diff --git a/components/finsh/cmd.c b/components/finsh/cmd.c
index 139cd8d66946a69d7c057b0a5b1f0d91f6b1f010..1d9156ce4bd9c38fc1c598d6e0d982a8fac143d2 100644
--- a/components/finsh/cmd.c
+++ b/components/finsh/cmd.c
@@ -614,113 +614,6 @@ int list_module(void)
 }
 FINSH_FUNCTION_EXPORT(list_module, list module in system);
 MSH_CMD_EXPORT(list_module, list module in system);
-
-int list_mod_detail(const char *name)
-{
-    int i;
-    struct rt_module *module;
-
-    /* find module */
-    if ((module = rt_module_find(name)) != RT_NULL)
-    {
-        /* module has entry point */
-        if (!(module->parent.flag & RT_MODULE_FLAG_WITHOUTENTRY))
-        {
-            struct rt_thread *thread;
-            struct rt_list_node *tlist;
-            rt_uint8_t *ptr;
-
-            /* list main thread in module */
-            if (module->module_thread != RT_NULL)
-            {
-                rt_uint8_t stat;
-
-                rt_kprintf("main thread  pri  status      sp     stack size max used   left tick  error\n");
-                rt_kprintf("------------- ---- ------- ---------- ---------- ---------- ---------- ---\n");
-                thread = module->module_thread;
-                rt_kprintf("%-8.*s 0x%02x", RT_NAME_MAX, thread->name, thread->current_priority);
-
-                stat = (thread->stat & RT_THREAD_STAT_MASK);
-                if (stat == RT_THREAD_READY)        rt_kprintf(" ready  ");
-                else if (stat == RT_THREAD_SUSPEND) rt_kprintf(" suspend");
-                else if (stat == RT_THREAD_INIT)    rt_kprintf(" init   ");
-
-                ptr = (rt_uint8_t *)thread->stack_addr;
-                while (*ptr == '#')ptr ++;
-
-                rt_kprintf(" 0x%08x 0x%08x 0x%08x 0x%08x %03d\n",
-                           thread->stack_size + ((rt_uint32_t)thread->stack_addr - (rt_uint32_t)thread->sp),
-                           thread->stack_size,
-                           thread->stack_size - ((rt_uint32_t) ptr - (rt_uint32_t)thread->stack_addr),
-                           thread->remaining_tick,
-                           thread->error);
-            }
-
-            /* list sub thread in module */
-            tlist = &module->module_object[RT_Object_Class_Thread].object_list;
-            if (!rt_list_isempty(tlist)) _list_thread(tlist);
-#ifdef RT_USING_SEMAPHORE
-            /* list semaphored in module */
-            tlist = &module->module_object[RT_Object_Class_Semaphore].object_list;
-            if (!rt_list_isempty(tlist)) _list_sem(tlist);
-#endif
-#ifdef RT_USING_MUTEX
-            /* list mutex in module */
-            tlist = &module->module_object[RT_Object_Class_Mutex].object_list;
-            if (!rt_list_isempty(tlist)) _list_mutex(tlist);
-#endif
-#ifdef RT_USING_EVENT
-            /* list event in module */
-            tlist = &module->module_object[RT_Object_Class_Event].object_list;
-            if (!rt_list_isempty(tlist)) _list_event(tlist);
-#endif
-#ifdef RT_USING_MAILBOX
-            /* list mailbox in module */
-            tlist = &module->module_object[RT_Object_Class_MailBox].object_list;
-            if (!rt_list_isempty(tlist)) _list_mailbox(tlist);
-#endif
-#ifdef RT_USING_MESSAGEQUEUE
-            /* list message queue in module */
-            tlist = &module->module_object[RT_Object_Class_MessageQueue].object_list;
-            if (!rt_list_isempty(tlist)) _list_msgqueue(tlist);
-#endif
-#ifdef RT_USING_MEMHEAP
-            /* list memory heap in module */
-            tlist = &module->module_object[RT_Object_Class_MemHeap].object_list;
-            if (!rt_list_isempty(tlist)) _list_memheap(tlist);
-#endif
-#ifdef RT_USING_MEMPOOL
-            /* list memory pool in module */
-            tlist = &module->module_object[RT_Object_Class_MemPool].object_list;
-            if (!rt_list_isempty(tlist)) _list_mempool(tlist);
-#endif
-#ifdef RT_USING_DEVICE
-            /* list device in module */
-            tlist = &module->module_object[RT_Object_Class_Device].object_list;
-            if (!rt_list_isempty(tlist)) _list_device(tlist);
-#endif
-            /* list timer in module */
-            tlist = &module->module_object[RT_Object_Class_Timer].object_list;
-            if (!rt_list_isempty(tlist)) _list_timer(tlist);
-        }
-
-        if (module->nsym > 0)
-        {
-            rt_kprintf("symbol    address   \n");
-            rt_kprintf("-------- ----------\n");
-
-            /* list module export symbols */
-            for (i = 0; i < module->nsym; i++)
-            {
-                rt_kprintf("%s 0x%x\n",
-                           module->symtab[i].name, module->symtab[i].addr);
-            }
-        }
-    }
-
-    return 0;
-}
-FINSH_FUNCTION_EXPORT(list_mod_detail, list module objects in system)
 #endif
 
