Cannot find device "n6"
2021-06-25T16:02:42Z [INFO][UPF][Util] Config: /free5gc/config/..2021_06_25_15_57_12.078275784/upfcfg.yaml
2021-06-25T16:02:42Z [INFO][UPF][Util] UPF config version [1.0.0]
2021-06-25T16:02:42Z [INFO][UPF][Util] Set log level: info
2021-06-25T16:02:42Z [ERRO][UPF][Util] Socket bind fail : Cannot assign requested address
2021-06-25T16:02:42Z [ERRO][UPF][Util] Socket -1 register event in epoll error : Bad file descriptor
2021-06-25T16:02:42Z [ERRO][UPF][Util] UPDK epoll register error
2021-06-25T16:02:42Z [ERRO][UPF][Util] Pool is full, it may not belong to this pool
2021-06-25T16:02:42Z [ERRO][UPF][Util] Gtp5gDeviceAdd failed
2021-06-25T16:02:42Z [ERRO][UPF][Util] Socket bind fail : Cannot assign requested address
2021-06-25T16:02:42Z [ERRO][UPF][Util] Socket -1 register event in epoll error : Bad file descriptor
2021-06-25T16:02:42Z [ERRO][UPF][Util] PFCP Sock Register to epoll error
2021-06-25T16:02:42Z [ERRO][UPF][Util] Create PFCP Server for IPv4 error
2021-06-25T16:02:42Z [ERRO][UPF][Util] UPF - PFCP error when UPF initializes
2021-06-25T16:02:42Z [ERRO][UPF][Util] UPF failed to initialize
2021-06-25T16:02:42Z [ERRO][UPF][Util] Pool is full, it may not belong to this pool
2021-06-25T16:02:42Z [INFO][UPF][Util] Removing DNN routes
2021-06-25T16:02:42Z [ERRO][UPF][Util] if_nametoindex
2021-06-25T16:02:42Z [ERRO][UPF][Util] Delete routing rule to device upfgtp failed: 10.1.0.0/17
2021-06-25T16:02:42Z [ERRO][UPF][Util] UPDK epoll deregister error
/free5gc/config/wrapper.sh: line 10:    11 Segmentation fault      (core dumped) /free5gc/free5gc-upfd/free5gc-upfd -f /free5gc/config/upfcfg.yaml