diff --git a/airtest/core/android/adb.py b/airtest/core/android/adb.py
index 5bcafa85..09539d4a 100644
--- a/airtest/core/android/adb.py
+++ b/airtest/core/android/adb.py
@@ -38,7 +38,6 @@ def __init__(self, serialno=None, adb_path=None, server_addr=None):
         self._display_info_lock = threading.Lock()
         self._forward_local_using = []
         self.__class__._instances.append(self)
-        # reg_cleanup(self._cleanup_forwards)
 
     @staticmethod
     def builtin_adb_path():
@@ -85,6 +84,16 @@ def start_server(self):
         """
         return self.cmd("start-server", device=False)
 
+    def kill_server(self):
+        """
+        Perform `adb kill-server` command to kill the adb server
+
+        Returns:
+            None
+
+        """
+        return self.cmd("kill-server", device=False)
+
     def version(self):
         """
         Perform `adb version` command and return the command output
@@ -690,8 +699,10 @@ def _cleanup_forwards(self):
         Returns:
             None
         """
-        for local in self._forward_local_using[:]:
-            self.remove_forward(local)
+        for local in self._forward_local_using:
+            self.start_cmd(["forward", "--remove", local])
+
+        self._forward_local_using = []
 
     @property
     def line_breaker(self):
@@ -703,16 +714,10 @@ def line_breaker(self):
 
         """
         if not self._line_breaker:
-            if platform.system() == "Windows":
-                if self.sdk_version >= SDK_VERISON_NEW:
-                    line_breaker = b"\r\n"
-                else:
-                    line_breaker = b"\r\r\n"
+            if self.sdk_version >= SDK_VERISON_NEW:
+                line_breaker = os.linesep
             else:
-                if self.sdk_version >= SDK_VERISON_NEW:
-                    line_breaker = b"\n"
-                else:
-                    line_breaker = b"\r\n"
+                line_breaker = b'\r' + os.linesep
             self._line_breaker = line_breaker
         return self._line_breaker
 
@@ -1235,4 +1240,4 @@ def cleanup_adb_forward():
         adb._cleanup_forwards()
 
 
-reg_cleanup(cleanup_adb_forward)
\ No newline at end of file
+reg_cleanup(cleanup_adb_forward)
diff --git a/airtest/core/android/javacap.py b/airtest/core/android/javacap.py
index 8f3dd6d5..f51455e4 100644
--- a/airtest/core/android/javacap.py
+++ b/airtest/core/android/javacap.py
@@ -2,7 +2,7 @@
 from airtest.utils.logger import get_logger
 from airtest.utils.safesocket import SafeSocket
 from airtest.utils.nbsp import NonBlockingStreamReader
-from airtest.utils.snippet import reg_cleanup, on_method_ready
+from airtest.utils.snippet import on_method_ready
 from airtest.core.android.yosemite import Yosemite
 import struct
 LOGGING = get_logger(__name__)
@@ -20,7 +20,6 @@ class Javacap(Yosemite):
     def __init__(self, adb):
         super(Javacap, self).__init__(adb)
         self.frame_gen = None
-        reg_cleanup(self.teardown_stream)
 
     @on_method_ready('install_or_upgrade')
     def _setup_stream_server(self):
diff --git a/airtest/core/android/minicap.py b/airtest/core/android/minicap.py
index 4f92d1d9..e5f37779 100644
--- a/airtest/core/android/minicap.py
+++ b/airtest/core/android/minicap.py
@@ -35,7 +35,6 @@ def __init__(self, adb, projection=None):
         self.frame_gen = None
         self.stream_lock = threading.Lock()
         self.quirk_flag = 0
-        reg_cleanup(self.teardown_stream)
 
     @ready_method
     def install_or_upgrade(self):
@@ -260,6 +259,7 @@ def _setup_stream_server(self, lazy=False):
             # minicap server setup error, may be already setup by others
             # subprocess exit immediately
             raise RuntimeError("minicap server quit immediately")
+        reg_cleanup(proc.kill)
         return proc, nbsp, localport
 
     def get_frame_from_stream(self):
diff --git a/airtest/core/android/minitouch.py b/airtest/core/android/minitouch.py
index 8bf69f30..a03d7e93 100644
--- a/airtest/core/android/minitouch.py
+++ b/airtest/core/android/minitouch.py
@@ -145,8 +145,8 @@ def setup_server(self):
             # server setup error, may be already setup by others
             # subprocess exit immediately
             raise RuntimeError("minitouch server quit immediately")
-        reg_cleanup(p.kill)
         self.server_proc = p
+        # reg_cleanup(self.server_proc.kill)
         return p
 
     @on_method_ready('install_and_setup')
@@ -378,7 +378,7 @@ def setup_client_backend(self):
         self.backend_stop_event = threading.Event()
         self.setup_client()
         t = threading.Thread(target=self._backend_worker, name="minitouch")
-        t.daemon = True
+        # t.daemon = True
         t.start()
         self.backend_thread = t
         self.handle = self.backend_queue.put
diff --git a/airtest/core/android/rotation.py b/airtest/core/android/rotation.py
index c102f8d3..2efcf5a4 100644
--- a/airtest/core/android/rotation.py
+++ b/airtest/core/android/rotation.py
@@ -18,6 +18,7 @@ def __init__(self, adb):
         self.ow_proc = None
         self.ow_callback = []
         self._t = None
+        reg_cleanup(self.teardown)
 