 long list(void)
diff --git a/components/finsh/msh.c b/components/finsh/msh.c
index b540698d9cb9e1ff3778dc2c9768b361a36aca04..26e0c9b5c77852e4e575765acb2107b6f7deeb73 100644
--- a/components/finsh/msh.c
+++ b/components/finsh/msh.c
@@ -333,7 +333,7 @@ int msh_exec(char *cmd, rt_size_t length)
     {
         return cmd_ret;
     }
-#ifdef RT_USING_MODULE
+#if defined(RT_USING_MODULE) && defined(RT_USING_DFS)
     if (msh_exec_module(cmd, length) == 0)
     {
         return 0;
diff --git a/components/libc/compilers/newlib/syscalls.c b/components/libc/compilers/newlib/syscalls.c
index 514dda147fc621cc285155ace3bd4d829d8d0902..822182ba9346a29e5e17f949d924151fae24eca8 100644
--- a/components/libc/compilers/newlib/syscalls.c
+++ b/components/libc/compilers/newlib/syscalls.c
@@ -7,7 +7,7 @@
 #include <dfs_posix.h>
 #endif
 
-#ifdef RT_USING_PTHREADS 
+#ifdef RT_USING_PTHREADS
 #include <pthread.h>
 #endif
 
@@ -126,7 +126,7 @@ _open_r(struct _reent *ptr, const char *file, int flags, int mode)
 #endif
 }
 
-_ssize_t 
+_ssize_t
 _read_r(struct _reent *ptr, int fd, void *buf, size_t nbytes)
 {
 #ifndef RT_USING_DFS
@@ -372,7 +372,7 @@ void *_calloc_r (struct _reent *ptr, size_t size, size_t len)
     return result;
 }
 
-void 
+void
 _free_r (struct _reent *ptr, void *addr)
 {
     rt_free (addr);
@@ -387,43 +387,20 @@ _exit (int status)
     module = rt_module_self();
     if (module != RT_NULL)
     {
-        struct rt_list_node *list;
-        struct rt_object *object;
-
-        rt_enter_critical();
-        
-        /* delete all threads in the module */
-        list = &module->module_object[RT_Object_Class_Thread].object_list;
-        while (list->next != list)
-        {
-            object = rt_list_entry(list->next, struct rt_object, list);
-            if (rt_object_is_systemobject(object) == RT_TRUE)
-            {
-                /* detach static object */
-                rt_thread_detach((rt_thread_t)object);
-            }
-            else
-            {
-                /* delete dynamic object */
-                rt_thread_delete((rt_thread_t)object);
-            }
-        }
-        /* delete main thread */
-        rt_thread_delete(module->module_thread);
-        rt_exit_critical();
+        rt_thread_suspend(rt_thread_self());
 
         /* re-schedule */
         rt_schedule();
     }
 #endif
-    
+
     rt_kprintf("thread:%s exit with %d\n", rt_thread_self()->name, status);
     RT_ASSERT(0);
 
     while (1);
 }
 
-void 
+void
 _system(const char *s)
 {
     /* not support this call */
diff --git a/src/idle.c b/src/idle.c
index ecd894b8e2bb0de8ff746292bcc0864fca524436..88415e4e2152886cabb85cb7aed160c080b5526f 100644
--- a/src/idle.c
+++ b/src/idle.c
@@ -175,24 +175,6 @@ void rt_thread_idle_excute(void)
         /* delete thread object */
         rt_object_delete((rt_object_t)thread);
 #endif
-
-#ifdef RT_USING_MODULE
-        if (module != RT_NULL)
-        {
-            extern rt_err_t rt_module_destroy(rt_module_t module);
-
-            /* if sub thread list and main thread are all empty */
-            if ((module->module_thread == RT_NULL) &&
-                rt_list_isempty(&module->module_object[RT_Object_Class_Thread].object_list))
-            {
-                module->nref --;
-            }
-
-            /* destroy module */
-            if (module->nref == 0)
-                rt_module_destroy(module);
-        }
-#endif
     }
 }
 
diff --git a/src/module.c b/src/module.c
index b48fae9418f1e9d36a71a54fdc2bcd7ed4973b55..ce9931db3c3c6bf95af91cdbb8468f7d7249ad6e 100644
--- a/src/module.c
+++ b/src/module.c
@@ -120,10 +120,6 @@ int rt_system_module_init(void)
     _rt_module_symtab_end   = __section_end("RTMSymTab");
 #endif
 
-#ifdef RT_USING_SLAB
-    /* initialize heap semaphore */
-    rt_sem_init(&mod_sem, "module", 1, RT_IPC_FLAG_FIFO);
-#endif
     return 0;
 }
 INIT_COMPONENT_EXPORT(rt_system_module_init);
@@ -138,7 +134,7 @@ void list_symbol(void)
          index != _rt_module_symtab_end;
          index ++)
     {
-        rt_kprintf("%s\n", index->name);
+        rt_kprintf("%s => 0x%08x\n", index->name, index->addr);
     }
 
     return ;
@@ -295,80 +291,6 @@ static int rt_module_arm_relocate(struct rt_module *module,
     return 0;
 }
 
