[lxc-users] Kernel lockups when running lxc-start

[Jäkel, Guido]

Dear Daniel,

may you please add some information about the type and layout of filesystems involved to get an idea what kind of mount operations are involved. I guess it's some bug in the FS layer while LXC doing the mounts.

thank you

Guido

>-----Original Message-----
>From: lxc-users-bounces at lists.linuxcontainers.org [mailto:lxc-users-bounces at lists.linuxcontainers.org] On Behalf Of Dao
>Quang Minh
>Sent: Wednesday, March 12, 2014 9:03 AM
>To: lxc-users at lists.linuxcontainers.org
>Subject: [lxc-users] Kernel lockups when running lxc-start
>
>Hi all,
>
>We encounter a bug today when one of our systems enter soft-lockup when we try to start a container. Unfortunately at that
>point, we have to do a power cycle because we can’t access the system anymore. Here is the kernel.log:
>
>[...]
>
>After this point, it seems that all lxc-start will fail,but the system continues to run until we power-cycled it.
>
>When i inspected some of the containers that were started during that time, i saw that one of them has an existing
>lxc_putold directory ( which should be removed when the container finished starting up right ? ). However, i'm not sure if that
>is related to the lockup above.
>
>The host is running on a 12.04 ec2 server, with lxc 1.0.0 and kernel 3.13.0-12.32
>
>Cheers,
>Daniel.