Seeing a bunch of failures in gate - see
https://bugs.launchpad.net/nova/+bug/1254890 for the same behavior we
see there that was originally reported in this bug.
** Summary changed:
- refactoring of qemu-nbd error handling
+ mount nbd hangs because of previous umount failure
** Changed in: nova
Status: Invalid => Confirmed
** Changed in: nova
Importance: Undecided => High
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https://bugs.launchpad.net/bugs/973413
Title:
mount nbd hangs because of previous umount failure
Status in OpenStack Compute (Nova):
Confirmed
Bug description:
Scenario:
While injecting data in an instance, if the umount command fails, the
qemu-nbd disconnect command also fails and the device becomes unusable.
However, the device (/dev/nbd15) gets added back to the available device list.
So, if another instance is launched (with some injected data), it tries to
use the
same nbd device (/dev/nbd15) which contains a stale connection.
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