[ovs-discuss] How to solve Unknown symbol issue while insmod ?

[Naveen M]

Hi,

Currently I'm working on openvswitch_2.5.1 in ubuntu16.04(kernel version
4.3.3-040303-generic). Whenever i give insmod openvswitch.ko i,m getting
error like below :

insmod: ERROR: could not insert module datapath/linux/openvswitch.ko:
Unknown symbol in module

dmesg log :
=======
[ 3881.697332] openvswitch: Unknown symbol udp_sock_create4 (err 0)
 [ 3881.697362] openvswitch: Unknown symbol __nf_ct_try_assign_helper (err
0)
 [ 3881.697385] openvswitch: Unknown symbol nf_ct_helper_ext_add (err 0)
 [ 3881.697413] openvswitch: Unknown symbol nf_connlabels_put (err 0)
 [ 3881.697493] openvswitch: Unknown symbol nf_connlabels_replace (err 0)
 [ 3881.697524] openvswitch: Unknown symbol nf_connlabels_get (err 0)
 [ 3881.697565] openvswitch: Unknown symbol __nf_ct_expect_find (err 0)
 [ 3881.697654] openvswitch: Unknown symbol __nf_conntrack_confirm (err 0)
 [ 3881.697673] openvswitch: Unknown symbol __nf_ct_ext_destroy (err 0)
 [ 3881.697695] openvswitch: Unknown symbol __nf_ct_ext_add_length (err 0)
 [ 3881.697717] openvswitch: Unknown symbol udp_tunnel_sock_release (err 0)
 [ 3881.697749] openvswitch: Unknown symbol setup_udp_tunnel_sock (err 0)
 [ 3881.697780] openvswitch: Unknown symbol nf_ct_deliver_cached_events
(err 0)
 [ 3881.697801] openvswitch: Unknown symbol crc32c (err 0)
 [ 3881.697829] openvswitch: Unknown symbol udp_tun_rx_dst (err 0)
 [ 3881.697853] openvswitch: Unknown symbol
nf_conntrack_helper_try_module_get (err 0)
 [ 3881.697872] openvswitch: Unknown symbol udp_tunnel_xmit_skb (err 0)
 [ 3881.697898] openvswitch: Unknown symbol nf_defrag_ipv6_enable (err 0)
 [ 3881.697920] openvswitch: Unknown symbol nf_ct_get_tuplepr (err 0)
 [ 3881.697960] openvswitch: Unknown symbol nf_conntrack_in (err 0)


How to fix this issue and why its happend? Can you please guide me on this?

*With Warm Regards,*
*Naveen M*
Mobile : +91 8883356187 | Skype : nvn.m7

"THINK GOOD, DO BETTER....!!!! "
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