-void rt_module_init_object_container(struct rt_module *module)
-{
-    RT_ASSERT(module != RT_NULL);
-
-    /* clear all of object information */
-    rt_memset(&module->module_object[0], 0x0, sizeof(module->module_object));
-
-    /* initialize object container - thread */
-    rt_list_init(&(module->module_object[RT_Object_Class_Thread].object_list));
-    module->module_object[RT_Object_Class_Thread].object_size = sizeof(struct rt_thread);
-    module->module_object[RT_Object_Class_Thread].type = RT_Object_Class_Thread;
-
-#ifdef RT_USING_SEMAPHORE
-    /* initialize object container - semaphore */
-    rt_list_init(&(module->module_object[RT_Object_Class_Semaphore].object_list));
-    module->module_object[RT_Object_Class_Semaphore].object_size = sizeof(struct rt_semaphore);
-    module->module_object[RT_Object_Class_Semaphore].type = RT_Object_Class_Semaphore;
-#endif
-
-#ifdef RT_USING_MUTEX
-    /* initialize object container - mutex */
-    rt_list_init(&(module->module_object[RT_Object_Class_Mutex].object_list));
-    module->module_object[RT_Object_Class_Mutex].object_size = sizeof(struct rt_mutex);
-    module->module_object[RT_Object_Class_Mutex].type = RT_Object_Class_Mutex;
-#endif
-
-#ifdef RT_USING_EVENT
-    /* initialize object container - event */
-    rt_list_init(&(module->module_object[RT_Object_Class_Event].object_list));
-    module->module_object[RT_Object_Class_Event].object_size = sizeof(struct rt_event);
-    module->module_object[RT_Object_Class_Event].type = RT_Object_Class_Event;
-#endif
-
-#ifdef RT_USING_MAILBOX
-    /* initialize object container - mailbox */
-    rt_list_init(&(module->module_object[RT_Object_Class_MailBox].object_list));
-    module->module_object[RT_Object_Class_MailBox].object_size = sizeof(struct rt_mailbox);
-    module->module_object[RT_Object_Class_MailBox].type = RT_Object_Class_MailBox;
-#endif
-
-#ifdef RT_USING_MESSAGEQUEUE
-    /* initialize object container - message queue */
-    rt_list_init(&(module->module_object[RT_Object_Class_MessageQueue].object_list));
-    module->module_object[RT_Object_Class_MessageQueue].object_size = sizeof(struct rt_messagequeue);
-    module->module_object[RT_Object_Class_MessageQueue].type = RT_Object_Class_MessageQueue;
-#endif
-
-#ifdef RT_USING_MEMHEAP
-    /* initialize object container - memory heap */
-    rt_list_init(&(module->module_object[RT_Object_Class_MemHeap].object_list));
-    module->module_object[RT_Object_Class_MemHeap].object_size = sizeof(struct rt_memheap);
-    module->module_object[RT_Object_Class_MemHeap].type = RT_Object_Class_MemHeap;
-#endif
-
-#ifdef RT_USING_MEMPOOL
-    /* initialize object container - memory pool */
-    rt_list_init(&(module->module_object[RT_Object_Class_MemPool].object_list));
-    module->module_object[RT_Object_Class_MemPool].object_size = sizeof(struct rt_mempool);
-    module->module_object[RT_Object_Class_MemPool].type = RT_Object_Class_MemPool;
-#endif
-
-#ifdef RT_USING_DEVICE
-    /* initialize object container - device */
-    rt_list_init(&(module->module_object[RT_Object_Class_Device].object_list));
-    module->module_object[RT_Object_Class_Device].object_size = sizeof(struct rt_device);
-    module->module_object[RT_Object_Class_Device].type = RT_Object_Class_Device;
-#endif
-
-    /* initialize object container - timer */
-    rt_list_init(&(module->module_object[RT_Object_Class_Timer].object_list));
-    module->module_object[RT_Object_Class_Timer].object_size = sizeof(struct rt_timer);
-    module->module_object[RT_Object_Class_Timer].type = RT_Object_Class_Timer;
-}
-
 #ifdef RT_USING_HOOK
 static void (*rt_module_load_hook)(rt_module_t module);
 static void (*rt_module_unload_hook)(rt_module_t module);
@@ -1016,9 +938,6 @@ rt_module_t rt_module_do_main(const char *name,
     if (module == RT_NULL)
         return RT_NULL;
 
-    /* init module object container */
-    rt_module_init_object_container(module);
-
     if (line_size && cmd_line)
     {
         /* set module argument */
@@ -1042,16 +961,6 @@ rt_module_t rt_module_do_main(const char *name,
 
     if (elf_module->e_entry != 0)
     {
-#ifdef RT_USING_SLAB
-        /* init module memory allocator */
-        module->mem_list = RT_NULL;
-
-        /* create page array */
-        module->page_array =
-            (void *)rt_malloc(PAGE_COUNT_MAX * sizeof(struct rt_page_info));
-        module->page_cnt = 0;
-#endif
-
         /* create module thread */
         module->module_thread = rt_thread_create(name,
                                                  module_main_entry, module,
@@ -1291,8 +1200,6 @@ FINSH_FUNCTION_EXPORT_ALIAS(rt_module_open, exec, exec module from a file);
 rt_err_t rt_module_destroy(rt_module_t module)
 {
     int i;
-    struct rt_object *object;
-    struct rt_list_node *list;
 
