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[Matt Riedemann <mriedem@xxxxxxxxxx>]

** Also affects: nova/juno
   Importance: Undecided
       Status: New

** Also affects: nova/kilo
   Importance: Undecided
       Status: New

** Changed in: nova/juno
   Importance: Undecided => High

** Changed in: nova/kilo
   Importance: Undecided => High

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https://bugs.launchpad.net/bugs/1440762

Title:
  Rebuild an instance with attached volume fails

Status in OpenStack Compute (nova):
  In Progress
Status in OpenStack Compute (nova) juno series:
  New
Status in OpenStack Compute (nova) kilo series:
  New
Status in openstack-ansible:
  New

Bug description:
  When trying to rebuild an instance with attached volume, it fails with
  the errors:

  2015-02-04 08:41:27.477 22000 TRACE oslo.messaging.rpc.dispatcher libvirtError: Failed to terminate process 22913 with SIGKILL: Device or resource busy
  2015-02-04 08:41:27.477 22000 TRACE oslo.messaging.rpc.dispatcher
  <180>Feb 4 08:43:12 node-2 nova-compute Periodic task is updating the host stats, it is trying to get disk info for instance-00000003, but the backing volume block device was removed by concurrent operations such as resize. Error: No volume Block Device Mapping at path: /dev/disk/by-path/ip-192.168.0.4:3260-iscsi-iqn.2010-10.org.openstack:volume-82ba5653-3e07-4f0f-b44d-a946f4dedde9-lun-1
  <182>Feb 4 08:43:13 node-2 nova-compute VM Stopped (Lifecycle Event)

  The full log of rebuild process is here:
  http://paste.openstack.org/show/166892/

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