[Bug 1317491] Re: virsh blockcommit hangs at 100%

[Łukasz Zemczak]

I accepted the package to the -proposed pocket. The .20 version seems
ok, I also don't mind the removal of the changelog entries as those
never really existed in the main archives (it would only introduce
unwanted noise). But good thing that you mentioned the issues with .18
and .19 existing as otherwise I'd have to rise some eyebrows (since the
debdiff was really strange because of that).

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Title:
  virsh blockcommit hangs at 100%

Status in libvirt package in Ubuntu:
  Fix Released
Status in libvirt source package in Trusty:
  Fix Committed
Status in libvirt source package in Xenial:
  Fix Released
Status in libvirt source package in Yakkety:
  Fix Released
Status in libvirt source package in Zesty:
  Fix Released

Bug description:
  [Impact]

   * Virsh can't merge snapshots using the Block Commit technique
   * It is only possible to merge base to top image (not the opposite)
   * Combination of libvirt v1.2.2 and QEMU 2 is no good for Block Commit
   * After this fix, virsh won't hang on the opration, will cause an error

  [Test Case]

   * Workaround in Commit #10
   * QEMU is fine in Commit #11
   * Test Case in Commit #12

  [Regression Potential]

   * Block commit (Already broken) would continue not working
   * Its a small fix based on upstream fix (to block this function)

  [Other Info]
   
  ## Original Case Description

  virsh blockcommit hangs at 100% and nothing happens.

  I only found the following discussion:
  http://t358434.emulators-libvirt-user.emulatortalk.info/virsh-blockcommit-hangs-at-100-t358434.html

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