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[Richard Huddie <richard.huddie@xxxxxxxxxxxxx>]

I can still reproduce the issue on 14.09-proposed #56. I am attaching some test data which I am copying to Pictures folder.
So the exact steps are:
1) Connect krillin to MTP host over USB
2) Copy test data "folder1" to Pictures folder
3) Remove USB cable
4) Re-insert USB cable
5) Delete folder1 from Pictures

At this point the delete will fail and the device becomes un-responsive.

** Attachment added: "test_data.tar.gz"
   https://bugs.launchpad.net/ubuntu/+source/mtp/+bug/1369632/+attachment/4212297/+files/test_data.tar.gz

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https://bugs.launchpad.net/bugs/1369632

Title:
  After disconnecting and reconnecting device to MTP host it is not
  possible to delete a folder using MTP

Status in “mtp” package in Ubuntu:
  Incomplete

Bug description:
  ENVIRONMENT:
  Device: ubuntu-rtm/14.09-proposed build 40
  Desktop: Windows 8.1 / Ubuntu

  SUMMARY:
  After disconnecting and reconnecting device to MTP host it is not possible to delete a folder using MTP

  STEPS:
  1) Connect Ubuntu device to host PC over USB
  2) Copy some music content to the music folder on MTP device including some folder structure
  3) Eject the Ubuntu device's USB connection
  4) Re-insert Ubuntu device USB
  5) Browse to MTP Music folder on device
  6) Try to delete some of the music folders that were just added

  EXPECTED RESULT:

  The content should be deleted successfully.

  ACTUAL RESULT:

  After a delay of about 30 seconds Ubuntu presents error:
  "libmtp error: could not delete object".
  It is then not possible to copy any content to or from the device.

  Windows also fails to delete the content with error stating that
  device has been disconnected.

  Note that it is possible to delete files when the device is re-
  connected. It is when deleting a parent folder that the problem
  occurs.

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