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[Matt Riedemann <mriedem.os@xxxxxxxxx>]

** Changed in: nova
     Assignee: Matt Riedemann (mriedem) => Sylvain Bauza (sylvain-bauza)

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

** Changed in: nova/queens
       Status: New => Confirmed

** Changed in: nova/queens
   Importance: Undecided => Medium

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https://bugs.launchpad.net/bugs/1762688

Title:
  rescued instance doesn't have attached vGPUs

Status in OpenStack Compute (nova):
  In Progress
Status in OpenStack Compute (nova) queens series:
  Confirmed

Bug description:
  With the libvirt driver, rescuing an instance means that the attached
  mediated devices for virtual GPUs will be released. When unrescuing
  the instance, the driver will use the existing guest XML so it will
  attach again the mediated devices, but it could be a race condition in
  case the related vGPUs are now attached to a separate instance.

  We should attach the mediated devices to the rescued instance too.

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