<div dir="ltr">Hello guys,<div><br></div><div>I don't know if it's the right place to post this issue but I didn't find another way to contact you.</div><div><br></div><div>I'm currently testing lxc features ("docker" to be precise) and I'm facing the following message when I try to use criu :</div>
<div><br></div><div><br>
<div><div>1 - check if CRIU is working with my kernel :</div><div><br></div><div>criu check --ms</div><div>(00.012246) Warn (tun.c:55): Skipping tun support check</div><div>Looks good.</div><div><br></div><div>2 - Identify what i want to dump, for example varnish:</div>
<div><br></div><div>init,1 </div><div> ├─acpid,3886</div><div> ├─atd,3648</div><div> ├─auditd,3591</div><div> │ ├─audispd,3593</div><div> │ │ └─{audispd},3598</div><div> │ └─{auditd},3592</div><div> ├─cron,3781</div>
<div> ├─dbus-daemon,3883 --system</div><div> ├─docker,3732 -d -p /var/run/docker.pid -r=false -s devicemapper</div><div> │ ├─lxc-start,4592 -n 9f81f7bc33c83fc1369b9355c959b6f0d8c87c6758bb75af3ae726ba2bad053a -f...</div>
<div> │ │ └─sh,4601 -c /bin/bash -c '/usr/local/sbin/runservices.sh; /usr/sbin/sshd -D'</div><div> │ │ ├─bash,4685 -c /usr/local/sbin/runservices.sh; /usr/sbin/sshd -D</div><div> │ │ │ └─sshd,5022 -D</div>
<div> │ │ ├─cc-node,4774 /usr/bin/cc-node -d -p /var/run/cc-node.pid</div><div> │ │ │ └─{cc-node},4776</div><div> │ │ ├─collectdmon,4820 -P /var/run/collectdmon.pid -- -C /etc/collectd/collectd.conf</div>
<div> │ │ │ └─collectd,4822 -C /etc/collectd/collectd.conf -f</div><div> │ │ │ ├─{collectd},4823</div><div> │ │ │ ├─{collectd},4824</div><div> │ │ │ ├─{collectd},4825</div>
<div> │ │ │ ├─{collectd},4826</div><div> │ │ │ ├─{collectd},4827</div><div> │ │ │ └─{collectd},4828</div><div> │ │ ├─rsyslogd,4729 -c5</div><div> │ │ │ ├─{rsyslogd},4737</div>
<div> │ │ │ ├─{rsyslogd},4738</div><div> │ │ │ └─{rsyslogd},4739</div><div> │ │ ├─ruby,4837 /usr/bin/collectd-interface-daemon -p 5000 -l /var/log -P /var/run -I ...</div><div> │ │ │ └─{ruby},7084</div>
<div> │ │ └─varnishd,4792 -P /var/run/varnishd.pid -a :8000 -T :6082 -f /etc/varnish/default.vcl -p ...</div><div> │ │ └─varnishd,4794 -P /var/run/varnishd.pid -a :8000 -T :6082 -f /etc/varnish/default.vcl -p ...</div>
<div> │ │ ├─{varnishd},4795</div><div> │ │ ├─{varnishd},4796</div><div> │ │ ├─{varnishd},4797</div><div> │ │ ├─{varnishd},4798</div><div> │ │ ├─{varnishd},4800</div>
<div> │ │ ├─{varnishd},4801</div><div> │ │ ├─{varnishd},4802</div><div> │ │ ├─{varnishd},4803</div><div> │ │ ├─{varnishd},4804</div><div> │ │ ├─{varnishd},4805</div>
<div> │ │ ├─{varnishd},4806</div><div> │ │ ├─{varnishd},4807</div><div> │ │ ├─{varnishd},4808</div><div> │ │ ├─{varnishd},4809</div><div> │ │ ├─{varnishd},4810</div>
<div> │ │ ├─{varnishd},4811</div><div> │ │ ├─{varnishd},4812</div><div> │ │ └─{varnishd},4813</div><div><br></div><div>3 - try to dump</div><div><br></div><div>criu dump --tree 4792 --images-dir /data/ --leave-stopped</div>
<div>pie: Error (pie/parasite.c:243): mount failed (-1)</div><div>pie: Error (pie/parasite.c:474): Close the control socket for writing</div><div>></div><div>(00.095409) Error (parasite-syscall.c:787): Can't retrieve FD from socket</div>
<div>(00.095454) Error (parasite-syscall.c:297): Message reply from daemon is trimmed (12/0)</div><div>(00.095468) Error (cr-dump.c:1441): Can't get proc fd (pid: 4792)</div><div>(00.096172) Error (cr-dump.c:1811): Dumping FAILED.</div>
</div><div><br></div></div><div><br></div><div>I built a custom kernel from 3.12.6 debian sources.</div><div><br></div><div>I followed the instructions in your website </div>
<div><br></div><div>Could you please help me to fix that.</div><div><br></div><div>Thanks,</div><div>Smana</div></div>