On Wed, Sep 11, 2013 at 3:52 AM, Gao feng <gaofeng@cn.fujitsu.com> wrote:

On 09/11/2013 04:44 PM, Daniel P. Berrange wrote:
> On Tue, Sep 10, 2013 at 09:09:44AM -0500, Dennis Jenkins wrote:
>> 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.
>
> We'll need you to increase the log level to get more detail in this
> file.
>
> 1. Stop the 'libvirtd' daemon
>
> 2. Edit /etc/libvirt/lxc.conf and set log_with_libvirtd=1
>
> 3. Run
>
> $ LIBVIRT_LOG_FILTERS=1:lxc LIBVIRT_LOG_OUTPUTS=1:stderr /usr/sbin/libvirtd
>
> 4. rm -f /var/log/libvirt/lxc/dwj-hfax-dev.log
>
> 5. Try to start your guest with virsh
>
>
> Now send us the much more verbose logfile that was created

Dennis has already knew what's wrong with his environment,
his kernel doesn't support securityfs. libvirt should handle this problem.

I already have logs with that level of debug logging:
ostara ~ # grep "log_with_libvirtd" /etc/libvirt/lxc.conf
log_with_libvirtd = 1

If it would be useful, I can revert my kernel, reboot, and run libvirtd with the extra env vars set, as listed above. Just let me know. :)

I still have the logs from before I upgrades to "libvirt-1.1.2-r1" (lxc worked for me), and after (libvirt failed). I've had the extra logging turned on since last spring when you guys helped me then. There is not much interesting (to me anyway) in the log file:

### last known LXC boot before it broke

2013-07-31 12:49:08.362+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 24 --security=none --handshake 27 --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

### first attempt to boot LXC after upgrading my kernel and libvirt:

2013-09-10 13:51:54.977+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 21 --security=none --handshake 24 --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