thanks for pointing out this. Yes, it works fine after those two modules are loaded - I did not notice that.
Keqiang On Tue, Jun 10, 2014 at 7:55 PM, Daniele Di Proietto <ddiproie...@vmware.com > wrote: > > On Jun 10, 2014, at 2:45 PM, Keqiang He <hekeqi...@gmail.com> wrote: > > Bug/Error : > insmod ./datapath/linux/openvswitch.ko, I got "Error: could not insert > module ./datapath/linux/openvswitch.ko: Unknown symbol in module”. > > Running "dmesg tail", I got the following - > 6983759.520274] openvswitch: Open vSwitch switching datapath > [6995650.759804] openvswitch: Unknown symbol gre_cisco_register (err 0) > [6995650.759891] openvswitch: Unknown symbol gre_cisco_unregister (err 0) > [6995650.759957] openvswitch: Unknown symbol crc32c (err 0) > > Running "modinfo openvswitch.ko", I got - > filename: > /root/openvswitch/openvswitch-2.1.2/./datapath/linux/openvswitch.ko > version: 2.1.2 > license: GPL > description: Open vSwitch switching datapath > srcversion: 36BADD76E144180AB0D135E > depends: libcrc32c,gre > vermagic: 3.11.0-12-generic SMP mod_unload modversions > > > This probably happens because the kernel modules ‘libcrc32c' and ‘gre' are > not loaded. The output from modinfo shows that openvswitch.ko depends on > them: they must be loaded before openvswitch.ko (modprobe libcrc32c; > modprobe gre). > > Alternatively, you can install (make install) the kernel module and use > ‘modprobe’, which will automatically load all the required dependencies, > instead of ‘insmod'. > > Daniele >
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