unionfs 5.4
Kris Kennaway
kris at FreeBSD.org
Mon Mar 7 09:02:54 PST 2005
On Sun, Mar 06, 2005 at 11:32:18AM +0300, Denis Shaposhnikov wrote:
> >>>>> "Kris" == Kris Kennaway <kris at FreeBSD.ORG> writes:
>
> Kris> But it works, and doesn't panic the system. unionfs is
> Kris> well-documented to be broken, and this is unlikely to change in
> Kris> the near future.
>
> That's a recent regression, unionfs works fine on
>
> FreeBSD sagitta.internal.vlink.ru 6.0-CURRENT FreeBSD 6.0-CURRENT #1: Wed Dec 1 17:39:09 MSK 2004 dsh at rigel.internal.vlink.ru:/var/FreeBSD/obj/var/FreeBSD/src/sys/SAGITTA i386
>
> And if unionfs panic the system on 5.4 too, I think it can't be STABLE
> at all.
>
> BTW, from man mount_nullfs:
>
> BUGS
> THIS FILE SYSTEM TYPE IS NOT YET FULLY SUPPORTED (READ: IT DOESN'T WORK)
> AND USING IT MAY, IN FACT, DESTROY DATA ON YOUR SYSTEM. USE AT
> YOUR OWN RISK. BEWARE OF DOG. SLIPPERY WHEN WET.
>
> So you can't suggest to use nullfs instead of unionfs, because "is
> well-documented to be broken".
That comment seems to be out of date. I'm not aware of any existing
bugs in nullfs in 5.x and 6.x.
Kris
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