【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：

[email protected]:~/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!

[email protected]:~/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