     RT_DEBUG_NOT_IN_INTERRUPT;
 
@@ -1306,147 +1213,6 @@ rt_err_t rt_module_destroy(rt_module_t module)
     /* module has entry point */
     if (!(module->parent.flag & RT_MODULE_FLAG_WITHOUTENTRY))
     {
-#ifdef RT_USING_SEMAPHORE
-        /* delete semaphores */
-        list = &module->module_object[RT_Object_Class_Semaphore].object_list;
-        while (list->next != list)
-        {
-            object = rt_list_entry(list->next, struct rt_object, list);
-            if (rt_object_is_systemobject(object) == RT_TRUE)
-            {
-                /* detach static object */
-                rt_sem_detach((rt_sem_t)object);
-            }
-            else
-            {
-                /* delete dynamic object */
-                rt_sem_delete((rt_sem_t)object);
-            }
-        }
-#endif
-
-#ifdef RT_USING_MUTEX
-        /* delete mutexs*/
-        list = &module->module_object[RT_Object_Class_Mutex].object_list;
-        while (list->next != list)
-        {
-            object = rt_list_entry(list->next, struct rt_object, list);
-            if (rt_object_is_systemobject(object) == RT_TRUE)
-            {
-                /* detach static object */
-                rt_mutex_detach((rt_mutex_t)object);
-            }
-            else
-            {
-                /* delete dynamic object */
-                rt_mutex_delete((rt_mutex_t)object);
-            }
-        }
-#endif
-
-#ifdef RT_USING_EVENT
-        /* delete mailboxs */
-        list = &module->module_object[RT_Object_Class_Event].object_list;
-        while (list->next != list)
-        {
-            object = rt_list_entry(list->next, struct rt_object, list);
-            if (rt_object_is_systemobject(object) == RT_TRUE)
-            {
-                /* detach static object */
-                rt_event_detach((rt_event_t)object);
-            }
-            else
-            {
-                /* delete dynamic object */
-                rt_event_delete((rt_event_t)object);
-            }
-        }
-#endif
-
-#ifdef RT_USING_MAILBOX
-        /* delete mailboxs */
-        list = &module->module_object[RT_Object_Class_MailBox].object_list;
-        while (list->next != list)
-        {
-            object = rt_list_entry(list->next, struct rt_object, list);
-            if (rt_object_is_systemobject(object) == RT_TRUE)
-            {
-                /* detach static object */
-                rt_mb_detach((rt_mailbox_t)object);
-            }
-            else
-            {
-                /* delete dynamic object */
-                rt_mb_delete((rt_mailbox_t)object);
-            }
-        }
-#endif
-
-#ifdef RT_USING_MESSAGEQUEUE
-        /* delete msgqueues */
-        list = &module->module_object[RT_Object_Class_MessageQueue].object_list;
-        while (list->next != list)
-        {
-            object = rt_list_entry(list->next, struct rt_object, list);
-            if (rt_object_is_systemobject(object) == RT_TRUE)
-            {
-                /* detach static object */
-                rt_mq_detach((rt_mq_t)object);
-            }
-            else
-            {
-                /* delete dynamic object */
-                rt_mq_delete((rt_mq_t)object);
-            }
-        }
-#endif
-
-#ifdef RT_USING_MEMPOOL
-        /* delete mempools */
-        list = &module->module_object[RT_Object_Class_MemPool].object_list;
-        while (list->next != list)
-        {
-            object = rt_list_entry(list->next, struct rt_object, list);
-            if (rt_object_is_systemobject(object) == RT_TRUE)
-            {
-                /* detach static object */
-                rt_mp_detach((rt_mp_t)object);
-            }
-            else
-            {
-                /* delete dynamic object */
-                rt_mp_delete((rt_mp_t)object);
-            }
-        }
-#endif
-
-#ifdef RT_USING_DEVICE
-        /* delete devices */
-        list = &module->module_object[RT_Object_Class_Device].object_list;
-        while (list->next != list)
-        {
-            object = rt_list_entry(list->next, struct rt_object, list);
-            rt_device_unregister((rt_device_t)object);
-        }
-#endif
-
-        /* delete timers */
-        list = &module->module_object[RT_Object_Class_Timer].object_list;
-        while (list->next != list)
-        {
-            object = rt_list_entry(list->next, struct rt_object, list);
-            if (rt_object_is_systemobject(object) == RT_TRUE)
-            {
-                /* detach static object */
-                rt_timer_detach((rt_timer_t)object);
-            }
-            else
-            {
-                /* delete dynamic object */
-                rt_timer_delete((rt_timer_t)object);
-            }
-        }
-
         /* delete command line */
         if (module->module_cmd_line != RT_NULL)
         {
@@ -1454,20 +1220,6 @@ rt_err_t rt_module_destroy(rt_module_t module)
         }
     }
 
