fix init work bug

kernel_wtimer_num to volatile

source/module/monitor_kernel_lib.c

@@ -305,6 +305,17 @@ int start_watch_variable(watch_arg warg) {
   return 0;
 }
 
+void init_work_all_hrTimer(void) {
+  int i = 0;
+  kernel_watch_timer *timer = NULL;
+  for (i = 0; i < kernel_wtimer_num; i++) {
+    timer = &(kernel_wtimer_list[i]);
+    // init work
+    INIT_WORK(&timer->wk, diag_task_info_work);
+  }
+  // printk(KERN_INFO "HrTimer work init,module keep %d hrtimer for now\n", kernel_wtimer_num);
+}
+
 /**
  * @brief clear watch with pid
  *
@@ -315,6 +326,7 @@ void clear_watch(pid_t pid) {
   cancel_all_hrTimer();      // just in case
   del_all_kwarg_by_pid(pid); // delete all kwarg with pid
   free_page_list(pid);       // free page with pid
+  init_work_all_hrTimer();
   start_all_hrTimer();       // restart timer
 }
 
@@ -342,11 +354,11 @@ enum hrtimer_restart check_variable_cb(struct hrtimer *timer) {
   if (j > 0) // if any threshold reached
   {
     k_watch_timer->threshold_num = j;
+    // highpri_wq
+    queue_work(system_highpri_wq, &k_watch_timer->wk);
     // restart timer after 5s
     hrtimer_forward(timer, timer->base->get_time(),
                     ktime_set(dump_reset_sec, 0)); //! todo
-    // highpri_wq
-    queue_work(system_highpri_wq, &k_watch_timer->wk);
   } else {
     // keep frequency
     hrtimer_forward(timer, timer->base->get_time(), k_watch_timer->kt);