【AndroidFramework】【EMMC拷机】混合拷机时盒子待机

【AndroidFramework】【EMMC拷机】混合拷机时盒子待机

问题结论

暂时确定为误按键，不是故障。问题关闭。后续完全保证无按键（物理隔离）情况下如果出现待机，请反馈。

问题描述

【EMMC拷机】混合拷机时盒子待机---新版本引入
EMMC：东芝THGBMFG6C1LBAIL 容量为8GB
【故障描述】
1,拷机10台,全部杀了遥控器,拷机播放13H后发现一台出现问题
2,混合拷机时盒子待机

分析详细

• grep确认事件现场
• 确认日志产生机制
• 确认盒子待机按钮
• 确认自动待机接口
• 确认测试部“杀遥控器”方法

---

• grep确认事件现场
  拿到日志有53份，每份102400k，先放在服务器上，grep一下，结果如下：

wanghongzhu@ubuntu:~/temp/182.16.90.24_2019-06-17-17-17-58$ grep 'sleep' * -nir
Log_2019-06-17-17-17-58_53.log:467677:2019-06-17 21:00:29.344   I/PowerManagerService( 3246): Going to sleep due to power button (uid 1000)...
Log_2019-06-17-17-17-58_53.log:467683:2019-06-17 21:00:29.344   I/PowerManagerService( 3246): Sleeping (uid 1000)...
Log_2019-06-17-17-17-58_53.log:481099:2019-06-17 21:00:32.464   I/TV_Client.TagTv( 4374):  [4585][playermgr.cpp (L7160)][StopallTVplay]:---[0]---iPlayerID[0];joinchannel is NOT running!exit Sleep!
wanghongzhu@ubuntu:~/temp/182.16.90.24_2019-06-17-17-17-58$ grep 'screen off' * -nir
Log_2019-06-17-17-17-58_53.log:467687:2019-06-17 21:00:29.344   I/DisplayPowerController( 3246): Blocking screen off
Log_2019-06-17-17-17-58_53.log:467689:2019-06-17 21:00:29.344   I/DisplayPowerController( 3246): Unblocked screen off after 1 ms
Log_2019-06-17-17-17-58_53.log:468063:2019-06-17 21:00:29.547   D/PowerManagerService-JNI( 3246): Excessive delay in setInteractive(false) while turning screen off

结果显示，待机只发生在最后一份日志，并且显示为power button，结果基本明晰。接下来，
1.确认框架代码，什么情况下会出现该打印（遥控器按到了？其他未知原因调用到了？）
2.是不是碰到盒子上‘待机按钮’引起的
3.是不是什么apk调用了自动待机的接口？

• 确认日志产生机制
  代码路径/frameworks/base/services/core/java/com/android/server/power/PowerManagerService.java

/frameworks/base/services/core/java/com/android/server/power$ cat PowerManagerService.java |grep -nir 'Going to sleep due to'
PowerManagerService.java:1407:                    Slog.i(TAG, "Going to sleep due to device administration policy "
PowerManagerService.java:1411:                    Slog.i(TAG, "Going to sleep due to screen timeout (uid " + uid +")...");
PowerManagerService.java:1414:                    Slog.i(TAG, "Going to sleep due to lid switch (uid " + uid +")...");
PowerManagerService.java:1417:                    Slog.i(TAG, "Going to sleep due to power button (uid " + uid +")...");
PowerManagerService.java:1420:                    Slog.i(TAG, "Going to sleep due to sleep button (uid " + uid +")...");
PowerManagerService.java:1423:                    Slog.i(TAG, "Going to sleep due to HDMI standby (uid " + uid +")...");

跳转到打印处,调用的方法，梳理逻辑。

// This method is called goToSleep for historical reasons but we actually start
    // dozing before really going to sleep.
    @SuppressWarnings("deprecation")
    private boolean goToSleepNoUpdateLocked(long eventTime, int reason, int flags, int uid) {
        if (DEBUG_SPEW) {
            Slog.d(TAG, "goToSleepNoUpdateLocked: eventTime=" + eventTime
                    + ", reason=" + reason + ", flags=" + flags + ", uid=" + uid);
        }

        if (eventTime < mLastWakeTime
                || mWakefulness == WAKEFULNESS_ASLEEP
                || mWakefulness == WAKEFULNESS_DOZING
                || !mBootCompleted || !mSystemReady) {
            return false;
        }

