6348  gettid() = 6348
6348  +++ exited with 0 +++
6352  gettid() = 2 /* 6352 in strace's PID NS */
6352  +++ exited with 0 +++
6363  gettid() = 3 /* 6363 in strace's PID NS */
6363  +++ exited with 0 +++
6378  gettid() = 4 /* 6378 in strace's PID NS */
6378  +++ exited with 0 +++
6388  gettid() = 5 /* 6388 in strace's PID NS */
6388  +++ exited with 0 +++
