Re: [vserver] vc_unset_mapping(): Function not implemented

From: Corey Wright <undefined_at_pobox.com>
Date: Wed 14 Dec 2011 - 01:18:21 GMT
Message-Id: <20111213191821.d95b594b.undefined@pobox.com>

On Tue, 13 Dec 2011 20:10:14 +0100
Jarry <mr.jarry@gmail.com> wrote:

> On 11-Dec-11 21:58, Herbert Poetzl wrote:
> >
> >>>> # echo "MKNOD">> /etc/vservers/vs4/bcapabilities
> >>>> # mkdir -p /etc/vservers/vs4/apps/vdevmap/null
> >>>> # touch /etc/vservers/vs4/apps/vdevmap/null/create
> >>>> # echo "null"> /etc/vservers/vs4/apps/vdevmap/null/device
> >>>> # touch /etc/vservers/vs4/apps/vdevmap/null/open
> >
> >>>> Now withount changing anything more whenever I stop guest,
> >>>> the very last message I see is:
> >>>> vc_unset_mapping(): Function not implemented
> >
> >>>> What does that message mean?
> >
> >>> it means, that your kernel reports that specific
> >>> Linux-VServer syscall comman as unimplemented.
> >
> >>>> Did I miss something?
> >
> >>> as usual, the kernel, patch and util-vserver
> >>> version would help a lot ...
> >
> >> kernel 2.6.35
> >> vserver 2.3.0.36.32
> >
> > hmm, we never released a 2.6.35-vs2.3.0.36.32 patch,
> > till 2.6.35.2 it was vs2.3.0.36.31 ...
>
> That is strange, because gentoo has exactly this in portage
> as the last stable version: 2.6.35-vs2.3.0.36.32

does that "2.6.35" translate to a generic "2.6.35.z", because if not then you
are 14 releases behind (as the current "2.6.35" is 2.6.35.14)?

and herbert is saying that there wasn't a vs2.3.0.36.32 patch until 2.6.35.4,
so if you are running "2.6.35" (ie 2.6.35.0), then there never was a
vs2.3.0.36.32 patch for it.

>
> > anyway, assuming that the kernel .config has
> > CONFIG_VSERVER_DEVICE=y, the set/unset syscall
> > command should be implemented and thus you won't
> > get 'Function not implemented' ...
>
> It was not set. I followed "Installation_on_Gentoo" guide
> and there is nothing about it so I did not activate it.
> So I recompiled kernel and now the message changed to:
>
> vc_unset_mapping(): No such process
>
> Again, it is shown as the very last message when I shutdown
> vserver-guest with the above mentioned options. Any idea what
> this means how it could be fixed?

ah, that might be the same issue i ran into:

http://list.linux-vserver.org/archive?mss:4318:201009:idddcnjbhchklkaoalcf

and daniel's later reply:

http://list.linux-vserver.org/archive?mss:5093:201105:eleeobckmofijcflgodd

corey

--
undefined@pobox.com
> Jarry
Received on Wed Dec 14 01:18:39 2011
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