-#ifdef RT_USING_SLAB
-    if (module->page_cnt > 0)
-    {
-        struct rt_page_info *page = (struct rt_page_info *)module->page_array;
-
-        rt_kprintf("Module: warning - memory still hasn't been free finished\n");
-
-        while (module->page_cnt != 0)
-        {
-            rt_module_free_page(module, page[0].page_ptr, page[0].npage);
-        }
-    }
-#endif
-
     /* release module space memory */
     rt_free(module->module_space);
 
@@ -1479,11 +1231,6 @@ rt_err_t rt_module_destroy(rt_module_t module)
     if (module->symtab != RT_NULL)
         rt_free(module->symtab);
 
-#ifdef RT_USING_SLAB
-    if (module->page_array != RT_NULL)
-        rt_free(module->page_array);
-#endif
-
     /* delete module object */
     rt_object_delete((rt_object_t)module);
 
@@ -1499,10 +1246,6 @@ rt_err_t rt_module_destroy(rt_module_t module)
  */
 rt_err_t rt_module_unload(rt_module_t module)
 {
-    struct rt_object *object;
-    struct rt_list_node *list;
-	rt_bool_t mdelete = RT_TRUE;
-
     RT_DEBUG_NOT_IN_INTERRUPT;
 
     /* check parameter */
@@ -1510,34 +1253,7 @@ rt_err_t rt_module_unload(rt_module_t module)
         return -RT_ERROR;
 
     rt_enter_critical();
-    if (!(module->parent.flag & RT_MODULE_FLAG_WITHOUTENTRY))
-    {
-    	/* delete module in main thread destroy */
-		mdelete = RT_FALSE;
-    
-        /* delete all sub-threads */
-        list = &module->module_object[RT_Object_Class_Thread].object_list;
-        while (list->next != list)
-        {
-            object = rt_list_entry(list->next, struct rt_object, list);
-            if (rt_object_is_systemobject(object) == RT_TRUE)
-            {
-                /* detach static object */
-                rt_thread_detach((rt_thread_t)object);
-            }
-            else
-            {
-                /* delete dynamic object */
-                rt_thread_delete((rt_thread_t)object);
-            }
-        }
-
-        /* delete the main thread of module */
-        if (module->module_thread != RT_NULL)
-        {
-            rt_thread_delete(module->module_thread);
-        }
-    }
+    /* invoke module cleanup */
     rt_exit_critical();
 
 #ifdef RT_USING_HOOK
@@ -1547,11 +1263,6 @@ rt_err_t rt_module_unload(rt_module_t module)
     }
 #endif
 
-	if (mdelete == RT_TRUE)
-	{
-		rt_module_destroy(module);
-	}
-
     return RT_EOK;
 }
 
@@ -1598,462 +1309,4 @@ rt_module_t rt_module_find(const char *name)
 }
 RTM_EXPORT(rt_module_find);
 
