[libvirt-users] libvirt-1.2.2-r1 (Gentoo) fails to start LXC containers

Tue Sep 10 14:09:44 UTC 2013

I recently upgraded "libvirt" on Gentoo to 1.2.2-r1 (latest available).  I
have not used LXC containers for a few weeks, so I don't recall what
version of libvirt I was using when my container last booted successfully.

Unfortunately, Gentoo's portage tree does not offer any previous versions
of libvirt that I could downgrade to.

TL;DR: My container is configured to use "br0" for its networking.  "br0"
exists totally inside my linux server - it is NOT bound to any physical
NIC.  "br0" is used for most of my QEMU and LXC VMs.  libvirt is reporting
that it cannot find device "veth1".  All of my Gentoo packages are
up-to-date.

Digging through my logs (/var/log/libvirt/libvirt.log), I see that I last
successfully booted this LXC container on 2013-07-22, with libvirt
reporting version "1.1.0".

Thoughts?

ostara lxc # equery l libvirt
 * Searching for libvirt ...
[IP-] [  ] app-emulation/libvirt-1.1.2-r1:0

ostara lxc # uname -a
Linux ostara 3.10.7-gentoo #2 SMP PREEMPT Sat Aug 24 16:03:57 CDT 2013
x86_64 Intel(R) Core(TM) i5 CPU 760 @ 2.80GHz GenuineIntel GNU/Linux

ostara ~ # emerge -pvuND world
These are the packages that would be merged, in order:
Calculating dependencies... done!
Total: 0 packages, Size of downloads: 0 kB

ostara lxc # virsh -c lxc:/// start dwj-hfax-dev
error: Failed to start domain dwj-hfax-dev
error: internal error: guest failed to start: PATH=/bin:/sbin TERM=linux
container=lxc-libvirt container_uuid=681410de-7b56-41bd-b38d-3c66ce97e7b3
LIBVIRT_LXC_UUID=681410de-7b56-41bd-b38d-3c66ce97e7b3
LIBVIRT_LXC_NAME=dwj-hfax-dev /sbin/init
error receiving signal from container: Input/output error

ostara ~ # tail /var/log/libvirt/lxc/dwj-hfax-dev.log
2013-09-10 13:56:22.767+0000: starting up
PATH=/bin:/sbin:/bin:/sbin:/usr/bin:/usr/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/opt/bin:/usr/x86_64-pc-linux-gnu/gcc-bin/4.6.3:/usr/x86_64-pc-linux-gnu/i686-pc-mingw32/gcc-bin/4.7.3
LIBVIRT_DEBUG=3 LIBVIRT_LOG_OUTPUTS=3:file:/var/log/libvirt/libvirtd.log
/usr/libexec/libvirt_lxc --name dwj-hfax-dev --console 20 --security=none
--handshake 23 --background --veth veth1
PATH=/bin:/sbin TERM=linux container=lxc-libvirt
container_uuid=681410de-7b56-41bd-b38d-3c66ce97e7b3
LIBVIRT_LXC_UUID=681410de-7b56-41bd-b38d-3c66ce97e7b3
LIBVIRT_LXC_NAME=dwj-hfax-dev /sbin/init
error receiving signal from container: Input/output error

ostara ~ # tail /var/log/libvirt/libvirtd.log
2013-09-10 13:56:22.998+0000: 12948: info : libvirt version: 1.1.2
2013-09-10 13:56:22.998+0000: 12948: error : virLXCControllerRun:2186 :
error receiving signal from container: Input/output error
2013-09-10 13:56:23.053+0000: 12948: error : virCommandWait:2348 : internal
error: Child process (ip link del veth1) unexpected exit status 1: Cannot
find device "veth1"

2013-09-10 13:56:23.097+0000: 10451: error : virNetSocketReadWire:1369 :
Cannot recv data: Connection reset by peer
2013-09-10 13:56:23.153+0000: 10453: error : virLXCProcessStart:1234 :
internal error: guest failed to start: PATH=/bin:/sbin TERM=linux
container=lxc-libvirt container_uuid=681410de-7b56-41bd-b38d-3c66ce97e7b3
LIBVIRT_LXC_UUID=681410de-7b56-41bd-b38d-3c66ce97e7b3
LIBVIRT_LXC_NAME=dwj-hfax-dev /sbin/init
error receiving signal from container: Input/output error

2013-09-10 13:56:23.343+0000: 10453: error : virCommandWait:2348 : internal
error: Child process (ip link del veth1) unexpected exit status 1: Cannot
find device "veth1"

(first occurrence of "veth1" in my libvirtd logs)
ostara ~ # grep -a veth1 /var/log/libvirt/libvirtd.log  | head -1
2013-09-10 13:51:55.333+0000: 9742: error : virCommandWait:2348 : internal
error: Child process (ip link del veth1) unexpected exit status 1: Cannot
find device "veth1"

ostara ~ # which ip
/bin/ip

ostara ~ # equery b /bin/ip
 * Searching for /bin/ip ...
sys-apps/iproute2-3.8.0 (/bin/ip)

ostara ~ # ls -l /bin/ip
-rwxr-xr-x 1 root root 282616 May  4 04:08 /bin/ip

ostara ~ # ifconfig -a | grep "^[a-z]"
br0: flags=4355<UP,BROADCAST,PROMISC,MULTICAST>  mtu 1500
br1: flags=4419<UP,BROADCAST,RUNNING,PROMISC,MULTICAST>  mtu 1500
enp4s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
enp5s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
enp6s2: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
virbr0: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500

ostara ~ # virsh -c lxc:/// dumpxml dwj-hfax-dev
<domain type='lxc'>
  <name>dwj-hfax-dev</name>
  <uuid>681410de-7b56-41bd-b38d-3c66ce97e7b3</uuid>
  <memory unit='KiB'>4194304</memory>
  <currentMemory unit='KiB'>4194304</currentMemory>
  <vcpu placement='static'>4</vcpu>
  <resource>
    <partition>/machine</partition>
  </resource>
  <os>
    <type arch='x86_64'>exe</type>
    <init>/sbin/init</init>
  </os>
  <clock offset='utc'/>
  <on_poweroff>destroy</on_poweroff>
  <on_reboot>restart</on_reboot>
  <on_crash>destroy</on_crash>
  <devices>
    <emulator>/usr/libexec/libvirt_lxc</emulator>
    <filesystem type='mount' accessmode='passthrough'>
      <source dir='/vm/lxc/dwj-hfax-dev'/>
      <target dir='/'/>
    </filesystem>
    <filesystem type='mount' accessmode='passthrough'>
      <source dir='/usr/portage'/>
      <target dir='/usr/portage'/>
    </filesystem>
    <filesystem type='mount' accessmode='passthrough'>
      <source dir='/usr/src'/>
      <target dir='/usr/src'/>
    </filesystem>
    <filesystem type='mount' accessmode='passthrough'>
      <source dir='/home'/>
      <target dir='/home'/>
    </filesystem>
    <interface type='bridge'>
      <mac address='82:00:00:00:01:01'/>
      <source bridge='br0'/>
    </interface>
    <console type='pty'>
      <target type='lxc' port='0'/>
    </console>
  </devices>
</domain>
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