Bug#818978: systemd crashes in lxc on container stop

[Stefan Schlesinger]

Package: systemd
Version: 215-17+deb8u3
Tags: patch fixed-upstream
User: pkg-systemd-maintainers at lists.alioth.debian.org
Usertags: jessie-backport

We are currently testing LXC 2.0 beta with unprivileged containers on Ubuntu
16.04/testing and hit a already fixed systemd bug when testing with
Debian/Jessie based containers.

Currently systemd crashes with an assert in the shutdown path right after
unmounting all devices:

# lxc stop test02
# ps axf
21568 ?        Ss     0:00 [lxc monitor] /var/lib/lxd/containers test02
21584 ?        Ss     6:55  \_ /sbin/init
22588 ?        Ss     1:10      \_ /lib/systemd/systemd-journald
17093 ?        Zs     0:00      \_ [systemctl] <defunct>

Attached is a log file with the journalctl output, showing the assert:

systemd[1]: Assertion 'sd_id128_randomize(&id) >= 0' failed at ../src/core/dbus.c:688, function bus_on_connection(). Aborting.
systemd[1]: Caught <ABRT>, dumped core as pid 15711.
systemd[1]: Freezing execution.
systemctl[15703]: Failed to execute operation: Connection reset by peer

The bug has been reported upstream and fixed in Systemd 219, and we would like
to request to include the patch[1] into Jessie.

It currently doesn’t affect LXC on a Jessie host, but any platforms on LXC 2.0
with unprivileged containers will run into this issue.

In respect of how long Jessie is still going to be around, and the upcoming
release of Ubuntu 16.04 this bugfix is important.

I’m attaching a link[2] to the initial discussion between Stéphane Graber and
Lennart Poettering, and a link[1] to applied patch. Also this[3] seems to be
the initial bug report for Ubuntu’s systemd package.

Best,

Stefan.

[1] https://lists.freedesktop.org/archives/systemd-devel/2015-January/027323.html
[2] https://github.com/systemd/systemd/commit/874d3404cbf2363604106c8f86683db4082691ea
[3] https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1519499



-------------- next part --------------
A non-text attachment was scrubbed...
Name: journalctl.log
Type: application/octet-stream
Size: 13396 bytes
Desc: not available
URL: <http://lists.alioth.debian.org/pipermail/pkg-systemd-maintainers/attachments/20160322/d4999aed/attachment.obj>