[Expired for OpenStack Compute (nova) because there has been no activity
for 60 days.]
** Changed in: nova
Status: Incomplete => Expired
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https://bugs.launchpad.net/bugs/1512443
Title:
config drive on RBD leaves orphaned loopback device mounts
Status in OpenStack Compute (nova):
Expired
Bug description:
Version: Juno (with https://review.openstack.org/#/c/123073/
backported)
Reproduce:
Create a VM with config-drive on ceph/rbd.
Expected result:
When the VM is created, part of the above patch copies the config drive onto
RBD by way of using a loopback device to copy the contents. It is expected
that once this is completed, the loopback device will be properly cleaned up.
The end result being no loopback devices left open and the config drive being
properly stored on RBD.
Actual result:
After the config drive is copied to RBD, a loopback device is left mounted to
a deleted file:
/dev/loop0: [0807]:33682451
(/var/lib/nova/instances/0925ed53-16f1-48f2-a190-ab19706b80c6_del/disk.config
(deleted))
The config drive is successfully copied to RBD, but eventually all the
loopback devices are consumed, causing subsequent VM creations (on the
hypervisor in question) to fail and requiring the hypervisor to be rebooted to
clean them up.
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