remove swirq

source/module/monitor_kernel.c

@@ -12,16 +12,16 @@
 
 #include <linux/interrupt.h>
 
-enum {
-    MY_SOFTIRQ = 11, // 这个值是示例，确保它没有被其他软中断使用
-};
+// enum {
+//     MY_SOFTIRQ = 11, // 这个值是示例，确保它没有被其他软中断使用
+// };
 
-static void my_softirq_handler(struct softirq_action *action)
-{
-    // 这是软中断处理函数，它不能睡眠，必须快速执行
-    // 在这里调用 get_raw_stack
-    diag_task_all();
-}
+// static void my_softirq_handler(struct softirq_action *action)
+// {
+//     // 这是软中断处理函数，它不能睡眠，必须快速执行
+//     // 在这里调用 get_raw_stack
+//     diag_task_all();
+// }
 
 // for character device
 static dev_t dev_num;
@@ -190,7 +190,7 @@ int init_module(void) {
   // orig_X | buffer
   monitor_init();
 
-  orig_open_softirq(MY_SOFTIRQ, my_softirq_handler);
+  // orig_open_softirq(MY_SOFTIRQ, my_softirq_handler);
 
   return 0;
 }

source/module/monitor_kernel.h

@@ -37,6 +37,6 @@ check_variable_cb(struct hrtimer *timer); // hrtimer callback
 // for test
 int diag_pid(int id);  // for test
 int diag_tgid(int id); // for test
-void diag_task_info(kernel_watch_timer *k_watch_timer);
+void diag_task(kernel_watch_timer *k_watch_timer);
 void diag_task_all(void);
 void diag_task_by_tgid(pid_t tgid);

source/module/monitor_kernel_lib.c

@@ -122,6 +122,8 @@ static void diag_tsk(struct task_struct *p, variable_monitor_task *tsk_info) {
   diag_task_brief(p, &tsk_info->task);                      // task brief
   if (tsk_info->task.sys_task == 1) {                       // system task
     nr_bt = diag_task_kern_stack(p, &tsk_info->kern_stack); // kernel stack
+    dump_proc_chains_argv(1, p, &mm_tree_struct,
+                          &tsk_info->proc_chains);          // proc chains
   } else {                                                  // other task
     nr_bt = diag_task_kern_stack(p, &tsk_info->kern_stack); // kernel stack
     dump_proc_chains_argv(1, p, &mm_tree_struct,
@@ -207,6 +209,12 @@ static void clear_all_watch(void) {
   memset(kernel_wtimer_list, 0, sizeof(kernel_wtimer_list));
 }
 
+/**
+ * @brief all threshold reached info
+ * 
+ * @param k_watch_timer 
+ * @param is_print 
+ */
 static void diag_vm_record(kernel_watch_timer *k_watch_timer,
                            unsigned char is_print) {
 
@@ -262,6 +270,12 @@ static void diag_vm_record(kernel_watch_timer *k_watch_timer,
   }
 }
 
+
+/**
+ * @brief diag task by tgid
+ * 
+ * @param tgid 
+ */
 void diag_task_by_tgid(pid_t tgid) {
 
   struct task_struct *tsk;
@@ -299,9 +313,11 @@ void diag_task_by_tgid(pid_t tgid) {
   rcu_read_unlock();
 }
 
+/**
+ * @brief diag all task info
+ * 
+ */
 void diag_task_all(void) {
-  // pr_info("diag_task_all, tv %lld\n", ktime_get_real());
-
   static variable_monitor_task tsk_info;
 
   unsigned long event_id = get_cycles();
@@ -331,16 +347,20 @@ void diag_task_all(void) {
 
   diag_variant_buffer_spin_unlock(&load_monitor_variant_buffer, flags);
   rcu_read_unlock();
-  // pr_info("diag_task_all, finish tv %lld\n", ktime_get_real());
 }
 
-void diag_task_info(kernel_watch_timer *k_watch_timer) {
+/**
+ * @brief diag task entry
+ * 
+ * @param k_watch_timer 
+ */
+void diag_task(kernel_watch_timer *k_watch_timer) {
   if (k_watch_timer->threshold_over_count <= 0) // if no threshold reached
     return;
   pr_info("diag_stack, tv %lld\n", ktime_get_real());
-  if (sample_all) {
+  if (sample_all) { // sample all task
     diag_task_all();
-  } else {
+  } else { // only care threshold reached task
     int i;
     kernel_watch_arg *kwarg;
     for (i = 0; i < k_watch_timer->threshold_over_count; i++) {
@@ -353,14 +373,14 @@ void diag_task_info(kernel_watch_timer *k_watch_timer) {
 }
 
 /**
- * @brief diag task info, for work queue
+ * @brief diag task, for work queue
  *
  * @param work
  */
 void diag_task_info_work(struct work_struct *work) {
   kernel_watch_timer *k_watch_timer =
       container_of(work, kernel_watch_timer, wk);
-  diag_task_info(k_watch_timer);
+  diag_task(k_watch_timer);
 }
 
 /**
@@ -473,9 +493,6 @@ void clear_watch(pid_t pid) {
   start_all_hrTimer(); // restart timer
 }
 
-// enum {
-//     MY_SOFTIRQ = 11, // 这个值是示例，确保它没有被其他软中断使用
-// };
 
 /**
  * @brief main callback function
@@ -509,9 +526,9 @@ enum hrtimer_restart check_variable_cb(struct hrtimer *timer) {
     pr_info("threshold reached, tv %lld\n", k_watch_timer->tv);
     // highpri_wq
     queue_work(system_highpri_wq, &k_watch_timer->wk);
-    // diag_task_info(k_watch_timer);
     
-    // orig_raise_softirq(MY_SOFTIRQ); // for test
+    // diag_task(k_watch_timer);
+    // orig_raise_softirq(MY_SOFTIRQ); // for swirq test
 
     // restart timer after dump_reset_sec sec
     hrtimer_forward(timer, timer->base->get_time(),