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

[Sami Haahtinen]

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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.

- - s
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