[root@kunpeng82 ~]# ovs-vsctl add-br br1



^C2020-07-02T10:28:04Z|00002|fatal_signal|WARN|terminating with signal 2 (Interrupt)

[root@kunpeng82 ~]# ovs-vsctl del-br br1
^C2020-07-02T10:28:33Z|00002|fatal_signal|WARN|terminating with signal 2 (Interrupt)

[root@kunpeng82 ~]# ovs-vsctl del-br br1
ovs-vsctl: no bridge named br1
[root@kunpeng82 ~]# ovs-vsctl add-br br1
^C2020-07-02T10:31:35Z|00002|fatal_signal|WARN|terminating with signal 2 (Interrupt)

[root@kunpeng82 ~]# ovs-vsctl del-br br1
^C2020-07-02T10:31:37Z|00002|fatal_signal|WARN|terminating with signal 2 (Interrupt)

[root@kunpeng82 ~]# strace -v -ttt -s 2048 -Ff -o ovs-vsctl.trace ovs-vsctl add-br br1
bash: strace: command not found
[root@kunpeng82 ~]# yum -y install strace