13243 gettid() = 13243
13243 +++ exited with 0 +++
13248 gettid() = 2 /* 13248 in strace's PID NS */
13248 +++ exited with 0 +++
13271 gettid() = 3 /* 13271 in strace's PID NS */
13271 +++ exited with 0 +++
13289 gettid() = 4 /* 13289 in strace's PID NS */
13289 +++ exited with 0 +++
13308 gettid() = 5 /* 13308 in strace's PID NS */
13308 +++ exited with 0 +++
