<div dir="ltr">strace command is your friend.<div><br></div><div>b.</div><div><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On 21 January 2016 at 12:12, Viktor Trojanovic <span dir="ltr"><<a href="mailto:viktor@troja.ch" target="_blank">viktor@troja.ch</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<div>On 20.01.2016 23:50, Fajar A. Nugraha
wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">
<div class="gmail_extra">
<div class="gmail_quote">On Thu, Jan 21, 2016 at 5:49 AM,
Fajar A. Nugraha <span dir="ltr"><<a href="mailto:list@fajar.net" target="_blank"></a><a href="mailto:list@fajar.net" target="_blank">list@fajar.net</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex">
<div dir="ltr">
<div class="gmail_extra">
<div class="gmail_quote"><span>On Thu, Jan
21, 2016 at 5:23 AM, Viktor Trojanovic <span dir="ltr"><<a href="mailto:viktor@troja.ch" target="_blank">viktor@troja.ch</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 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>
</blockquote>
<div><br>
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<div><br>
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</span>
<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>
<div><br>
</div>
</div>
</div>
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</blockquote>
<div><br>
</div>
<div>That should be: AFAIK restarting lxc service does <b>NOT
</b>restart running containers.<br>
</div>
<div><br>
</div>
<div><br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex">
<div dir="ltr">
<div class="gmail_extra">
<div class="gmail_quote">
<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>
<span><font color="#888888">
<div><br>
</div>
<div>-- </div>
<div>Fajar</div>
</font></span></div>
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</blockquote></div></div>
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><span class="HOEnZb"><font color="#888888">
<br>
Viktor<br>
<br>
</font></span></div>
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