Wrong isKernelPid check about audit-kubernetes HOT 2 CLOSED

// Ensures the system container is created and all non-kernel threads and process 1
// without a container are moved to it.
//
// The reason of leaving kernel threads at root cgroup is that we don't want to tie the
// execution of these threads with to-be defined /system quota and create priority inversions.
//
func ensureSystemCgroups(rootCgroupPath string, manager *fs.Manager) error {

	// SystemCgroups is absolute name of cgroups in which to place
	// all non-kernel processes that are not already in a container. Empty
	// for no container. Rolling back the flag requires a reboot.
	SystemCgroups 

package main

import (
    "fmt"
    "strconv"
    "os"
)

func main() {
    pid, _ := strconv.Atoi(os.Args[1])
    fmt.Printf("isKernelPid(%d) = %v\n", pid, isKernelPid(pid))
}

// Determines whether the specified PID is a kernel PID.
func isKernelPid(pid int) bool {
	// Kernel threads have no associated executable.
	a, err := os.Readlink(fmt.Sprintf("/proc/%d/exe", pid))
    fmt.Printf("readlink='%v', err='%v'\n", a, err)
	return err != nil
}```