[libvirt-users] 1.2.7 and 1.2.8 fail to start container: libvirt_lxc[4904]: segfault at 0 ip ...error 4 in libc-2.17.so[

[Michal Privoznik]

On 16.09.2014 17:40, mxs kolo wrote:
> HI all
>
> Centos 7,  3.10.0-123.6.3.el7.x86_64
> libvirt 1.27, libvirt 1.2.8 builded from source with
> ./configure --prefix=/usr
> make && make install
> LXC with direct network failed to start:
>
> Sep 16 19:19:38 node01 kernel: device br502 entered promiscuous mode
> Sep 16 19:19:39 node01 kernel: device br502 left promiscuous mode
> Sep 16 19:19:39 node01 avahi-daemon[1532]: Withdrawing workstation
> service for macvlan0.
> Sep 16 19:19:39 node01 kernel: XFS (dm-16): Mounting Filesystem
> Sep 16 19:19:39 node01 kernel: XFS (dm-16): Ending clean mount
> Sep 16 19:19:39 node01 kernel: libvirt_lxc[4904]: segfault at 0 ip
> 00007ffe3cbf0df6 sp 00007ffe3fa03c98 error 4 in
> libc-2.17.so[7ffe3cabf000+1b6000]
> Sep 16 19:19:39 node01 abrt-hook-ccpp: Saved core dump of pid 1
> (/usr/lib/systemd/systemd) to /var/tmp/abrt/ccpp-2014-09-16-19:19:39-1
> (716800 bytes)

This file would be interesting, can you:

gdb /usr/libexec/libvirt_lxc -c /var/tmp/abrt/ccpp-2014-09-16-19:19:39-1
(gdb shell should appear here)
(gdb) bt

and paste the backtrace here? That way we can identify where the lxc 
helper is crashing.

Michal