Hi Patrik,
Could you give us more details regarding the problem ? The
situation described below works perfectly in the latest snapshots
("unionfs-20051129-1818.tar.gz" and later).
Thanks,
-A.
===================================
# Arun M. Krishnakumar #
# Graduate Student #
# Department of Computer Science #
# SUNY, Stony Brook #
===================================
On Wed, 28 Sep 2005, Patrik Weiskircher wrote:
> Date: Wed, 28 Sep 2005 17:08:50 +0200
> From: Patrik Weiskircher <[EMAIL PROTECTED]>
> To: Shaya Potter <[EMAIL PROTECTED]>
> Cc: [EMAIL PROTECTED]
> Subject: Re: [Unionfs] unionfs 1.0.14 (up to latest snapshot) deadlock on
> adding a branch
>
> > > > > I've got a little problem here and I'm not sure if I did something
> > > > > wrong
> > > > > on my side or if there is something wrong with unionfs 1.0.14 (up to
> > > > > the
> > > > > latest snapshot).
> > > > >
> > > > > My problem:
> > > > > I have three branches mounted on /:
> > > > > 0: /mnt/rw (tmpfs, read-write)
> > > > > 1: /mnt/custom (ext2, read-only)
> > > > > 2: /mnt/rootfs (ext2, read-only)
> > > > >
> > > > > I'm in my home directory.
> > > > > I do a 'unionctl / --add --mode ro /mnt/test'.
> > > > > This one works without a problem.
> > > >
> > > > this confuses me.
> > > >
> > > > so you have 3 directories
> > > >
> > > > /mnt/rw
> > > > /mnt/custom
> > > > /mnt/rootfs
> > > >
> > > > which you union as /
> > > >
> > > > then you add /mnt/test
> > > >
> > > > so basically you seem to be trying to union a lower directory with
> > > > itself. This seems to be setting you up for major pain, as you could
> > > > change the union below unionfs by just modifying /mnt/test directly.
> > >
> > > As '/mnt' is mounted from a different partition this shouldn't effect
> > > UnionFS, correct?
> >
> > no, I think it would, but I'm not an expert on this. What I'd perhaps
> > do (but again not an expert) is creeate a /newroot with unionfs and then
> > pivot root to /newroot, but don't know if that work.
>
> I just tried a few snapshots in between the 1.0.13 and 1.0.14 release.
> It still works without a deadlock in 20050811-0941, but is broken in
> 20050829-0915. I'm going to further track it down tomorrow..
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>
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