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    <div class="moz-cite-prefix">On 20.01.2016 23:50, Fajar A. Nugraha
      wrote:<br>
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cite="mid:CAG1y0sc2x9eT-tO0yND9=7gKR_+vZ+g3W8je_DSa3DfyZTQ2Rg@mail.gmail.com"
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          <div class="gmail_quote">On Thu, Jan 21, 2016 at 5:49 AM,
            Fajar A. Nugraha <span dir="ltr"><<a
                moz-do-not-send="true" href="mailto:list@fajar.net"
                target="_blank"><a class="moz-txt-link-abbreviated" href="mailto:list@fajar.net">list@fajar.net</a></a>></span> wrote:<br>
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0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex">
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                  <div class="gmail_quote"><span class="">On Thu, Jan
                      21, 2016 at 5:23 AM, Viktor Trojanovic <span
                        dir="ltr"><<a moz-do-not-send="true"
                          href="mailto:viktor@troja.ch" target="_blank">viktor@troja.ch</a>></span>
                      wrote:<br>
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0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex">I
                        just did a system upgrade on my Arch System
                        which included updating the kernel, systemd and
                        lxc to the newest versions. After having done
                        so, I cannot interact with my Linux container
                        any longer. The system within the container
                        still seems to work fine and can be contacted
                        from outside (Samba server) but if I try to use
                        one of the lxc commands to query or otherwise
                        interact with the container (e.g. lxc-ls -f,
                        lxc-stop, lxc-console, lxc-attach), the command
                        hangs until I cancel it with CTRL+C.<br>
                        <br>
                        I get the following message when cancelling
                        lxc-ls -f (as root):<br>
                        <br>
                        ^CTraceback (most recent call list):<br>
                          File "/usr/bin/lxc-ls", line 432, in
                        <module><br>
                            containers = get_containers(root=True)<br>
                          File "user/bin/lxc-ls", line 261, in
                        get_containers<br>
                            if container.controllable:<br>
                        KeyboardInterrupt<br>
                        <br>
                        Regular lxc-ls works normal, by the way.<br>
                        <br>
                        I can probably just reboot the server but I
                        still wanted to ask around if anyone has an idea
                        why this is happening and what I could do except
                        rebooting to regain control of LXC? I tried
                        already systemctl restart lxc but that doesn't
                        help.<br>
                        <br>
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                    <div>Do you have lxcfs installed? If yes, this
                      should be a know issue. When you restart lxcfs,
                      all existing running containers that use it will
                      be unable to access lxcfs-provided resources.
                      AFAIK restarting lxc service does restart running
                      containers.</div>
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            <div>That should be: AFAIK restarting lxc service does <b>NOT
              </b>restart running containers.<br>
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                    <div>Try killing one of those containers (lxc-stop
                      -k -n ...), start it, and then test again. If it
                      works, do the same for other containers.</div>
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                        <div>-- </div>
                        <div>Fajar</div>
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    Hi Fajar, <br>
    <br>
    I'm not using lxcfs, just regular directory based containers. <br>
    <br>
    I cannot do anything with the containers. <br>
    <br>
    lxc-stop -k<br>
    lxc-ls -f<br>
    lxc-attach<br>
    lxc-console<br>
    systemctl stop lxc (or restart lxc)<br>
    <br>
    All these commands hang forever, I have to interrupt with CTRL+C and
    no output is written to the logs. But the container system keeps
    working fine, so does the host system. <br>
    <br>
    Viktor<br>
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