-#ifdef RT_USING_SLAB
-/*
- * This function will allocate the numbers page with specified size
- * in page memory.
- *
- * @param size the size of memory to be allocated.
- * @note this function is used for RT-Thread Application Module
- */
-static void *rt_module_malloc_page(rt_size_t npages)
-{
-    void *chunk;
-    struct rt_page_info *page;
-    rt_module_t self_module;
-
-    self_module = rt_module_self();
-    RT_ASSERT(self_module != RT_NULL);
-
-    chunk = rt_page_alloc(npages);
-    if (chunk == RT_NULL)
-        return RT_NULL;
-
-    page = (struct rt_page_info *)self_module->page_array;
-    page[self_module->page_cnt].page_ptr = chunk;
-    page[self_module->page_cnt].npage    = npages;
-    self_module->page_cnt ++;
-
-    RT_ASSERT(self_module->page_cnt <= PAGE_COUNT_MAX);
-    RT_DEBUG_LOG(RT_DEBUG_MODULE, ("rt_module_malloc_page 0x%x %d\n",
-                                   chunk, npages));
-
-    return chunk;
-}
-
-/*
- * This function will release the previously allocated memory page
- * by rt_malloc_page.
- *
- * @param page_ptr the page address to be released.
- * @param npages the number of page shall be released.
- *
- * @note this function is used for RT-Thread Application Module
- */
-static void rt_module_free_page(rt_module_t module,
-                                void       *page_ptr,
-                                rt_size_t   npages)
-{
-    int i, index;
-    struct rt_page_info *page;
-    rt_module_t self_module;
-
-    self_module = rt_module_self();
-    RT_ASSERT(self_module != RT_NULL);
-
-    RT_DEBUG_LOG(RT_DEBUG_MODULE, ("rt_module_free_page 0x%x %d\n",
-                                   page_ptr, npages));
-    rt_page_free(page_ptr, npages);
-
-    page = (struct rt_page_info *)module->page_array;
-
-    for (i = 0; i < module->page_cnt; i ++)
-    {
-        if (page[i].page_ptr == page_ptr)
-        {
-            if (page[i].npage == npages + 1)
-            {
-                page[i].page_ptr +=
-                    npages * RT_MM_PAGE_SIZE / sizeof(rt_uint32_t);
-                page[i].npage    -= npages;
-            }
-            else if (page[i].npage == npages)
-            {
-                for (index = i; index < module->page_cnt - 1; index ++)
-                {
-                    page[index].page_ptr = page[index + 1].page_ptr;
-                    page[index].npage    = page[index + 1].npage;
-                }
-                page[module->page_cnt - 1].page_ptr = RT_NULL;
-                page[module->page_cnt - 1].npage    = 0;
-
-                module->page_cnt --;
-            }
-            else
-                RT_ASSERT(RT_FALSE);
-            self_module->page_cnt --;
-
-            return;
-        }
-    }
-
-    /* should not get here */
-    RT_ASSERT(RT_FALSE);
-}
-
-/**
- * rt_module_malloc - allocate memory block in free list
- */
-void *rt_module_malloc(rt_size_t size)
-{
-    struct rt_mem_head *b, *n, *up;
-    struct rt_mem_head **prev;
-    rt_uint32_t npage;
-    rt_size_t nunits;
-    rt_module_t self_module;
-
-    self_module = rt_module_self();
-    RT_ASSERT(self_module != RT_NULL);
-
-    RT_DEBUG_NOT_IN_INTERRUPT;
-
-    nunits = (size + sizeof(struct rt_mem_head) - 1) /
-             sizeof(struct rt_mem_head)
-             + 1;
-
-    RT_ASSERT(size != 0);
-    RT_ASSERT(nunits != 0);
-
-    rt_sem_take(&mod_sem, RT_WAITING_FOREVER);
-
-    for (prev = (struct rt_mem_head **)&self_module->mem_list;
-         (b = *prev) != RT_NULL;
-         prev = &(b->next))
-    {
-        if (b->size > nunits)
-        {
-            /* split memory */
-            n       = b + nunits;
-            n->next = b->next;
-            n->size = b->size - nunits;
-            b->size = nunits;
-            *prev   = n;
-
-            RT_DEBUG_LOG(RT_DEBUG_MODULE, ("rt_module_malloc 0x%x, %d\n",
-                                           b + 1, size));
-            rt_sem_release(&mod_sem);
-
-            return (void *)(b + 1);
-        }
-
-        if (b->size == nunits)
-        {
-            /* this node fit, remove this node */
-            *prev = b->next;
-
-            RT_DEBUG_LOG(RT_DEBUG_MODULE, ("rt_module_malloc 0x%x, %d\n",
-                                           b + 1, size));
-
-            rt_sem_release(&mod_sem);
-
-            return (void *)(b + 1);
-        }
-    }
-
-    /* allocate pages from system heap */
-    npage = (size + sizeof(struct rt_mem_head) + RT_MM_PAGE_SIZE - 1) /
-            RT_MM_PAGE_SIZE;
-    if ((up = (struct rt_mem_head *)rt_module_malloc_page(npage)) == RT_NULL)
-        return RT_NULL;
-
-    up->size = npage * RT_MM_PAGE_SIZE / sizeof(struct rt_mem_head);
-
-    for (prev = (struct rt_mem_head **)&self_module->mem_list;
-         (b = *prev) != RT_NULL;
-         prev = &(b->next))
-    {
-        if (b > up + up->size)
-            break;
-    }
-
-    up->next = b;
-    *prev    = up;
-
-    rt_sem_release(&mod_sem);
-
-    return rt_module_malloc(size);
-}
-
-/**
- * rt_module_free - free memory block in free list
- */
-void rt_module_free(rt_module_t module, void *addr)
-{
-    struct rt_mem_head *b, *n, *r;
-    struct rt_mem_head **prev;
-
-    RT_DEBUG_NOT_IN_INTERRUPT;
-
-    RT_ASSERT(addr);
-    RT_ASSERT((((rt_uint32_t)addr) & (sizeof(struct rt_mem_head) - 1)) == 0);
-
-    RT_DEBUG_LOG(RT_DEBUG_MODULE, ("rt_module_free 0x%x\n", addr));
-
-    rt_sem_take(&mod_sem, RT_WAITING_FOREVER);
-
-    n = (struct rt_mem_head *)addr - 1;
-    prev = (struct rt_mem_head **)&module->mem_list;
-
-    while ((b = *prev) != RT_NULL)
-    {
-        RT_ASSERT(b->size > 0);
-        RT_ASSERT(b > n || b + b->size <= n);
-
-        if (b + b->size == n && ((rt_uint32_t)n % RT_MM_PAGE_SIZE != 0))
-        {
-            if (b + (b->size + n->size) == b->next)
-            {
-                b->size += b->next->size + n->size;
-                b->next = b->next->next;
-            }
-            else
-                b->size += n->size;
-
-            if ((rt_uint32_t)b % RT_MM_PAGE_SIZE == 0)
-            {
-                int npage =
-                    b->size * sizeof(struct rt_page_info) / RT_MM_PAGE_SIZE;
-                if (npage > 0)
-                {
-                    if ((b->size * sizeof(struct rt_page_info) % RT_MM_PAGE_SIZE) != 0)
-                    {
-                        rt_size_t nunits = npage *
-                                           RT_MM_PAGE_SIZE /
-                                           sizeof(struct rt_mem_head);
-                        /* split memory */
-                        r       = b + nunits;
