Udo, I dug up my fix and started unit testing it again. I quickly ran into the issue from last time. I've since fixed that and I'm back to unit testing it.
I just want to reiterate that we don't know that: 6636260 mirror mounts can unexpectedly return EBUSY is the bug you are seeing. Also, it doesn't get integrated unless we know it doesn't cause a regression. No timeline on when it gets integrated, but we are making good progress on it. Thanks, Tom
