Merge pull request #4738 from enkiller/0528-1028

[kernel] Improve kernel stability

Author: BernardXiong

src/ipc.c

@@ -124,6 +124,7 @@ rt_inline rt_err_t rt_ipc_list_suspend(rt_list_t        *list,
         break;
 
     default:
+        RT_ASSERT(0);
         break;
     }
 

src/thread.c

@@ -358,6 +358,8 @@ RTM_EXPORT(rt_thread_startup);
  */
 rt_err_t rt_thread_detach(rt_thread_t thread)
 {
+    rt_base_t lock;
+
     /* thread check */
     RT_ASSERT(thread != RT_NULL);
     RT_ASSERT(rt_object_get_type((rt_object_t)thread) == RT_Object_Class_Thread);
@@ -377,12 +379,18 @@ rt_err_t rt_thread_detach(rt_thread_t thread)
     /* release thread timer */
     rt_timer_detach(&(thread->thread_timer));
 
+    /* disable interrupt */
+    lock = rt_hw_interrupt_disable();
+
     /* change stat */
     thread->stat = RT_THREAD_CLOSE;
 
     /* detach thread object */
     rt_object_detach((rt_object_t)thread);
 
+    /* enable interrupt */
+    rt_hw_interrupt_enable(lock);
+
     return RT_EOK;
 }
 RTM_EXPORT(rt_thread_detach);