Bug#388486: [Pkg-xen-devel] Bug#388486: xen-utils-common: upgrade new 2.6.17-2-xen breaks create domU until modprobe netloop nloopbacks=

[MDC Sylvain Amrani (BSA SDTI DGGN)]

Sami Haahtinen a écrit :
> Sylvain Amrani wrote:
> >> After a recent etch upgrade (2.6.17, xen-3.0.2) I was unable to "xm
> create" until I
> >> "modprobe netloop nloopbacks=10"
> >>
> >> Error was network-bridge couln't create vif interface (backend not
> found).
> >>
> >> brctl addbr ... fails because of no free netloop device.
> >> passing more nloopbacks device to the module fixed the problem.
>
> This is caused by the module netloop not being loaded. I had to manually
> add it to /etc/modules for things to work.
>
> Maybe network-bridge script should verify that this module is loaded or
> the support enabled inside the kernel.
Yes, I think it should, since :

# grep XEN_NETDEV_LOOPBACK /boot/config-2.6.16-2-xen-686
CONFIG_XEN_NETDEV_LOOPBACK=y
# grep XEN_NETDEV_LOOPBACK /boot/config-2.6.17-2-xen-686
CONFIG_XEN_NETDEV_LOOPBACK=m

Sure it would break every upgrades.

Regards,
Sylvain.