make -C tools/testing/selftests TARGETS=drivers/net/netdevsim TEST_PROGS=ppeer.sh TEST_GEN_PROGS="" run_tests make: Entering directory '/home/virtme/testing-14/tools/testing/selftests' make[1]: Entering directory '/home/virtme/testing-14/tools/testing/selftests/drivers/net/netdevsim' make[1]: Nothing to be done for 'all'. make[1]: Leaving directory '/home/virtme/testing-14/tools/testing/selftests/drivers/net/netdevsim' make[1]: Entering directory '/home/virtme/testing-14/tools/testing/selftests/drivers/net/netdevsim' TAP version 13 1..1 # overriding timeout to 2400 # selftests: drivers/net/netdevsim: peer.sh [ 1238.383949][T11265] netdevsim netdevsim606 eni606np1: renamed from eth1 [ 1238.391138][T11267] netdevsim netdevsim508 eni508np1: renamed from eth0 [ 1241.848570][T11259] Could not find device with ifindex 2000 in netnsfd 11 [ 1241.849478][T11259] Could not find netns with fd: 2000 [ 1241.850162][T11259] Cannot link a netdevsim to itself [ 1241.851021][T11259] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint). # 2024/02/17 07:31:28 socat[11289] E connect(7, AF=2 192.168.1.1:1234, 16): Connection refused # expected 3 bytes, got 0 not ok 1 selftests: drivers/net/netdevsim: peer.sh # exit=1 make[1]: Leaving directory '/home/virtme/testing-14/tools/testing/selftests/drivers/net/netdevsim' make: Leaving directory '/home/virtme/testing-14/tools/testing/selftests' xx__-> echo $? 0 xx__->