Re: [libvirt] With different libvirt version, lxc-enter-namespace return Different Execution results.
On Thu, Aug 08, 2013 at 05:00:38PM +0800, hzguanqiang(a)corp.netease.com wrote:
On 2013-08-08 16:53 , Daniel P. Berrange wrote:
On Thu, Aug 08, 2013 at 03:56:35PM +0800, hzguanqiang(a)corp.netease.com wrote:
> But when I did the same thing under libvirt of version 1.1.0 with debian host OS,
the execution result changed:
>
> #disk info of host
> hzguanqiang@debian:~$ df -hl
> Filesystem Size Used Avail Use%
Mounted on
> rootfs 4.0G 1.6G 2.2G 42% /
> udev 10M 0 10M 0% /dev
> tmpfs 4.8G 468K 4.8G 1% /run
> /dev/disk/by-uuid/12bb656b-4f80-4386-aa07-4bf90a3111b4 4.0G 1.6G 2.2G 42% /
> tmpfs 5.0M 4.0K 5.0M 1%
/run/lock
> tmpfs 9.9G 0 9.9G 0%
/run/shm
> /dev/sda8 428G 112G 313G 27% /home
> /dev/sda6 7.9G 159M 7.8G 2% /tmp
> /dev/sda5 16G 2.7G 14G 17% /var
> cgroup_root 24G 0 24G 0%
/sys/fs/cgroup
> /dev/nbd5 1.4G 851M 466M 65%
/home/openstack/stack/data/nova/instances/eed45ccb-3707-4815-9ae4-c7a2f56adb64/rootfs
> hzguanqiang@debian:~$ vir lxc-enter-namespace instance-00000037 --noseclabel
/bin/df -hl
> Filesystem Size Used Avail Use%
Mounted on
> rootfs 4.0G 1.6G 2.2G 42% /
> udev 10M 0 10M 0% /dev
> tmpfs 4.8G 468K 4.8G 1% /run
> /dev/disk/by-uuid/12bb656b-4f80-4386-aa07-4bf90a3111b4 4.0G 1.6G 2.2G 42% /
> tmpfs 5.0M 4.0K 5.0M 1%
/run/lock
> tmpfs 9.9G 0 9.9G 0%
/run/shm
> /dev/sda8 428G 112G 313G 27% /home
> /dev/sda6 7.9G 159M 7.8G 2% /tmp
> /dev/sda5 16G 2.7G 14G 17% /var
> cgroup_root 24G 0 24G 0%
/sys/fs/cgroup
> /dev/nbd5 1.4G 851M 466M 65%
/home/openstack/stack/data/nova/instances/eed45ccb-3707-4815-9ae4-c7a2f56adb64/rootfs
What does 'ls /proc/self/ns' show on the host ?
Also what is your guest XML configuration for 'intsance-0000000037' ?
Daniel
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Hi Daniel,
The info you want to see are as following:
hzguanqiang@debian:~$ ls /proc/self/ns
ipc net uts
That's your problem. The kernel you are running on is too old to support
attaching to the mount namespace. You need to see 'mnt' in the files
there, and also 'pid' and 'user' too for completeness.
Daniel
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