Can not force delete instance that task_state is not None

[tangxing]

Description
===========
Can not force delete instance that task_state is not None

Steps to reproduce
==================
1:create a VM or migrate VM or execute other operation
2:force delete vm that task state is not None

Expected result
===============
delete vm successful

Actual result
=============
fail to delete vm

[Takashi Natsume (natsume-takashi)]

There are some similar bug reports.

Nova can't force-delete instance that is stuck in deleting process
https://bugs.launchpad.net/nova/+bug/1641523

nova force-delete can't delete instance in vm_state block_device_mapping
https://bugs.launchpad.net/nova/+bug/1704945

[Ghanshyam Mann (ghanshyammann)]

This issue has been fixed in different bug- https://bugs.launchpad.net/nova/+bug/1741000

and fixed and backported till stable/pike - https://review.openstack.org/#/q/Ida1a9d8761cec9585f031ec25e5692b8bb55661e

What nova version you are running and seeing this bug ?

marking incomplete till then.