Public bug reported:
Binary package hint: lxc
This bug-report is for lxc 0.6.5-1 on Ubuntu 10.04.2.
I (must) use lxc with physical interface configuration (eth1 in my
example).
Inside the container there is a Ubuntu 10.04.2, too.
I can start the container, connect to it, networking works, etc.
Everything looks ok. But when I stop the container and try to restart it,
eth1 is no more available and restarting fails. I must reboot the host to
have eth1 back.
root@zoo:/lxc# grep network ubuntu.cfg
lxc.network.type = phys
lxc.network.link = eth1
lxc.network.flags = up
lxc.network.name = eth0
lxc.network.mtu = 1500
lxc.network.ipv4 = 129.69.1.219/24
root@zoo:/lxc# ethtool eth1
Settings for eth1:
Supported ports: [ TP ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Supports auto-negotiation: Yes
Advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Advertised pause frame use: No
Advertised auto-negotiation: Yes
Link partner advertised link modes: Not reported
Link partner advertised pause frame use: No
Link partner advertised auto-negotiation: No
Speed: 1000Mb/s
Duplex: Full
Port: Twisted Pair
PHYAD: 0
Transceiver: internal
Auto-negotiation: on
MDI-X: Unknown
Supports Wake-on: d
Wake-on: d
Current message level: 0x00000007 (7)
Link detected: yes
root@zoo:/lxc# l /proc/sys/net/ipv4/conf/
dRWX - 2011-04-13 08:15 /proc/sys/net/ipv4/conf/all
dRWX - 2011-04-13 08:17 /proc/sys/net/ipv4/conf/br0
dRWX - 2011-04-13 08:15 /proc/sys/net/ipv4/conf/default
dRWX - 2011-04-13 08:17 /proc/sys/net/ipv4/conf/eth0
dRWX - 2011-04-13 08:17 /proc/sys/net/ipv4/conf/eth1
dRWX - 2011-04-13 08:17 /proc/sys/net/ipv4/conf/eth2
dRWX - 2011-04-13 08:17 /proc/sys/net/ipv4/conf/eth3
dRWX - 2011-04-13 08:17 /proc/sys/net/ipv4/conf/eth4
dRWX - 2011-04-13 08:17 /proc/sys/net/ipv4/conf/eth5
dRWX - 2011-04-13 08:17 /proc/sys/net/ipv4/conf/eth6
dRWX - 2011-04-13 08:17 /proc/sys/net/ipv4/conf/eth7
dRWX - 2011-04-13 08:17 /proc/sys/net/ipv4/conf/eth8
dRWX - 2011-04-13 08:17 /proc/sys/net/ipv4/conf/eth9
dRWX - 2011-04-13 08:17 /proc/sys/net/ipv4/conf/lo
dRWX - 2011-04-13 08:17 /proc/sys/net/ipv4/conf/virbr0
root@zoo:/lxc# lxc-start -d -f ubuntu.cfg -n ubuntu
root@zoo:/lxc# lxc-console -n ubuntu
Type <Ctrl+a q> to exit the console
root@ubuntu:~# ifconfig eth0
eth0 Link encap:Ethernet HWaddr 00:50:56:8e:00:22
inet addr:129.69.1.219 Bcast:129.69.1.255 Mask:255.255.255.0
inet6 addr: fe80::250:56ff:fe8e:22/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:98 errors:0 dropped:0 overruns:0 frame:0
TX packets:20 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:6675 (6.6 KB) TX bytes:1386 (1.3 KB)
root@zoo:/lxc# lxc-stop -n ubuntu
root@zoo:/lxc# lxc-start -f ubuntu.cfg -n ubuntu
lxc-start: failed to retrieve the index for eth1
lxc-start: failed to create netdev
lxc-start: failed to create the network
lxc-start: failed to spawn 'ubuntu'
lxc-start: No such file or directory - failed to remove cgroup '/cgroup/ubuntu'
root@zoo:/lxc# ethtool eth1
Settings for eth1:
Cannot get device settings: No such device
Cannot get wake-on-lan settings: No such device
Cannot get message level: No such device
Cannot get link status: No such device
No data available
root@zoo:/lxc# l /proc/sys/net/ipv4/conf/
dRWX - 2011-04-13 08:15 /proc/sys/net/ipv4/conf/all
dRWX - 2011-04-13 08:17 /proc/sys/net/ipv4/conf/br0
dRWX - 2011-04-13 08:15 /proc/sys/net/ipv4/conf/default
dRWX - 2011-04-13 08:20 /proc/sys/net/ipv4/conf/dev3
dRWX - 2011-04-13 08:17 /proc/sys/net/ipv4/conf/eth0
dRWX - 2011-04-13 08:17 /proc/sys/net/ipv4/conf/eth2
dRWX - 2011-04-13 08:17 /proc/sys/net/ipv4/conf/eth3
dRWX - 2011-04-13 08:17 /proc/sys/net/ipv4/conf/eth4
dRWX - 2011-04-13 08:17 /proc/sys/net/ipv4/conf/eth5
dRWX - 2011-04-13 08:17 /proc/sys/net/ipv4/conf/eth6
dRWX - 2011-04-13 08:17 /proc/sys/net/ipv4/conf/eth7
dRWX - 2011-04-13 08:17 /proc/sys/net/ipv4/conf/eth8
dRWX - 2011-04-13 08:17 /proc/sys/net/ipv4/conf/eth9
dRWX - 2011-04-13 08:17 /proc/sys/net/ipv4/conf/lo
dRWX - 2011-04-13 08:17 /proc/sys/net/ipv4/conf/virbr0
As you can see: eth1 is now dev3 and lxc does not rename it back. I cannot
restart the container without eth1, I have to reboot the host. This is a
complete show stopper for lxc and makes it useless.
** Affects: lxc (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/764278
Title:
interface name eth1 does not come back after lxc-stop
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