nullfs on 5.1

Florian Weimer fw at
Thu Jan 8 14:07:10 PST 2004

I'm trying to use nullfs on FreeBSD 5.1, and run into deadlocks in quite
simple situations (chroot to tree that contains an alias mount, read
access to the mounted tree -- no recursive/loop mounts).  Processes get
stuck and hang forever in D state (holding a UFS log according to ps).

Is nullfs essentially unsuported, or is it just broken?  What's the
status of unionfs (the manpage is rather discouraging).

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