Really Big flash drive, taking forever to respond

frieza · 12-20-2012, 07:57 PM

i just obtained a 256G thumberive, and at present i don't have any reason to believe it is defective, but trying to mount it or even run fdisk on it takes forever

fdisk -l output

Code:

   Device Boot      Start         End      Blocks   Id  System
/dev/sdj1            3336   524287999   262142332    b  W95 FAT32

dmesg output

Code:

[ 6088.033023] sd 12:0:0:0: [sdj] Media Changed
[ 6088.033029] sd 12:0:0:0: [sdj]  
[ 6088.033031] Result: hostbyte=DID_ABORT driverbyte=DRIVER_SENSE
[ 6088.033034] sd 12:0:0:0: [sdj]  
[ 6088.033035] Sense Key : Unit Attention [current] 
[ 6088.033039] Info fld=0x0
[ 6088.033040] sd 12:0:0:0: [sdj]  
[ 6088.033044] Add. Sense: Not ready to ready change, medium may have changed
[ 6088.033046] sd 12:0:0:0: [sdj] CDB: 
[ 6088.033047] Read(10): 28 00 1f 3f ff f8 00 00 01 00
[ 6088.033054] end_request: I/O error, dev sdj, sector 524287992
[ 6088.033058] Buffer I/O error on device sdj1, logical block 65535582
[ 6088.071015] sd 12:0:0:0: [sdj] No Caching mode page present
[ 6088.071024] sd 12:0:0:0: [sdj] Assuming drive cache: write through
[ 6088.100994] sd 12:0:0:0: [sdj] No Caching mode page present
[ 6088.101004] sd 12:0:0:0: [sdj] Assuming drive cache: write through
[ 6088.176949]  sdj: sdj1
[ 6118.761340] usb 3-1: reset full-speed USB device number 3 using ohci_hcd
[ 6149.715823] usb 3-1: reset full-speed USB device number 3 using ohci_hcd

lsusb -vvv

Code:

Bus 003 Device 003: ID 0000:7777  
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               2.00
  bDeviceClass            0 (Defined at Interface level)
  bDeviceSubClass         0 
  bDeviceProtocol         0 
  bMaxPacketSize0        64
  idVendor           0x0000 
  idProduct          0x7777 
  bcdDevice            1.03
  iManufacturer           1 
  iProduct                2 
  iSerial                 3 ABC55889
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength           32
    bNumInterfaces          1
    bConfigurationValue     1
    iConfiguration          0 
    bmAttributes         0x80
      (Bus Powered)
    MaxPower              100mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           2
      bInterfaceClass         8 Mass Storage
      bInterfaceSubClass      6 SCSI
      bInterfaceProtocol     80 Bulk (Zip)
      iInterface              0 
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x01  EP 1 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0040  1x 64 bytes
        bInterval               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x82  EP 2 IN
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0040  1x 64 bytes
        bInterval               0
Device Qualifier (for other device speed):
  bLength                10
  bDescriptorType         6
  bcdUSB               2.00
  bDeviceClass            0 (Defined at Interface level)
  bDeviceSubClass         0 
  bDeviceProtocol         0 
  bMaxPacketSize0        64
  bNumConfigurations      1
Device Status:     0x0000
  (Bus Powered)

amani · 12-20-2012, 08:08 PM

The fake ones will have about 256MB of storage and simply overwrite data upto 256 GB.

But yours is defective :

"
[ 6088.033047] Read(10): 28 00 1f 3f ff f8 00 00 01 00
[ 6088.033054] end_request: I/O error, dev sdj, sector 52428799"

jefro · 12-20-2012, 08:20 PM

This looks wrong also " 3336 524287999 262142332 b W95 FAT32"