[LUG] USB with "target critical error dev sdb sector 8)

[Henry Bremridge <henry.bremridge@xxxxxxxxx>]

A memory stick has corrupted: I suspect by turning off the PC when in mid 
write. Not 100% sure. The output from dmesg is as follows

[ 4799.211435] usb 2-1.2: new full-speed USB device number 9 using ehci-pci
[ 4799.227712] hub 2-1:1.0: unable to enumerate USB device on port 2
[ 4799.467725] usb 2-1.2: new high-speed USB device number 10 using 
ehci-pci
[ 4799.561840] usb 2-1.2: New USB device found, idVendor=14cd, 
idProduct=121f
[ 4799.561848] usb 2-1.2: New USB device strings: Mfr=1, Product=3, 
SerialNumber=2
[ 4799.561853] usb 2-1.2: Product: Mass Storage Device
[ 4799.561856] usb 2-1.2: Manufacturer: Generic
[ 4799.561859] usb 2-1.2: SerialNumber: 121F20110712
[ 4799.562523] scsi8 : usb-storage 2-1.2:1.0
[ 4800.561673] scsi 8:0:0:0: Direct-Access     Mass     Storage Device   
1.00 PQ: 0 ANSI: 0 CCS
[ 4800.562348] sd 8:0:0:0: Attached scsi generic sg2 type 0
[ 4805.236645] sd 8:0:0:0: [sdb] 62333952 512-byte logical blocks: (31.9 
GB/29.7 GiB)
[ 4805.237249] sd 8:0:0:0: [sdb] Write Protect is off
[ 4805.237252] sd 8:0:0:0: [sdb] Mode Sense: 03 00 00 00
[ 4805.237877] sd 8:0:0:0: [sdb] No Caching mode page present
[ 4805.237884] sd 8:0:0:0: [sdb] Assuming drive cache: write through
[ 4805.240742] sd 8:0:0:0: [sdb] No Caching mode page present
[ 4805.240748] sd 8:0:0:0: [sdb] Assuming drive cache: write through
[ 4805.924670] sd 8:0:0:0: [sdb] Unhandled sense code
[ 4805.924680] sd 8:0:0:0: [sdb]  [ 4805.924685] Result: hostbyte=DID_OK 
driverbyte=DRIVER_SENSE
[ 4805.924689] sd 8:0:0:0: [sdb]  [ 4805.924693] Sense Key : Medium Error 
[current] [ 4805.924701] sd 8:0:0:0: [sdb]  [ 4805.924706] Add. Sense: 
Unrecovered read error
[ 4805.924712] sd 8:0:0:0: [sdb] CDB: [ 4805.924716] Read(10): 28 00 00 00 
00 00 00 00 08 00
[ 4805.924733] end_request: critical target error, dev sdb, sector 0
[ 4805.924740] quiet_error: 4 callbacks suppressed
[ 4805.924745] Buffer I/O error on device sdb, logical block 0
[ 4806.608726] sd 8:0:0:0: [sdb] Unhandled sense code
[ 4806.608734] sd 8:0:0:0: [sdb]  [ 4806.608738] Result: hostbyte=DID_OK 
driverbyte=DRIVER_SENSE
[ 4806.608741] sd 8:0:0:0: [sdb]  [ 4806.608744] Sense Key : Medium Error 
[current] [ 4806.608749] sd 8:0:0:0: [sdb]  [ 4806.608753] Add. Sense: 
Unrecovered read error
[ 4806.608756] sd 8:0:0:0: [sdb] CDB: [ 4806.608758] Read(10): 28 00 00 00 
00 00 00 00 08 00
[ 4806.608770] end_request: critical target error, dev sdb, sector 0

etc 

 4818.927119] sd 8:0:0:0: [sdb] CDB: [ 4818.927122] Read(10): 28 00 00 00 
 00 00 00 00 08 00
 [ 4818.927133] end_request: critical target error, dev sdb, sector 0
 [ 4818.927139] Buffer I/O error on device sdb, logical block 0
 [ 4819.611118] sd 8:0:0:0: [sdb] Unhandled sense code
 [ 4819.611126] sd 8:0:0:0: [sdb]  [ 4819.611130] Result: hostbyte=DID_OK 
 driverbyte=DRIVER_SENSE
 [ 4819.611133] sd 8:0:0:0: [sdb]  [ 4819.611136] Sense Key : Medium Error 
 [current] [ 4819.611141] sd 8:0:0:0: [sdb]  [ 4819.611144] Add. Sense: 
 Unrecovered read error
 [ 4819.611148] sd 8:0:0:0: [sdb] CDB: [ 4819.611150] Read(10): 28 00 00 00 
 00 08 00 00 08 00
 [ 4819.611161] end_request: critical target error, dev sdb, sector 8
 [ 4819.611168] Buffer I/O error on device sdb, logical block 1


The data is I hope backed up but apart from reformatting the drive is there 
any way of getting the data back



--
Henry
Communication not signed with an original manual signature or an appropriately 
verified digital signature is not binding.
Thu 27 Jun 07:28:11 BST 2013

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