[ovs-discuss] openvswitch: module verification failed: signature and/or required key missing - tainting kernel

俊 赵 zhaojun12 at outlook.com
Fri Jul 10 15:16:20 UTC 2015


Hi, OVS group
I have installed OVS in Amazon EC2 with OS RHEL7.0.
and I create a bridge called OVS-SWITCH, and the only NIC eth0 to the bridge, also configure the IP address and route of OVS-SWITCH.
but as soon as I execute add-port commands, I lose connection with my VM.
Using get system log, I get the following logs:
[ 4.837620] alg: No test for crc32 (crc32-pclmul)[ 5.075279] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready[ 5.523745] gre: GRE over IPv4 demultiplexor driver[ 5.576857] openvswitch: module verification failed: signature and/or required key missing - tainting kernel[ 5.584415] openvswitch: Open vSwitch switching datapath 2.3.2[ 5.648948] device ovs-system entered promiscuous mode[ 5.652820] openvswitch: netlink: Key attribute has unexpected length (type=62, length=4, expected=0).[ 5.663333] device eth0 entered promiscuous mode[ 5.715595] device OVS-SWITCH entered promiscuous modeI wonder what is the reason causing failure in red line? Does the red line has relationship with my lost connection?
Many thanks.

Zhao Jun 		 	   		  
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