-                        r->next = b->next;
-                        r->size = b->size - nunits;
-                        *prev   = r;
-                    }
-                    else
-                    {
-                        *prev = b->next;
-                    }
-
-                    rt_module_free_page(module, b, npage);
-                }
-            }
-
-            /* unlock */
-            rt_sem_release(&mod_sem);
-
-            return;
-        }
-
-        if (b == n + n->size)
-        {
-            n->size = b->size + n->size;
-            n->next = b->next;
-
-            if ((rt_uint32_t)n % RT_MM_PAGE_SIZE == 0)
-            {
-                int npage =
-                    n->size * sizeof(struct rt_page_info) / RT_MM_PAGE_SIZE;
-                if (npage > 0)
-                {
-                    if ((n->size * sizeof(struct rt_page_info) % RT_MM_PAGE_SIZE) != 0)
-                    {
-                        rt_size_t nunits = npage *
-                                           RT_MM_PAGE_SIZE /
-                                           sizeof(struct rt_mem_head);
-                        /* split memory */
-                        r       = n + nunits;
-                        r->next = n->next;
-                        r->size = n->size - nunits;
-                        *prev   = r;
-                    }
-                    else
-                        *prev = n->next;
-
-                    rt_module_free_page(module, n, npage);
-                }
-            }
-            else
-            {
-                *prev = n;
-            }
-
-            /* unlock */
-            rt_sem_release(&mod_sem);
-
-            return;
-        }
-        if (b > n + n->size)
-            break;
-
-        prev = &(b->next);
-    }
-
-    if ((rt_uint32_t)n % RT_MM_PAGE_SIZE == 0)
-    {
-        int npage = n->size * sizeof(struct rt_page_info) / RT_MM_PAGE_SIZE;
-        if (npage > 0)
-        {
-            rt_module_free_page(module, n, npage);
-            if (n->size % RT_MM_PAGE_SIZE != 0)
-            {
-                rt_size_t nunits =
-                    npage * RT_MM_PAGE_SIZE / sizeof(struct rt_mem_head);
-                /* split memory */
-                r       = n + nunits;
-                r->next = b;
-                r->size = n->size - nunits;
-                *prev   = r;
-            }
-            else
-            {
-                *prev = b;
-            }
-        }
-    }
-    else
-    {
-        n->next = b;
-        *prev   = n;
-    }
-
-    /* unlock */
-    rt_sem_release(&mod_sem);
-}
-
-/**
- * rt_module_realloc - realloc memory block in free list
- */
-void *rt_module_realloc(void *ptr, rt_size_t size)
-{
-    struct rt_mem_head *b, *p, *prev, *tmpp;
-    rt_size_t nunits;
-    rt_module_t self_module;
-
-    self_module = rt_module_self();
-    RT_ASSERT(self_module != RT_NULL);
-
-    RT_DEBUG_NOT_IN_INTERRUPT;
-
-    if (!ptr)
-        return rt_module_malloc(size);
-    if (size == 0)
-    {
-        rt_module_free(self_module, ptr);
-
-        return RT_NULL;
-    }
-
-    nunits = (size + sizeof(struct rt_mem_head) - 1) /
-             sizeof(struct rt_mem_head)
-             + 1;
-    b = (struct rt_mem_head *)ptr - 1;
-
-    if (nunits <= b->size)
-    {
-        /* new size is smaller or equal then before */
-        if (nunits == b->size)
-            return ptr;
-        else
-        {
-            p       = b + nunits;
-            p->size = b->size - nunits;
-            b->size = nunits;
-            rt_module_free(self_module, (void *)(p + 1));
-
-            return (void *)(b + 1);
-        }
-    }
-    else
-    {
-        /* more space then required */
-        prev = (struct rt_mem_head *)self_module->mem_list;
-        for (p = prev->next;
-             p != (b->size + b) && p != RT_NULL;
-             prev = p, p = p->next)
-        {
-            break;
-        }
-
-        /* available block after ap in freelist */
-        if (p != RT_NULL &&
-            (p->size >= (nunits - (b->size))) &&
-            p == (b + b->size))
-        {
-            /* perfect match */
-            if (p->size == (nunits - (b->size)))
-            {
-                b->size    = nunits;
-                prev->next = p->next;
-            }
-            else  /* more space then required, split block */
-            {
-                /* pointer to old header */
-                tmpp = p;
-                p    = b + nunits;
-
-                /* restoring old pointer */
-                p->next = tmpp->next;
-
-                /* new size for p */
-                p->size    = tmpp->size + b->size - nunits;
-                b->size    = nunits;
-                prev->next = p;
-            }
-            self_module->mem_list = (void *)prev;
-
-            return (void *)(b + 1);
-        }
-        else /* allocate new memory and copy old data */
-        {
-            if ((p = rt_module_malloc(size)) == RT_NULL)
-                return RT_NULL;
-            rt_memmove(p, (b + 1), ((b->size) * sizeof(struct rt_mem_head)));
-            rt_module_free(self_module, (void *)(b + 1));
-
-            return (void *)(p);
-        }
-    }
-}
-
-#ifdef RT_USING_FINSH
-#include <finsh.h>
-
-void list_memlist(const char *name)
-{
-    rt_module_t module;
-    struct rt_mem_head **prev;
-    struct rt_mem_head *b;
-
-    module = rt_module_find(name);
-    if (module == RT_NULL)
-        return;
-
-    for (prev = (struct rt_mem_head **)&module->mem_list;
-         (b = *prev) != RT_NULL;
-         prev = &(b->next))
-    {
-        rt_kprintf("0x%x--%d\n", b, b->size * sizeof(struct rt_mem_head));
-    }
-}
-FINSH_FUNCTION_EXPORT(list_memlist, list module free memory information)
-
-void list_mempage(const char *name)
-{
-    rt_module_t module;
-    struct rt_page_info *page;
-    int i;
-
-    module = rt_module_find(name);
-    if (module == RT_NULL)
-        return;
-
-    page = (struct rt_page_info *)module->page_array;
-
-    for (i = 0; i < module->page_cnt; i ++)
-    {
-        rt_kprintf("0x%x--%d\n", page[i].page_ptr, page[i].npage);
-    }
-}
-FINSH_FUNCTION_EXPORT(list_mempage, list module using memory page information)
-#endif /* RT_USING_FINSH */
-
-#endif /* RT_USING_SLAB */
-
 #endif
diff --git a/src/object.c b/src/object.c
index 14d5f1cf3b41286264a5ab3ce78ed747de0c2668..b2c604664cb395eff53e3b5994e67dad408da402 100644
--- a/src/object.c
+++ b/src/object.c
@@ -252,15 +252,9 @@ void rt_object_init(struct rt_object         *object,
     register rt_base_t temp;
     struct rt_object_information *information;
 
