[pid  7140] ptrace(PTRACE_GETREGS, 7164, NULL, 0x42002296e0 <unfinished ...>
[pid  7135] sched_yield( <unfinished ...>
[pid  7140] <... ptrace resumed> )      = 0
[pid  7135] <... sched_yield resumed> ) = 0
[pid  7140] epoll_wait(12,  <unfinished ...>
[pid  7135] epoll_wait(17,  <unfinished ...>
[pid  7140] <... epoll_wait resumed> [], 64, 0) = 0
[pid  7135] <... epoll_wait resumed> [], 64, 0) = 0
[pid  7140] epoll_wait(12,  <unfinished ...>
[pid  7135] epoll_wait(17,  <unfinished ...>
[pid  7134] <... futex resumed> )       = 0
[pid  7134] futex(0x273d2d0, FUTEX_WAKE_PRIVATE, 1) = 0
[pid  7134] poll([{fd=1, events=POLLOUT}], 1, 0) = 1 ([{fd=1, revents=POLLOUT}])
[pid  7134] write(1, "[7164] Exited syscall: KnownSysc"..., 233) = 233
[pid  7134] ptrace(PTRACE_SYSCALL, 7164, NULL, SIG_0) = -1 ESRCH (No such process)