Bug#769613: LXC guest shutdown hangs the host SSH sessions
As i ran into the same problem, i'll give some additional feedback The problem can be reproduced with : - unspecified lxc.network.type (= none ?) - using halt/reboot/poweroff -i in the guest container Step by step instructions - create a virtualbox vm - install with source iso debian-7.7.0-amd64-netinst.iso - don't check anything in tasksel, minimal install - apt-get update apt-get dist-upgrade rebooot -i - apt-get install lxc - echo cgroup /sys/fs/cgroup cgroup defaults 0 0 /etc/fstab - mount cgroup - lxc-create -n admin1 -t debian - ip addr shows host ip config : eth0 10.0.2.15 - lxc-start -n admin1 -d - lxc-console -n admin1 - login as root/root - halt/reboot/poweroff -i - console hangs - Cltr-A q to get back to host - ip addr shows host ip config : eth0 has lost its ipv4 addresses By the way : - everything is done in the console of the host, no ssh involved - the very same happens whether the host's eth0 is dhcp or static - guest /var/lib/lxc/admin1/config file was not modified - guest /etc/network/interface was not modified The default container configuration doesn't contain an lxc.network.type statement. The default value for lxc.network.type AFAIK seems to be set to none, which as per [1] **shares** the host eth0 with he guest eth0. So when the guest is going down, the -i argument to the down command deconfigures it's interface, and as it's shared with the host, the host interface is deconfigured too As a consequence, i think the SSH problem mentioned above is more a problem of the host's eth0 being shared with the container's when lxc.network.type is not specified (=none?) **AND** using halt/reboot/poweroff with the -i parameter, which asks the container to shut down all network interfaces just before halt or reboot, and in the case above does so on the host's interface as it's shared. PS: I tested too with - lxc.network.type = empty - lxc.network.type = veth and lxc.network.link = br0 In both case, with or without -i, the host interface was untouched. [1] http://man7.org/linux/man-pages/man5/lxc.container.conf.5.html -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Bug#769613: LXC guest shutdown hangs the host SSH sessions
close 769613 1.0.6-1 thanks i can't reproduce it with any version, but specifically also not with the jessie one, so doing a versioned close of the bug accordingly. -- Address:Daniel Baumann, Donnerbuehlweg 3, CH-3012 Bern Email: daniel.baum...@progress-technologies.net Internet: http://people.progress-technologies.net/~daniel.baumann/ -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Bug#769613: LXC guest shutdown hangs the host SSH sessions
On 11/16/2014 04:39 PM, Mario Castelán Castro wrote: The configuration is the default generated by LXC, everything LXC-related is at its defaults i've just reproduce it again with a clean wheezy vm from scratch. it doesn't happen. just to be sure, you're building debian containers on a debian host, right? -- Address:Daniel Baumann, Donnerbuehlweg 3, CH-3012 Bern Email: daniel.baum...@progress-technologies.net Internet: http://people.progress-technologies.net/~daniel.baumann/ -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Bug#769613: LXC guest shutdown hangs the host SSH sessions
Hello. The configuration is the default generated by LXC, everything LXC-related is at its defaults, except for this added line in /etc/fstab as recommended in https://wiki.debian.org/LXC: none /sys/fs/cgroup cgroup Note that this LXC version is quite old. Maybe you're using a newer version which doesn't have this problem. -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Bug#769613: LXC guest shutdown hangs the host SSH sessions
Package: lxc Version: 0.8.0~rc1-8+deb7u2 Hello. I have noticed that in Debian 7.7, when shutting down a Debian container with shutdown the host ongoing SSH sessions terminate and I can't connect to the host anymore through SSH. However I can still access the host through the its terminal. This was tested in a fully upgraded Debian Wheezy for x86_64 in a machine virtualized with QEMU/KVM. -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Bug#769613: LXC guest shutdown hangs the host SSH sessions
tag 769613 moreinfo tag 769613 unreproducible thanks On 11/15/2014 02:25 AM, Mario Castelán Castro wrote: I have noticed that in Debian 7.7, when shutting down a Debian container with shutdown the host ongoing SSH sessions terminate i'm doing this on a daly basis and have never experienced that. can you attach a config of such a container that you're shutting down? -- Address:Daniel Baumann, Donnerbuehlweg 3, CH-3012 Bern Email: daniel.baum...@progress-technologies.net Internet: http://people.progress-technologies.net/~daniel.baumann/ -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
