] Buffer I/O error on device sdc, logical block 3
[113539.520377] lost page write due to I/O error on sdc
[113539.520384] Buffer I/O error on device sdc, logical block 4
[113539.520388] lost page write due to I/O error on sdc
[113539.520394] Buffer I/O error on device sdc, logical block 5
[113539.520399] lost page write due to I/O error on sdc
[113539.520405] Buffer I/O error on device sdc, logical block 6
[113539.520409] lost page write due to I/O error on sdc
[113539.520415] Buffer I/O error on device sdc, logical block 7
[113539.520420] lost page write due to I/O error on sdc
[113539.520426] Buffer I/O error on device sdc, logical block 8
[113539.520430] lost page write due to I/O error on sdc
[113539.520436] Buffer I/O error on device sdc, logical block 9
[113539.520440] lost page write due to I/O error on sdc
[113539.532000] sd 13:0:0:0: [sdc] Unhandled error code
[113539.532020] sd 13:0:0:0: [sdc]  Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK
[113539.532029] sd 13:0:0:0: [sdc] CDB: Write(10): 2a 00 00 00 00 f0 00 00 f0 00
[113539.532046] end_request: I/O error, dev sdc, sector 240
[113539.797398] usb 2-3: USB disconnect, device number 2
[113539.830053] usb 2-5: USB disconnect, device number 3