[Lxc-users] lxc-start: Device or resource busy - could not unmount old rootfs
Brian K. White
brian at aljex.com
Wed Apr 14 04:14:49 UTC 2010
Isn't this a known and fixed issue? Well, fixed enough for now anyway.
Daniel made a patch and I incorporated it into an opensuse build service
package that is just stock 0.6.5 with only that patch and my
startup/shutdown scripts, and have been using that package a lot ever
since with no problems.
The patch is attached.
The openSUSE package incorporating it is here:
http://download.opensuse.org/repositories/home:/aljex/openSUSE_11.2/x86_64/lxc-0.6.5-46.1.x86_64.rpm
--
bkw
On 4/13/2010 11:29 PM, Serge E. Hallyn wrote:
> Pier, the url you quote talks about only the second container
> failing. Is that your experience as well?
>
> Matt, yours fails on the very first container, right?
>
> Matt, can you confirm that downgrading to 0.6.3 (which does not
> use pivot_root iirc) works for you? I'll try to take a look on
> my own karmic server kvm instance this week.
>
> thanks,
> -serge
>
> Quoting Pier Fumagalli (pier at betaversion.org):
>> It seems to me this is pretty much what I'm seeing too with 0.6.5.
>>
>> http://www.mail-archive.com/lxc-users@lists.sourceforge.net/msg00029.html
>>
>> In my case, I downgraded to 0.6.3 and it works just fine.
>>
>> Pier
>>
>>
>> On Wed, Apr 14, 2010 at 05:33, Matt Bailey<mbailey at system42.net> wrote:
>>
>>> With lxc 0.6.5, I am having a problem starting a container. Here is
>>> the debug output. (FWIW, my /var is a separate partition on the host)
>>>
>>> # lxc-start -n test -l DEBUG -o $(tty)
>>> lxc-start 1271189821.303 INFO lxc_conf - tty's configured
>>> lxc-start 1271189821.303 DEBUG lxc_start - sigchild handler set
>>> lxc-start 1271189821.303 INFO lxc_start - 'test' is initialized
>>> lxc-start 1271189821.313 DEBUG lxc_conf - instanciated veth
>>> 'veth5RnMGB/veth28579F', index is '14'
>>> lxc-start 1271189821.394 DEBUG lxc_cgroup - using cgroup
>>> mounted at '/cgroup'
>>> lxc-start 1271189821.395 DEBUG lxc_cgroup - '/cgroup/2229'
>>> renamed to '/cgroup/test'
>>> lxc-start 1271189821.554 DEBUG lxc_conf - move 'br0' to '2229'
>>> lxc-start 1271189821.554 INFO lxc_conf - 'test' hostname has
>>> been setup
>>> lxc-start 1271189821.571 DEBUG lxc_conf - 'eth0' has been setup
>>> lxc-start 1271189821.571 INFO lxc_conf - network has been setup
>>> lxc-start 1271189821.571 DEBUG lxc_cgroup - using cgroup
>>> mounted at '/cgroup'
>>> lxc-start 1271189821.571 DEBUG lxc_conf - cgroup
>>> 'devices.deny' set to 'a'
>>> lxc-start 1271189821.572 DEBUG lxc_conf - cgroup
>>> 'devices.allow' set to 'c 1:3 rwm'
>>> lxc-start 1271189821.572 DEBUG lxc_conf - cgroup
>>> 'devices.allow' set to 'c 1:5 rwm'
>>> lxc-start 1271189821.572 DEBUG lxc_conf - cgroup
>>> 'devices.allow' set to 'c 5:1 rwm'
>>> lxc-start 1271189821.572 DEBUG lxc_conf - cgroup
>>> 'devices.allow' set to 'c 5:0 rwm'
>>> lxc-start 1271189821.572 DEBUG lxc_conf - cgroup
