[ovs-discuss] Compiled but invalid module format error

[Jesse Gross]

On Mon, Jun 21, 2010 at 6:54 PM, kk yap <yapkke at stanford.edu> wrote:

> Hi,
>
> I am trying to use Open vSwitch with Linux kernel 2.6.27-14-generic.
> The autoconf and compilation went fine, but insmod results in an
> invalid module format error.  Attached is the config.log.  Any advice
> on how to get this done would be useful.
>

It usually means that the kernel, compiler, or kernel config is different.
 You could try running modinfo on both openvswitch_mod.ko and one of the
modules that does load on your kernel and see if there are differences in
vermagic.

You can also get that message if there are duplicate symbols so you should
check the output of dmesg to see if there is more information.
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