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[Devananda van der Veen <1275301@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

Since devstack patch 43d95084376913 landed, which installed and enabled
libguestfs on Ubuntu, several tempest tests in the ironic and neutron
pipelines have been failing with "Error mounting
/opt/stack/data/nova/instances/{UUID}/disk with libguestfs". This seems
to be happening because Nova is trying to use file injection with
libguestfs instead of nbd now.

Traceback:
  http://paste.openstack.org/show/62297/

Code:
  https://git.openstack.org/cgit/openstack/nova/tree/nova/virt/libvirt/driver.py#n2564

Links to a few failures:
  http://logs.openstack.org/96/66796/10/check/check-tempest-dsvm-ironic-nv/88c3fff/logs/screen-n-cpu.txt.gz?level=TRACE
  http://logs.openstack.org/98/69798/2/check/check-tempest-dsvm-ironic-nv/103f6d8/logs/screen-n-cpu.txt.gz?level=TRACE

** Affects: nova
     Importance: Undecided
         Status: New

** Summary changed:

- Error mounting libguestfs
+ Error during file injection if libguestfs is installed

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https://bugs.launchpad.net/bugs/1275301

Title:
  Error during file injection if libguestfs is installed

Status in OpenStack Compute (Nova):
  New

Bug description:
  Since devstack patch 43d95084376913 landed, which installed and
  enabled libguestfs on Ubuntu, several tempest tests in the ironic and
  neutron pipelines have been failing with "Error mounting
  /opt/stack/data/nova/instances/{UUID}/disk with libguestfs". This
  seems to be happening because Nova is trying to use file injection
  with libguestfs instead of nbd now.

  Traceback:
    http://paste.openstack.org/show/62297/

  Code:
    https://git.openstack.org/cgit/openstack/nova/tree/nova/virt/libvirt/driver.py#n2564

  Links to a few failures:
    http://logs.openstack.org/96/66796/10/check/check-tempest-dsvm-ironic-nv/88c3fff/logs/screen-n-cpu.txt.gz?level=TRACE
    http://logs.openstack.org/98/69798/2/check/check-tempest-dsvm-ironic-nv/103f6d8/logs/screen-n-cpu.txt.gz?level=TRACE

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