Without this I qemu simply froze in a weird state for me if I kill it:
it was supposedly a zombie, but we'd get the pidfd POLLIN event for it
only once the fd is closed. Hence let's close it right-away.
(Smells like a kernel issue actually, but too lazy to bother with this).
_exit(EXIT_FAILURE);
}
+ /* Close the vsock fd we passed to qemu in the parent. We don't need it anymore. */
+ child_vsock_fd = safe_close(child_vsock_fd);
+
int exit_status = INT_MAX;
if (use_vsock) {
r = setup_notify_parent(event, vsock_fd, &exit_status, ¬ify_event_source);