9162  gettid() = 9162
9162  +++ exited with 0 +++
9167  gettid() = 2 /* 9167 in strace's PID NS */
9167  +++ exited with 0 +++
9175  gettid() = 3 /* 9175 in strace's PID NS */
9175  +++ exited with 0 +++
9186  gettid() = 4 /* 9186 in strace's PID NS */
9186  +++ exited with 0 +++
9194  gettid() = 5 /* 9194 in strace's PID NS */
9194  +++ exited with 0 +++
