Hi OVS Developers and Maintainers - Probably, there is a bug with latest OVS version on Ubuntu 12.04 with Linux kernel 3.11.
Linux version: Linux arldcn1 3.11.0-12-generic #19-Ubuntu SMP Wed Oct 9 16:20:46 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux OVS version: ovs-vswitchd (Open vSwitch) 2.1.2 Compiled Jun 10 2014 12:56:11 OpenFlow versions 0x1:0x1 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 Running "/sbin/modinfo /lib/modules/`uname -r`/kernel/net/bridge/bridge.ko", I got - filename: /lib/modules/3.11.0-12-generic/kernel/net/bridge/bridge.ko alias: rtnl-link-bridge version: 2.3 license: GPL srcversion: 587204CB95D88E1FCBB8FCD depends: stp,llc intree: Y vermagic: 3.11.0-12-generic SMP mod_unload modversions Regards, Keqiang He
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