android 开发，USB 一连上手机，logcat 输出就停不下来，怎么回事

开发android用真机进行测试时，USB一连上手机，logcat输出停不下来。
貌似我在手机上做做得任何操作都输出到logcat上了，好像在调试整个android系统了，根本停不下来，怎么破

如下，，，，是其中一段

10-06 23:13:56.055: D/BluetoothAdapter(2674): 1109355176: getState() : mService = null. Returning STATE_OFF
10-06 23:13:56.055: D/DisplayPowerController(2594): setBrightness mPendingRequestLocked.buttonBrightness = 61
10-06 23:13:56.075: D/RampAnimator(2594): animateTo reallyTarget is 1012rate is 25mode is 0
10-06 23:13:56.080: D/DisplayPowerController(2594): setBrightness mPendingRequestLocked.buttonBrightness = 61
10-06 23:13:56.080: D/PowerManagerService(2594): set home button brightness by screen_brightness = 112
10-06 23:13:56.270: V/AudioPolicyManager(2142): getDeviceForStrategy() from cache strategy 1, device 1
10-06 23:13:56.270: D/chenfang_volume(2594): getStreamVolume = 150
10-06 23:13:56.275: D/PowerManagerService(2594): set home button brightness by screen_brightness = 111
10-06 23:13:56.275: D/DisplayPowerController(2594): requestPowerState: screenState=2, useProximitySensor=false, screenBrightness=102, screenAutoBrightnessAdjustment=0.0, useAutoBrightness=true, blockScreenOn=false, buttonBrightness=60, adjustByUserInAutoBrightness=false, isTurnOnAction=true, waitForNegativeProximity=false
10-06 23:13:56.280: D/RampAnimator(2594): animateTo reallyTarget is 1012rate is 25mode is 0
10-06 23:13:56.280: D/DisplayPowerController(2594): setBrightness mPendingRequestLocked.buttonBrightness = 60
10-06 23:13:56.285: D/BluetoothAdapter(2674): 1109355176: getState() : mService = null. Returning STATE_OFF
10-06 23:13:56.290: D/RampAnimator(2594): animateTo reallyTarget is 1012rate is 25mode is 0
10-06 23:13:56.290: D/DisplayPowerController(2594): setBrightness mPendingRequestLocked.buttonBrightness = 60
10-06 23:13:56.290: D/PowerManagerService(2594): set home button brightness by screen_brightness = 111
10-06 23:13:56.500: V/AudioPolicyManager(2142): getDeviceForStrategy() from cache strategy 1, device 1