13433 gettid() = 13433
13433 +++ exited with 0 +++
13436 gettid() = 2 /* 13436 in strace's PID NS */
13436 +++ exited with 0 +++
13443 gettid() = 3 /* 13443 in strace's PID NS */
13443 +++ exited with 0 +++
13450 gettid() = 4 /* 13450 in strace's PID NS */
13450 +++ exited with 0 +++
13457 gettid() = 5 /* 13457 in strace's PID NS */
13457 +++ exited with 0 +++
