make -C tools/testing/selftests TARGETS="net" TEST_PROGS=fdb_notify.sh TESST_GEN_PROGS="" run_tests

DETECTED CRASH, lowering timeout
make: Entering directory '/home/virtme/testing-3/tools/testing/selftests'
make[1]: Entering directory '/home/virtme/testing-3/tools/testing/selftests/net'
make[1]: Nothing to be done for 'all'.
make[1]: Leaving directory '/home/virtme/testing-3/tools/testing/selftests/net'
make[1]: Entering directory '/home/virtme/testing-3/tools/testing/selftests/net'
TAP version 13
1..1
# overriding timeout to 7200
# selftests: net: fdb_notify.sh
# 1.93 [+1.93] TEST: bridge add: Duplicate notifications                           [ OK ]
# 3.54 [+1.60] TEST: bridge del: Duplicate notifications                           [ OK ]
# 6.23 [+2.69] TEST: vxlan add: Duplicate notifications                            [ OK ]
# 7.81 [+1.59] TEST: vxlan del: Duplicate notifications                            [ OK ]
# 10.79 [+2.98] TEST: vxlan master add: Duplicate notifications                     [ OK ]
# 12.40 [+1.61] TEST: vxlan master del: Duplicate notifications                     [ OK ]
# 15.18 [+2.78] TEST: macvlan self add: Duplicate notifications                     [ OK ]
# 16.78 [+1.60] TEST: macvlan self del: Duplicate notifications                     [ OK ]
# 19.70 [+2.92] TEST: macvlan master add: Duplicate notifications                   [ OK ]
# 21.31 [+1.61] TEST: macvlan master del: Duplicate notifications                   [ OK ]
ok 1 selftests: net: fdb_notify.sh
make[1]: Leaving directory '/home/virtme/testing-3/tools/testing/selftests/net'
make: Leaving directory '/home/virtme/testing-3/tools/testing/selftests'
xx__-> echo $?
0
xx__->