[Lxc-users] Can't connect to an LXC container after restart

[David Parks]

I was playing with a container today, we took the following actions:

.         Change from static to DHCP IP

.         Shut down container, add an fstab entry to LXCs fstab file

.         Started, failed to start

.         Undid all changes, re-configured static IP and removed the fstab
entry

 

Now when I try to start the container I see this in the debug log -o
debugfile -l DEBUG:

 

     lxc-start 1367826547.900 DEBUG    lxc_conf - umounted
'/lxc_putold/sys/kernel/security'

      lxc-start 1367826547.900 DEBUG    lxc_conf - umounted
'/lxc_putold/proc'

      lxc-start 1367826547.900 DEBUG    lxc_conf - umounted
'/lxc_putold/mnt/hdfs'

      lxc-start 1367826547.900 DEBUG    lxc_conf - umounted
'/lxc_putold/dev'

      lxc-start 1367826547.900 DEBUG    lxc_conf - umounted
'/lxc_putold/run'

      lxc-start 1367826547.900 DEBUG    lxc_conf - umounted
'/lxc_putold/sys/fs/cgroup'

      lxc-start 1367826547.900 DEBUG    lxc_conf - umounted
'/lxc_putold/sys'

      lxc-start 1367826547.900 DEBUG    lxc_conf - umounted '/lxc_putold'

      lxc-start 1367826547.900 INFO     lxc_conf - created new pts instance

      lxc-start 1367826547.900 INFO     lxc_conf - set personality to '0x0'

      lxc-start 1367826547.900 DEBUG    lxc_conf - drop capability
'sys_module' (16)

      lxc-start 1367826547.900 DEBUG    lxc_conf - drop capability
'mac_admin' (33)

      lxc-start 1367826547.900 DEBUG    lxc_conf - capabilities has been
setup

      lxc-start 1367826547.900 NOTICE   lxc_conf - 'testsandboxa01' is
setup.

      lxc-start 1367826547.900 INFO     lxc_start - changed apparmor profile
to unconfined

      lxc-start 1367826547.900 NOTICE   lxc_start - exec'ing '/sbin/init'

      lxc-start 1367826547.917 NOTICE   lxc_start - '/sbin/init' started
with pid '32017'

      lxc-start 1367826547.917 WARN     lxc_console - console input disabled

      lxc-start 1367826547.917 WARN     lxc_start - invalid pid for SIGCHLD

      lxc-start 1367826561.715 DEBUG    lxc_commands - peer has disconnected

 

I can connect to the console, but I get nothing back from the console, I
can't SSH to the container, it just appears hung. We had this container
running fine for weeks now, only on the restart did I get this, and I'm
reasonably confident that we un-did any changes we had made in our testing.

 

David

 

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