[vserver] vserver stop hangs with ubuntu precise guest

Hi all,

Im am running a ubuntu 12.04 guest on an ubuntu 12.04 host (see
vserver-info below).

The vservers are running fine, except that stopping a vserver causes a
timeout:

root@kmux-host:~/kmux/kmux/branches/kmuxNG/kmux-generate/config# vserver
--verbose kmux-fs stop
A timeout occured while waiting for the vserver to finish and it will
be killed by sending a SIGKILL signal. The following process list
might be useful for finding out the reason of this behavior:

----------------------------------------------------------------------
  7951 1022 kmux-fs ? Ss 0:00 /sbin/init
----------------------------------------------------------------------

Well, I tried to get the root-cause of this problem, but with no luck.
Disabling console output of upstart services and enabling upstart
--debug did not help in any respect.

Are the any further hints?

----------
root@kmux-host:~/kmux/kmux/branches/kmuxNG/kmux-generate/config#
vserver-info
Versions:
                    Kernel: 3.4.5-030405-kmux-pae
                    VS-API: 0x00020308
                       VCI: 0x0000000013001f01
              util-vserver: 0.30.216-pre3004; Aug 28 2012, 06:10:22

Features:
                        CC: gcc, gcc (Ubuntu/Linaro 4.6.3-1ubuntu5) 4.6.3
                  CPPFLAGS: ''
                    CFLAGS: '-g -O2 -std=c99 -Wall -pedantic -W
-funit-at-a-time'
                build/host: i686-pc-linux-gnu/i686-pc-linux-gnu
              Use dietlibc: yes
        Build C++ programs:
        Build C99 programs: yes
            Available APIs: v13,net,v21,v22,v23,netv2
             ext2fs Source: e2fsprogs
     syscall(2) invocation: alternative
       vserver(2) syscall#: 273/glibc
                crypto api: nss
           python bindings: yes
    use library versioning: yes

Paths:
                    prefix: /usr
         sysconf-Directory: /etc
             cfg-Directory: /etc/vservers
          initrd-Directory: $(sysconfdir)/init.d
        pkgstate-Directory: ${prefix}/var/run/vservers
           vserver-Rootdir: /vservers

Assumed 'SYSINFO' as no other option given; try '--help' for more
information.

-- 
Wilhelm