I'm fairly certain that in -current, if I use BUFQ_PRIOCSCAN, I get
frequent deadlocks with LFS.
I have to get work done on my desktop machine, so I cannot test this
right now.  If I don't use disksort, the system seems much more
stable.

I haven't used FFS that much with it recently, so I can't comment on that.

If someone else could try to reproduce this behavior, I'd appreciate
it.  Otherwise, I'll build a LOCKDEBUG/DIAGNOSTIC kernel in the near
future and see what information I can glean myself.

Regards,

--Blair