>>> 'devices.allow' set to 'c 4:0 rwm'
>>> lxc-start 1271189821.572 DEBUG lxc_conf - cgroup
>>> 'devices.allow' set to 'c 4:1 rwm'
>>> lxc-start 1271189821.572 DEBUG lxc_conf - cgroup
>>> 'devices.allow' set to 'c 1:9 rwm'
>>> lxc-start 1271189821.572 DEBUG lxc_conf - cgroup
>>> 'devices.allow' set to 'c 1:8 rwm'
>>> lxc-start 1271189821.572 DEBUG lxc_conf - cgroup
>>> 'devices.allow' set to 'c 136:* rwm'
>>> lxc-start 1271189821.572 DEBUG lxc_conf - cgroup
>>> 'devices.allow' set to 'c 5:2 rwm'
>>> lxc-start 1271189821.572 DEBUG lxc_conf - cgroup
>>> 'devices.allow' set to 'c 254:0 rwm'
>>> lxc-start 1271189821.572 INFO lxc_conf - cgroup has been setup
>>> lxc-start 1271189821.572 INFO lxc_conf - mount points have been
>>> setup
>>> lxc-start 1271189821.572 INFO lxc_conf - console
>>> '/dev/pts/0' mounted to '/var/lib/urizen-slicer/fs/test/dev/console'
>>> lxc-start 1271189821.572 INFO lxc_conf - 4 tty(s) has been setup
>>> lxc-start 1271189821.572 DEBUG lxc_conf - temporary
>>> mountpoint for old rootfs is './lxc-oldrootfs-y10fSV'
>>> lxc-start 1271189821.572 DEBUG lxc_conf - pivot_root syscall
>>> to '/lxc-oldrootfs-y10fSV' successful
>>> lxc-start 1271189821.573 DEBUG lxc_conf - umounted
>>> '/lxc-oldrootfs-y10fSV/dev/pts'
>>> lxc-start 1271189821.573 DEBUG lxc_conf - umounted
>>> '/lxc-oldrootfs-y10fSV/dev/shm'
>>> lxc-start 1271189821.573 DEBUG lxc_conf - umounted
>>> '/lxc-oldrootfs-y10fSV/sys/fs/fuse/connections'
>>> lxc-start 1271189821.573 DEBUG lxc_conf - umounted
>>> '/lxc-oldrootfs-y10fSV/sys/kernel/debug'
>>> lxc-start 1271189821.573 DEBUG lxc_conf - umounted
>>> '/lxc-oldrootfs-y10fSV/sys/kernel/security'
>>> lxc-start 1271189821.573 DEBUG lxc_conf - umounted
>>> '/lxc-oldrootfs-y10fSV/proc'
>>> lxc-start 1271189821.573 DEBUG lxc_conf - umounted
>>> '/lxc-oldrootfs-y10fSV/var/run'
>>> lxc-start 1271189821.573 DEBUG lxc_conf - umounted
>>> '/lxc-oldrootfs-y10fSV/var/lock'
>>> lxc-start 1271189821.573 DEBUG lxc_conf - umounted
>>> '/lxc-oldrootfs-y10fSV/lib/init/rw'
>>> lxc-start 1271189821.573 DEBUG lxc_conf - umounted
>>> '/lxc-oldrootfs-y10fSV/cgroup'
>>> lxc-start 1271189821.573 DEBUG lxc_conf - umounted
>>> '/lxc-oldrootfs-y10fSV/var/lib/urizen-slicer/fs/test/dev/console'
>>> lxc-start 1271189821.573 DEBUG lxc_conf - umounted
>>> '/lxc-oldrootfs-y10fSV/var/lib/urizen-slicer/fs/test/dev/tty1'
>>> lxc-start 1271189821.573 DEBUG lxc_conf - umounted
>>> '/lxc-oldrootfs-y10fSV/var/lib/urizen-slicer/fs/test/dev/tty2'
>>> lxc-start 1271189821.573 DEBUG lxc_conf - umounted
>>> '/lxc-oldrootfs-y10fSV/var/lib/urizen-slicer/fs/test/dev/tty3'
>>> lxc-start 1271189821.573 DEBUG lxc_conf - umounted
>>> '/lxc-oldrootfs-y10fSV/var/lib/urizen-slicer/fs/test/dev/tty4'
>>> lxc-start 1271189821.573 DEBUG lxc_conf - umounted
>>> '/lxc-oldrootfs-y10fSV/dev'
>>> lxc-start 1271189821.573 DEBUG lxc_conf - umounted
>>> '/lxc-oldrootfs-y10fSV/sys'
>>> lxc-start 1271189821.573 DEBUG lxc_conf - umounted
