We use packet-out to generate response packets. Recently we found an issue that may be related to ovsext driver: if in_port of the packet-out message is set to CONTROLLER (0xfffffffd), the Windows system will crash immediately. According to http://www.openvswitch.org//support/dist-docs/ovs-ofctl.8.txt, CONTROLLER should be a valid in_port number, and the same value works well on Linux.
The issue can be reproduced by the following command:
We use packet-out to generate response packets. Recently we found an issue that may be related to ovsext driver: if
in_portof the packet-out message is set toCONTROLLER(0xfffffffd), the Windows system will crash immediately. According to http://www.openvswitch.org//support/dist-docs/ovs-ofctl.8.txt,CONTROLLERshould be a valid in_port number, and the same value works well on Linux.The issue can be reproduced by the following command:
https://github.com/antrea-io/antrea/issues/4990 has more background about the issue.
cc @pweisong @wenyingd @xliuxu