[pkg-lxc-devel] Bug#837743: lxc: Segfault (symbol size mismatch) when starting container created with "download" template

[Evgeni Golov]

control: tag -1 moreinfo
Hi Michael,

On Tue, Sep 13, 2016 at 10:29:39PM -0700, Michael Gardner wrote:
> I created an unpriviliged Ubuntu (xenial, amd64) container using "lxc-create -n foo -t download", and it seemed to complete with no problems. But when I try to start this container using "lxc-start -n foo", I get this error:
> 
> >lxc-start: Symbol `ns_info' has different size in shared object, consider re-linking
> >Segmentation fault
> 
> Lxc doesn't provide any more logging information or output, even when I set --logpriority to something high. I also tried creating a Debian (sid, amd64) container using the download template and got the same error.

Thanks for the report.

Sadly, I cannot reproduce it here on Sid:

evgeni at debian:~$ lxc-create -n foo -t download -- -d ubuntu -r xenial -a amd64
evgeni at debian:~$ lxc-start -n foo
evgeni at debian:~$ lxc-attach -n foo
root at foo:/# uname -a
Linux foo 4.7.0-1-amd64 #1 SMP Debian 4.7.2-1 (2016-08-28) x86_64 x86_64
x86_64 GNU/Linux
root at foo:/# exit
evgeni at debian:~$ lxc-stop -n foo
evgeni at debian:~$ 

ns_info is an internal LXC symbol, so I wonder how it fails the size
check for you. :(

Greets
Evgeni