     @on_method_ready('start')
     def get_ready(self):
@@ -43,7 +44,11 @@ def _install_and_setup(self):
         if p.poll() is not None:
             raise RuntimeError("orientationWatcher setup error")
         self.ow_proc = p
-        reg_cleanup(self.ow_proc.kill)
+        # reg_cleanup(self.ow_proc.kill)
+
+    def teardown(self):
+        if self.ow_proc:
+            self.ow_proc.kill()
 
     def start(self):
         """
@@ -60,6 +65,8 @@ def _refresh_by_ow():
             if line == b"":
                 if LOGGING is not None:  # may be None atexit
                     LOGGING.error("orientationWatcher has ended")
+                else:
+                    print("orientationWatcher has ended")
                 return None
 
             ori = int(line) / 90
@@ -81,7 +88,7 @@ def _run():
                         traceback.print_exc()
 
         self._t = threading.Thread(target=_run, name="rotationwatcher")
-        self._t.daemon = True
+        # self._t.daemon = True
         self._t.start()
 
     def reg_callback(self, ow_callback):
diff --git a/airtest/core/ios/minicap.py b/airtest/core/ios/minicap.py
index 4cce5742..d202b12b 100644
--- a/airtest/core/ios/minicap.py
+++ b/airtest/core/ios/minicap.py
@@ -7,7 +7,6 @@
 from airtest.utils.logger import get_logger
 from airtest.utils.nbsp import NonBlockingStreamReader
 from airtest.utils.safesocket import SafeSocket
-from airtest.utils.snippet import reg_cleanup
 
 LOGGING = get_logger(__name__)
 
@@ -28,9 +27,7 @@ def __init__(self, udid=None, port=12345):
 
     def setup(self):
         cmd = [self.executable, "--udid", self.udid, "--port", str(self.port), "--resolution", self.resolution]
-        print(cmd)
         proc = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.STDOUT, stdin=subprocess.PIPE)
-        reg_cleanup(proc.kill)
         nbsp = NonBlockingStreamReader(proc.stdout, print_output=True, name="minicap_sever")
         while True:
             line = nbsp.readline(timeout=10.0)
diff --git a/airtest/core/win/screen.py b/airtest/core/win/screen.py
index ee605b82..0c6b11e2 100644
--- a/airtest/core/win/screen.py
+++ b/airtest/core/win/screen.py
@@ -3,7 +3,7 @@
 import win32api
 import win32ui
 import win32con
-from airtest.aircv.utils import Image, pil_2_cv2
+from aircv.utils import Image, pil_2_cv2
 
 
 SM_XVIRTUALSCREEN = 76
diff --git a/airtest/utils/nbsp.py b/airtest/utils/nbsp.py
index 1c56bee1..0edc135b 100644
--- a/airtest/utils/nbsp.py
+++ b/airtest/utils/nbsp.py
@@ -40,7 +40,7 @@ def _populateQueue(stream, queue, kill_event):
                 elif raise_EOF:
                     raise UnexpectedEndOfStream
                 else:
-                    LOGGING.debug("EndOfStream")
+                    print("EndOfStream: %s" % self.name)
                     break
 
         self._kill_event = Event()
diff --git a/airtest/utils/snippet.py b/airtest/utils/snippet.py
index fe99b43d..0260900d 100644
--- a/airtest/utils/snippet.py
+++ b/airtest/utils/snippet.py
@@ -2,7 +2,7 @@
 import atexit
 import sys
 from functools import wraps
-from .compat import str_class
+from .compat import str_class, queue
 
 
 def split_cmd(cmds):
@@ -38,6 +38,10 @@ def get_std_encoding(stream):
     return getattr(stream, "encoding", None) or sys.getfilesystemencoding()
 
 
+
+CLEANUP_CALLS = queue.Queue()
+
+
 def reg_cleanup(func, *args, **kwargs):
     """
     Clean the register for given function
@@ -51,7 +55,37 @@ def reg_cleanup(func, *args, **kwargs):
         None
 
     """
-    atexit.register(func, *args, **kwargs)
+    CLEANUP_CALLS.put((func, args, kwargs))
+    # atexit.register(func, *args, **kwargs)
+
+
+def _cleanup():
+    # cleanup together to prevent atexit thread issue
+    while not CLEANUP_CALLS.empty():
+        (func, args, kwargs) = CLEANUP_CALLS.get()
+        func(*args, **kwargs)
+
+
+# atexit.register(_cleanup)
+
+import threading
+
+
+_shutdown = threading._shutdown
+
+
+def exitfunc():
+    print("exiting.......")
+    _cleanup()
+    _shutdown()
+
+
+# use threading._shutdown to exec cleanup when main thread exit
+# atexit exec after all thread exit, which needs to cooperate with daemon thread.
+# daemon thread is evil, which abruptly exit causing unexpected error
+threading._shutdown = exitfunc
+
+
 
 
 def on_method_ready(method_name):