[Bugme-new] [Bug 10655] New: Plugging in USB scanner sometimes resets USB HDD

bugme-daemon at bugzilla.kernel.org bugme-daemon at bugzilla.kernel.org
Thu May 8 22:18:57 PDT 2008


http://bugzilla.kernel.org/show_bug.cgi?id=10655

           Summary: Plugging in USB scanner sometimes resets USB HDD
           Product: Drivers
           Version: 2.5
     KernelVersion: 2.6.25.1
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: USB
        AssignedTo: greg at kroah.com
        ReportedBy: peter.klotz at aon.at


Latest working kernel version: ?
Earliest failing kernel version: ?
Distribution: Ubuntu 8.04
Hardware Environment: Acer TravelMate 662
Software Environment: Gnome
Problem Description: Sometimes when I plug a USB scanner into my laptop it
resets an already attached (and used) USB harddisk.

Steps to reproduce:
* Start USB HDD (self powered)
* Start a "badblocks -v <DEVICE>" on this harddisk
* Plug in and out USB scanner (host powered) several times
* Occasionally a USB reset occurs on the HDD. The HDD changes its device and
badblocks returns errors from this point on.


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