>>> '/lxc-oldrootfs-y10fSV/var'
>>> lxc-start 1271189821.573 ERROR lxc_conf - Device or resource
>>> busy - could not unmount old rootfs
>>> lxc-start: Device or resource busy - could not unmount old rootfs
>>> lxc-start 1271189821.573 ERROR lxc_conf - failed to
>>> pivot_root to '/var/lib/urizen-slicer/fs/test'
>>> lxc-start: failed to pivot_root to '/var/lib/urizen-slicer/fs/test'
>>> lxc-start 1271189821.573 ERROR lxc_conf - failed to set
>>> rootfs for 'test'
>>> lxc-start: failed to set rootfs for 'test'
>>> lxc-start 1271189821.573 ERROR lxc_start - failed to setup
>>> the container
>>> lxc-start: failed to setup the container
>>> lxc-start 1271189821.573 NOTICE lxc_start - '/sbin/init'
>>> started with pid '2229'
>>> lxc-start 1271189821.573 DEBUG lxc_utils - closing fd '1'
>>> lxc-start 1271189821.573 DEBUG lxc_utils - closing fd '0'
>>> lxc-start 1271189821.573 DEBUG lxc_utils - closed all
>>> inherited file descriptors
>>> lxc-start 1271189821.634 DEBUG lxc_start - child exited
>>> lxc-start 1271189821.634 INFO lxc_error - child<2229> ended
>>> on error (255)
>>> lxc-start 1271189821.634 DEBUG lxc_cgroup - using cgroup
>>> mounted at '/cgroup'
>>> lxc-start 1271189821.714 DEBUG lxc_cgroup - '/cgroup/test' unlinked
>>>
>>>
>>> Thanks,
>>> --
>>> Matt Bailey
>>>
>>>
>>> ------------------------------------------------------------------------------
>>> Download Intel® Parallel Studio Eval
>>> Try the new software tools for yourself. Speed compiling, find bugs
>>> proactively, and fine-tune applications for parallel performance.
>>> See why Intel Parallel Studio got high marks during beta.
>>> http://p.sf.net/sfu/intel-sw-dev
>>> _______________________________________________
>>> Lxc-users mailing list
>>> Lxc-users at lists.sourceforge.net
>>> https://lists.sourceforge.net/lists/listinfo/lxc-users
>>>
>
>> ------------------------------------------------------------------------------
>> Download Intel® Parallel Studio Eval
>> Try the new software tools for yourself. Speed compiling, find bugs
>> proactively, and fine-tune applications for parallel performance.
>> See why Intel Parallel Studio got high marks during beta.
>> http://p.sf.net/sfu/intel-sw-dev
>
>> _______________________________________________
>> Lxc-users mailing list
>> Lxc-users at lists.sourceforge.net
>> https://lists.sourceforge.net/lists/listinfo/lxc-users
>
>
> ------------------------------------------------------------------------------
> Download Intel® Parallel Studio Eval
> Try the new software tools for yourself. Speed compiling, find bugs
> proactively, and fine-tune applications for parallel performance.
> See why Intel Parallel Studio got high marks during beta.
> http://p.sf.net/sfu/intel-sw-dev
> _______________________________________________
> Lxc-users mailing list
> Lxc-users at lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/lxc-users
>
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