I must apologise for improperly reporting this bug initially. I have updated the title and tags. Also, my comment #1 is invalid, so to clarify:
This does not impact Openstack Ocata, it first becomes apparent in Openstack Pike.
This is not an arm64 specific issue - actually, it impacts openstack on lxd when using ZFS as a backing store. the scenario where the bug was noticed was:
I must apologise for improperly reporting this bug initially. I have updated the title and tags. Also, my comment #1 is invalid, so to clarify:
This does not impact Openstack Ocata, it first becomes apparent in Openstack Pike.
This is not an arm64 specific issue - actually, it impacts openstack on lxd when using ZFS as a backing store. the scenario where the bug was noticed was:
Openstack on top of LXD with a ZFS backing store.
ZFS does not handle O_DIRECT calls (see note #6).