Bug 459534

Description of problem:
When attaching a certain USB mass storage device the following appears in the kernel log:

kernel: usb 1-1: new high speed USB device using ehci_hcd and address 5
kernel: usb 1-1: configuration #1 chosen from 1 choice
kernel: scsi7 : SCSI emulation for USB Mass Storage devices
kernel: usb 1-1: New USB device found, idVendor=0dc4, idProduct=0073
kernel: usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
kernel: usb 1-1: Product: ATAPI-6 Bridge Controller
kernel: usb 1-1: Manufacturer: Prolific Technology Inc.
kernel: usb 1-1: SerialNumber: 9C0195
kernel: scsi 7:0:0:0: Direct-Access     SAMSUNG  HD400LD          WQ10 PQ: 0 ANSI: 0
kernel: sd 7:0:0:0: [sdb] 781422769 512-byte hardware sectors (400088 MB)
kernel: sd 7:0:0:0: [sdb] Write Protect is off
kernel: sd 7:0:0:0: [sdb] Assuming drive cache: write through
kernel: sd 7:0:0:0: [sdb] 781422769 512-byte hardware sectors (400088 MB)
kernel: sd 7:0:0:0: [sdb] Write Protect is off
kernel: sd 7:0:0:0: [sdb] Assuming drive cache: write through
kernel: sdb: sdb1
kernel: sd 7:0:0:0: [sdb] Attached SCSI disk
kernel: sd 7:0:0:0: Attached scsi generic sg1 type 0
kernel: sd 7:0:0:0: [sdb] Sense Key : No Sense [current]
kernel: sd 7:0:0:0: [sdb] Add. Sense: No additional sense information

The last two lines are then repeated over and over again at high speed.
When disconnected the following appears:

kernel: sd 7:0:0:0: [sdb] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK,SUGGEST_OK
kernel: end_request: I/O error, dev sdb, sector 781422768
kernel: __ratelimit: 62 callbacks suppressed
kernel: Buffer I/O error on device sdb, logical block 781422768
kernel: usb 1-1: USB disconnect, address 5
kernel: sd 7:0:0:0: [sdb] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK,SUGGEST_OK
kernel: end_request: I/O error, dev sdb, sector 781422768
kernel: Buffer I/O error on device sdb, logical block 781422768
kernel: Buffer I/O error on device sdb, logical block 781422761
kernel: Buffer I/O error on device sdb, logical block 781422762
kernel: Buffer I/O error on device sdb, logical block 781422763
kernel: Buffer I/O error on device sdb, logical block 781422764
kernel: Buffer I/O error on device sdb, logical block 781422765
kernel: Buffer I/O error on device sdb, logical block 781422766
kernel: Buffer I/O error on device sdb, logical block 781422767
kernel: sd 7:0:0:0: [sdb] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK,SUGGEST_OK
kernel: end_request: I/O error, dev sdb, sector 781422760
kernel: Buffer I/O error on device sdb, logical block 781422760

Only one of my USB devices behaves like this, others work fine.
This one works fine with earlier kernels of the F10-devel tree.

Version-Release number of selected component (if applicable):
kernel-PAE-2.6.27-0.244.rc2.git1.fc10.i686

How reproducible:
Always

Steps to Reproduce:
1. Plug in USB device
2.
3.
  
Actual results:
Kernel messages above

Expected results:
a usable device

Additional info: