Create/start 2 threads
Thread 1: Entered (10/20)
Thread 1: foo(), TLS data=0 2 "-1-"
Thread 2: Entered (10/20)
Thread 2: foo(), TLS data=1 4 "-2-"
Thread 2: bar(), TLS data=1 4 "-2-"
Thread 1: bar(), TLS data=0 2 "-1-"
Main completed