[17180150.156000] usb 2-1: new full speed USB device using ohci_hcd and address2
[17180150.304000] usb 2-1: not running at top speed; connect to a high speed hub
[17180150.336000] scsi0 : SCSI emulation for USB Mass Storage devices
[17180150.336000] usb-storage: device found at 2
[17180150.336000] usb-storage: waiting for device to settle before scanning
[17180155.340000]   Vendor:           Model: PENTADRIVE        Rev: PMAP
[17180155.340000]   Type:   Direct-Access                      ANSI SCSI revision: 00
[17180155.496000] SCSI device sda: 4096 512-byte hdwr sectors (2 MB)
[17180155.500000] sda: Write Protect is off
[17180155.500000] sda: Mode Sense: 23 00 00 00
[17180155.500000] sda: assuming drive cache: write through
[17180155.524000] SCSI device sda: 4096 512-byte hdwr sectors (2 MB)
[17180155.532000] sda: Write Protect is off
[17180155.532000] sda: Mode Sense: 23 00 00 00
[17180155.532000] sda: assuming drive cache: write through
[17180155.532000]  sda:<6>usb 2-1: reset full speed USB device using ohci_hcd and address 2
[17180188.792000] usb 2-1: device descriptor read/64, error -110
[17180204.024000] usb 2-1: device descriptor read/64, error -110
[17180204.256000] usb 2-1: reset full speed USB device using ohci_hcd and address 2
[17180207.384000] usb 2-1: device descriptor read/64, error -110
[17180222.616000] usb 2-1: device descriptor read/64, error -110
[17180222.848000] usb 2-1: reset full speed USB device using ohci_hcd and address 2
[17180233.256000] usb 2-1: device not accepting address 2, error -110
[17180233.384000] usb 2-1: reset full speed USB device using ohci_hcd and address 2
[17180243.792000] usb 2-1: device not accepting address 2, error -110
[17180243.792000] usb 2-1: USB disconnect, address 2
[17180243.792000] scsi: Device offlined - not ready after error recovery: host 0 channel 0 id 0 lun 0
[17180243.792000] sd 0:0:0:0: SCSI error: return code = 0x50000
[17180243.792000] end_request: I/O error, dev sda, sector 0
[17180243.792000] Buffer I/O error on device sda, logical block 0
[17180243.792000] scsi0 (0:0): rejecting I/O to offline device
[17180243.792000] Buffer I/O error on device sda, logical block 0
[17180243.792000]  unable to read partition table
[17180243.792000] Attached scsi removable disk sda at scsi0, channel 0, id 0, lun 0
[17180243.820000] usb-storage: device scan complete
[17180243.948000] usb 2-1: new full speed USB device using ohci_hcd and address3
[17180247.076000] usb 2-1: device descriptor read/64, error -110
[17180262.308000] usb 2-1: device descriptor read/64, error -110
[17180262.540000] usb 2-1: new full speed USB device using ohci_hcd and address4
[17180265.668000] usb 2-1: device descriptor read/64, error -110
[17180280.900000] usb 2-1: device descriptor read/64, error -110
[17180281.132000] usb 2-1: new full speed USB device using ohci_hcd and address5
[17180291.540000] usb 2-1: device not accepting address 5, error -110
[17180291.668000] usb 2-1: new full speed USB device using ohci_hcd and address6
[17180302.076000] usb 2-1: device not accepting address 6, error -110
 [17180150.156000] usb 2-1: new full speed USB device using ohci_hcd and address2
[17180150.304000] usb 2-1: not running at top speed; connect to a high speed hub
[17180150.336000] scsi0 : SCSI emulation for USB Mass Storage devices
[17180150.336000] usb-storage: device found at 2
[17180150.336000] usb-storage: waiting for device to settle before scanning
[17180155.340000]   Vendor:           Model: PENTADRIVE        Rev: PMAP
[17180155.340000]   Type:   Direct-Access                      ANSI SCSI revision: 00
[17180155.496000] SCSI device sda: 4096 512-byte hdwr sectors (2 MB)
[17180155.500000] sda: Write Protect is off
[17180155.500000] sda: Mode Sense: 23 00 00 00
[17180155.500000] sda: assuming drive cache: write through
[17180155.524000] SCSI device sda: 4096 512-byte hdwr sectors (2 MB)
[17180155.532000] sda: Write Protect is off
[17180155.532000] sda: Mode Sense: 23 00 00 00
[17180155.532000] sda: assuming drive cache: write through
[17180155.532000]  sda:<6>usb 2-1: reset full speed USB device using ohci_hcd and address 2
[17180188.792000] usb 2-1: device descriptor read/64, error -110
[17180204.024000] usb 2-1: device descriptor read/64, error -110
[17180204.256000] usb 2-1: reset full speed USB device using ohci_hcd and address 2
[17180207.384000] usb 2-1: device descriptor read/64, error -110
[17180222.616000] usb 2-1: device descriptor read/64, error -110
[17180222.848000] usb 2-1: reset full speed USB device using ohci_hcd and address 2
[17180233.256000] usb 2-1: device not accepting address 2, error -110
[17180233.384000] usb 2-1: reset full speed USB device using ohci_hcd and address 2
[17180243.792000] usb 2-1: device not accepting address 2, error -110
[17180243.792000] usb 2-1: USB disconnect, address 2
[17180243.792000] scsi: Device offlined - not ready after error recovery: host 0 channel 0 id 0 lun 0
[17180243.792000] sd 0:0:0:0: SCSI error: return code = 0x50000
[17180243.792000] end_request: I/O error, dev sda, sector 0
[17180243.792000] Buffer I/O error on device sda, logical block 0
[17180243.792000] scsi0 (0:0): rejecting I/O to offline device
[17180243.792000] Buffer I/O error on device sda, logical block 0
[17180243.792000]  unable to read partition table
[17180243.792000] Attached scsi removable disk sda at scsi0, channel 0, id 0, lun 0
[17180243.820000] usb-storage: device scan complete
[17180243.948000] usb 2-1: new full speed USB device using ohci_hcd and address3
[17180247.076000] usb 2-1: device descriptor read/64, error -110
[17180262.308000] usb 2-1: device descriptor read/64, error -110
[17180262.540000] usb 2-1: new full speed USB device using ohci_hcd and address4
[17180265.668000] usb 2-1: device descriptor read/64, error -110
[17180280.900000] usb 2-1: device descriptor read/64, error -110
[17180281.132000] usb 2-1: new full speed USB device using ohci_hcd and address5
[17180291.540000] usb 2-1: device not accepting address 5, error -110
[17180291.668000] usb 2-1: new full speed USB device using ohci_hcd and address6
[17180302.076000] usb 2-1: device not accepting address 6, error -110