        Trace.traceBegin(Trace.TRACE_TAG_POWER, "goToSleep");
        try {
            switch (reason) {
                case PowerManager.GO_TO_SLEEP_REASON_DEVICE_ADMIN:
                    Slog.i(TAG, "Going to sleep due to device administration policy "
                            + "(uid " + uid +")...");
                    break;
                case PowerManager.GO_TO_SLEEP_REASON_TIMEOUT:
                    Slog.i(TAG, "Going to sleep due to screen timeout (uid " + uid +")...");
                    break;
                case PowerManager.GO_TO_SLEEP_REASON_LID_SWITCH:
                    Slog.i(TAG, "Going to sleep due to lid switch (uid " + uid +")...");
                    break;
                case PowerManager.GO_TO_SLEEP_REASON_POWER_BUTTON:
                    Slog.i(TAG, "Going to sleep due to power button (uid " + uid +")...");
                    break;
                case PowerManager.GO_TO_SLEEP_REASON_SLEEP_BUTTON:
                    Slog.i(TAG, "Going to sleep due to sleep button (uid " + uid +")...");
                    break;
                case PowerManager.GO_TO_SLEEP_REASON_HDMI:
                    Slog.i(TAG, "Going to sleep due to HDMI standby (uid " + uid +")...");
                    break;
                case PowerManager.GO_TO_SLEEP_REASON_ACCESSIBILITY:
                    Slog.i(TAG, "Going to sleep by an accessibility service request (uid "
                            + uid +")...");
                    break;
                default:
                    Slog.i(TAG, "Going to sleep by application request (uid " + uid +")...");
                    reason = PowerManager.GO_TO_SLEEP_REASON_APPLICATION;
                    break;
            }

            mLastSleepTime = eventTime;
            mSandmanSummoned = true;
            setWakefulnessLocked(WAKEFULNESS_DOZING, reason);

            // Report the number of wake locks that will be cleared by going to sleep.
            int numWakeLocksCleared = 0;
            final int numWakeLocks = mWakeLocks.size();
            for (int i = 0; i < numWakeLocks; i++) {
                final WakeLock wakeLock = mWakeLocks.get(i);
                switch (wakeLock.mFlags & PowerManager.WAKE_LOCK_LEVEL_MASK) {
                    case PowerManager.FULL_WAKE_LOCK:
                    case PowerManager.SCREEN_BRIGHT_WAKE_LOCK:
                    case PowerManager.SCREEN_DIM_WAKE_LOCK:
                        numWakeLocksCleared += 1;
                        break;
                }
            }
            EventLogTags.writePowerSleepRequested(numWakeLocksCleared);

            // Skip dozing if requested.
            if ((flags & PowerManager.GO_TO_SLEEP_FLAG_NO_DOZE) != 0) {
                reallyGoToSleepNoUpdateLocked(eventTime, uid);
            }
        } finally {
            Trace.traceEnd(Trace.TRACE_TAG_POWER);
        }
        return true;
    }

由以上代码可见，待机是由于power按键。不是由于某些应用程序调用。

• 确认盒子待机按钮
  经按键盒子上的power键，是走的真待机重启流程，无以上打印。

• 确认自动待机接口
  做实验：设置中修改自动待机，过段时间待机后看日志。
  实验结论：自动待机调用的接口与power button不同，该问题不是由调用自动待机接口导致。
  日志如下：

sdcard/111.log |grep -nir 'sleep'                                          <
(standard input):451:01-01 03:20:50.225 D/SharedPreferencesLogger( 5198): Tried to log string preference MainSettings/sleepTime = 10800000
(standard input):492:01-01 03:21:00.542 V/SettingsProvider( 3120): Notifying for 0: content://settings/secure/sleep_timeout
(standard input):494:01-01 03:21:00.549 D/SharedPreferencesLogger( 5198): Tried to log string preference MainSettings/sleepTime = 1800000
(standard input):1434:01-01 03:51:00.538 I/PowerManagerService( 3120): Going to sleep due to screen timeout (uid 1000)...
(standard input):1437:01-01 03:51:00.540 I/PowerManagerService( 3120): Sleeping (uid 1000)...
(standard input):1713:01-01 04:05:03.885 I/PowerManagerService( 3120): Waking up from sleep (uid=1000 reason=android.policy:POWER)...

• 确认测试部“杀遥控器”方法
  经试验，在ATV9上无法屏蔽遥控器按键