[libvirt] libvirtd crashing with network bridge configuration

Emre Erenoglu erenoglu at gmail.com
Sat Dec 20 02:31:58 UTC 2008

Hi Again,

On Sat, Dec 20, 2008 at 12:25 AM, Emre Erenoglu <erenoglu at gmail.com> wrote:

> Hi Daniel,
> I'm very surprised. dnsmasq is not listed in the dependencies of libvirt as
> far as I know. I was guessing that it's a "nice to have" package, to enable
> DHCP IP distriPid: 2616, comm: libvirtd Tainted: P #1
> bution to guests. But even if it doesn't exist, I shall normally be able to
> assign static IP addresses manually to my guests.
> So if the system crashes due to dnsmasq, I would call it a bug instead.
> Nevertheless, I'll try to compile this package for our distro and see what
> happens.
> I'll keep you posted, thanks again a lot for your interest.

My suspections were correct. The dnsmasq does not have anything to do with
the crash. I installed the dnsmasq package and it works fine:

 2616 pts/1    S+     0:00 /usr/sbin/libvirtd
 2637 pts/1    S+     0:00 dnsmasq --keep-in-foreground --strict-order
--bind-interfaces --pid-file  --conf-file  --listen-address
--except-interface lo --dhcp-leasefile=/var/lib/libvirt/dhcp-d

However, I still have the crash in the dmesg output, as before, errors like:

sysfs: duplicate filename '0' can not be

------------[ cut here

WARNING: at fs/sysfs/dir.c:424 sysfs_add_one+0x34/0xa6()
Pid: 2616, comm: libvirtd Tainted: P #1
*kobject_add_internal failed for 0 with -EEXIST, don't try to register
things with the same name in the same directory.*
Pid: 2616, comm: libvirtd Tainted: P #1

The DEBUG output shows in the last lines:

DEBUG: util.c: virExec (dnsmasq --keep-in-foreground --strict-order
--bind-interfaces --pid-file  --conf-file  --listen-address
--except-interface lo --dhcp-leasefile=/var/lib/libvirt/dhcp-default.leases
DEBUG: lxc_container.c: lxcContainerAvailable (clone call returned Cannot
allocate memory, container support is not enabled)

I still suspect the compiler flags. Any suggestions? What about this last
DEBUG message regarding the container support?

Thanks a lot &  Best Regards,

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