运行netperf会出现意外故障。知道是什么原因造成的吗？

Question

我得到了

tjcw:Downloads$ grep netserver run-all-6.txt
+ netserver_pid=623321
+ netserver -p 50000 -4
Starting netserver with host 'IN(6)ADDR_ANY' port '50000' and family AF_INET
+ netserver_pid=623938
+ netserver -p 50001 -4
Starting netserver with host 'IN(6)ADDR_ANY' port '50001' and family AF_INET
+ netserver_pid=624493
+ netserver -p 50002 -4
Starting netserver with host 'IN(6)ADDR_ANY' port '50002' and family AF_INET
+ netserver_pid=624680
+ netserver -p 50003 -4
Unable to start netserver with  'IN(6)ADDR_ANY' port '50003' and family AF_INET
+ netserver_pid=624805
+ netserver -p 50004 -4
Unable to start netserver with  'IN(6)ADDR_ANY' port '50004' and family AF_INET
+ netserver_pid=624892
+ netserver -p 50005 -4
Unable to start netserver with  'IN(6)ADDR_ANY' port '50005' and family AF_INET

也就是说，3次正常启动，3次失败，失败消息意味着什么？我的测试用例是https://github.com/tjcw/bpf-examples/blob/tjcw-integration-1.2/AF_XDP-过滤器/Run-all.sh，我正在使用Ubuntu22.04完全更新。

Answer 1

这是因为以前运行的netserver实例仍然存在。若要以受控方式终止netserver，必须从

netserver -D -f &

然后，您可以记录它的PID，并在时机成熟时用kill终止它。