She navigated to /bin on her development machine. No conscience . But the rcore stats showed something else: the idle task had been making stat calls too. Checking file permissions. Waiting.
She ran rcore-stats --live --pid 0 one last time. rcore stats
The output was a hexdump of the idle task’s stack and heap. At first, it looked like random noise—old process tables, leftover file descriptors, a fragment of a shell command. But then she saw the pattern. She navigated to /bin on her development machine
“Impossible,” Lena whispered, her voice swallowed by the empty lab. She rubbed her eyes. A syscall meant a deliberate transition from user mode to kernel mode. The idle task never leaves kernel mode. It physically cannot make a system call. leftover file descriptors