ZFS quota performance issues?

[riz%NetBSD.org@localhost]

Sorry if this has already been discussed-

I've been using ZFS on current happily for a few weeks now, and apart 
from a little weirdness setting it up (wedge changing out from under me; 
I think I've got that sorted now) it's been performing well.


However, I just put a quota on a filesystem I created, and any access 
(ls, etc) to that file system causes the process to hang in zfscv for 
many seconds.  The operation eventually completes, but it doesn't seem 
to be a caching issue, because another ls on the same directory makes it 
happen reliably.  When I remove the quota, all is well.


Known issue?  Should I pr?  This is in 9.99.87 circa end of July...

+j