[ovs-discuss] openvswitch_mod: disagrees about version of symbol module_layout

[Daniel Philip]

Hi Ben,

Thanks for replying. I tried % /sbin/modinfo /lib/modules/`uname
-r`/kernel/net/bridge/bridge.ko and obtained the following

openflow at openflow:~/openvswitch-1.1.0pre2$ /sbin/modinfo
/lib/modules/2.6.32-28-generic/kernel/net/bridge/bridge.ko
filename:       /lib/modules/2.6.32-28-generic/kernel/net/bridge/bridge.ko
version:        2.3
license:        GPL
srcversion:     7F81763D8FF0740B7DEF245
depends:        stp
vermagic:       2.6.32-28-generic SMP mod_unload modversions 586


But, I could not find openvswitch_mod.ko under /sbin/modinfo.

Could you please assist ?

Thanks,
Daniel



On Thu, May 26, 2011 at 5:55 PM, Ben Pfaff <blp at nicira.com> wrote:

> On Thu, May 26, 2011 at 05:46:15PM +0200, Daniel Philip wrote:
> > I get the following message when I try to run openvswitch using
> "/sbin/insmod
> > ./datapath/linux-2.6/openvswitch_mod.ko"
> >
> > insmod: error inserting './datapath/linux-2.6/openvswitch_mod.ko': -1
> > Operation not permitted
> >
> > Hence, I tried dmesg | test and it shows the following message:
> >
> > openvswitch_mod: disagrees about version of symbol module_layout
> >
> > Could anyone please let me know what should I be doing to avoid this?
>
> I imagine that you built against some kernel version other than the
> one that is running.
>
> Run "modinfo" on openvswitch_mod.ko and on a module built for the
> running kernel, e.g.:
>
> % /sbin/modinfo openvswitch_mod.ko
> % /sbin/modinfo /lib/modules/`uname -r`/kernel/net/bridge/bridge.ko
>
> Compare the "vermagic" lines output by the two commands.  If they
> differ, then Open vSwitch was built for the wrong kernel.
>
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