-#ifdef RT_USING_MODULE
-    /* get module object information */
-    information = (rt_module_self() != RT_NULL) ?
-                  &rt_module_self()->module_object[type] : rt_object_get_information(type);
-#else
     /* get object information */
     information = rt_object_get_information(type);
     RT_ASSERT(information != RT_NULL);
-#endif
 
     /* initialize object's parameters */
 
@@ -324,18 +318,9 @@ rt_object_t rt_object_allocate(enum rt_object_class_type type, const char *name)
 
     RT_DEBUG_NOT_IN_INTERRUPT;
 
-#ifdef RT_USING_MODULE
-    /*
-     * get module object information,
-     * module object should be managed by kernel object container
-     */
-    information = (rt_module_self() != RT_NULL && (type != RT_Object_Class_Module)) ?
-                  &rt_module_self()->module_object[type] : rt_object_get_information(type);
-#else
     /* get object information */
     information = rt_object_get_information(type);
     RT_ASSERT(information != RT_NULL);
-#endif
 
     object = (struct rt_object *)RT_KERNEL_MALLOC(information->object_size);
     if (object == RT_NULL)
@@ -458,65 +443,6 @@ rt_object_t rt_object_find(const char *name, rt_uint8_t type)
     /* which is invoke in interrupt status */
     RT_DEBUG_NOT_IN_INTERRUPT;
 
-#ifdef RT_USING_MODULE
-    /* check whether to find a object inside a module. */
-    {
-        const char *name_ptr;
-        int module_name_length;
-
-        name_ptr = name;
-        while ((*name_ptr != '\0') && (*name_ptr != '/'))
-            name_ptr ++;
-
-        if (*name_ptr == '/')
-        {
-            struct rt_module *module = RT_NULL;
-
-            /* get the name length of module */
-            module_name_length = name_ptr - name;
-
-            /* enter critical */
-            rt_enter_critical();
-
-            /* find module */
-            information = rt_object_get_information(RT_Object_Class_Module);
-            RT_ASSERT(information != RT_NULL);
-
-            for (node = information->object_list.next;
-                    node != &(information->object_list);
-                    node  = node->next)
-            {
-                object = rt_list_entry(node, struct rt_object, list);
-                if ((rt_strncmp(object->name, name, module_name_length) == 0) &&
-                        (module_name_length == RT_NAME_MAX || object->name[module_name_length] == '\0'))
-                {
-                    /* get module */
-                    module = (struct rt_module *)object;
-                    break;
-                }
-            }
-            rt_exit_critical();
-
-            /* there is no this module inside the system */
-            if (module == RT_NULL) return RT_NULL;
-
-            /* get the object pool of module */
-            information = &(module->module_object[type]);
-
-            /* get object name */
-            while ((*name_ptr == '/') && (*name_ptr != '\0')) name_ptr ++;
-            if (*name_ptr == '\0')
-            {
-                if (type == RT_Object_Class_Module) return object;
-                return RT_NULL;
-            }
-
-            /* point to the object name */
-            name = name_ptr;
-        }
-    }
-#endif
-
     /* enter critical */
     rt_enter_critical();