From mboxrd@z Thu Jan  1 00:00:00 1970
Message-ID: <91a087f2f4440d8df784baf9a9abd2b6@plan9.bell-labs.com>
Date: Tue,  3 Jan 2006 16:47:50 -0500
From: jmk@plan9.bell-labs.com
To: 9fans@cse.psu.edu
Subject: Re: [9fans] clunk clunk
In-Reply-To: <775b8d190601031333l11782437rd6218e79f5cb3d8e@mail.gmail.com>
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Instead of engaging in handbags, why don't
you demonstrate the problem and how to fix it?

--jim

On Tue Jan  3 16:34:12 EST 2006, bruce.ellis@gmail.com wrote:
> I can do anything I like Russ.  A fileserver is not the size of a fridge.
> It's often a user process.  If you don't think this is a problem well
> live with it.  I don't like rebooting a machine that's been running for
> months because of this "bug".
> 
> Mother Mary may believe your explanation but it is a BUG which
> I squashed.
> 
> brucee
> 
> On 1/4/06, Russ Cox <rsc@swtch.com> wrote:
> > > Bullshit.  It happens all the time.  Rio+Plumber is a simple example.
> >
> > In the standard profile, as set up by /sys/lib/newuser
> > or demonstrated in /usr/glenda/lib/profile,
> > plumber is run before rio starts, so rio has
> > plumber mounted but not vice versa:
> >
> > % grep plumb /proc/^`{ps|grep rio|awk '{print $2}'}^/ns
> > /proc/86746/ns:mount  #s/plumb.rsc.86763 /mnt/plumb
> > /proc/86768/ns:mount  #s/plumb.rsc.86763 /mnt/plumb
> > /proc/86769/ns:mount  #s/plumb.rsc.86763 /mnt/plumb
> > /proc/86770/ns:mount  #s/plumb.rsc.86763 /mnt/plumb
> > /proc/86771/ns:mount  #s/plumb.rsc.86763 /mnt/plumb
> > /proc/86772/ns:mount  #s/plumb.rsc.86763 /mnt/plumb
> > /proc/86773/ns:mount  #s/plumb.rsc.86763 /mnt/plumb
> > % grep rio /proc/^`{ps|grep plumb|awk '{print $2}'}^/ns
> > %
> >
> > If you want to actually cause a loop, then you could run
> > plumber in your riostart (as in rio -i riostart) file.  But there
> > are plenty of ways to shoot yourself in the foot with
> > ref count loops if you really want to go there.  A much
> > more direct one is to run a file server that mounts
> > itself into its own name space.
> >
> > Russ
> >