Subject: Re: [vserver] shutdown zombie after incomplete stop of guest
From: Oliver Welter <mail@oliwel.de>
Date: Fri, 19 Sep 2008 00:47:03 +0200

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ok - for the logs - suddendly vkill did the job, I really tried before
without success but now it worked.
Anyhow, a clean solution on this would be great....

Oliver Welter schrieb:
> Hi All,
> 
> I am still experimenting with vserver and aufs.
> After the misleading tries with mounting aufs inside the guests, I now
> tried the setup as proposed by the aufs developer
> http://aufs.sourceforge.net/linux-vserver.txt
> 
> In short - I have a rootfs and an overlay, mount them together in the
> root context and than fire up the guest. Things that might be of
> interest: the rootfs is shared among multiple guests and the overlay
> resides on a drbd on top of an lvm - but I dont assume that this is
> relevant...
> 
> It seems that the timeout of the shutdown is sometimes not sufficient to
> terminate all processes, I get an info that some processes where
> terminated but that some cant - the only process left looks like this:
> 
>  2188 ?        Ds     0:00 /sbin/shutdown -r 0 w
> 
> I can still see the guest in the vserver-stats list and enter the guest,
> whre I see just this single provess and the two process of the login bash.
> I am unable to kill this Zombie, neither with kill from inside, nor with
> vkill from outside and vserver-stop also fails.
> 
> Kernel log is empty, so there seem to be no oopses.
> I am running 2.6.22-vs2.2.0.7 with 0.3.215 tools, the host is debian,
> the guets are gentoo with a 2008 profile and baselayout2/openrc
> 
> Any ideas on this?
> 
> Oliver

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