crash anr

最新推荐文章于 2024-06-19 15:27:57 发布

原创最新推荐文章于 2024-06-19 15:27:57 发布 · 784 阅读

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本文介绍了Android系统中应用程序的异常处理，包括ANR（Application Not Responding）和Crash的处理流程。涉及到关键日志如am_low_memory、am_pss、am_meminfo等，以及系统如何响应这些情况。当应用无响应或崩溃时，系统会显示错误对话框，并记录相关信息。同时，文章列举了不同场景下的日志示例，如崩溃、清除任务和命令强制杀死应用的场景。

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am_low_memory：位于AMS.killAllBackgroundProcesses或者AMS.appDiedLocked，记录当前Lru进程队列长度。
am_pss：位于AMS.applyOomAdjLocked或者AMS.requestPssLocked
am_meminfo：位于AMS.dumpApplicationMemoryUsage
am_proc_start:位于AMS.startProcessLocked，启动进程
am_proc_bound:位于AMS.attachApplicationLocked
am_kill: 位于ProcessRecord.kill，杀掉进程
am_anr: 位于AMS.appNotResponding
am_crash:位于AMS.handleApplicationCrashInner
am_wtf:位于AMS.handleApplicationWtf
am_activity_launch_time：位于ActivityRecord.reportLaunchTimeLocked()，后面两个参数分别是thisTime和 totalTime
am_activity_fully_drawn_time:位于ActivityRecord.reportFullyDrawnLocked, 后面两个参数分别是thisTime和 totalTime
am_broadcast_discard_filter:位于BroadcastQueue.logBroadcastReceiverDiscardLocked
am_broadcast_discard_app:位于BroadcastQueue.logBroadcastReceiverDiscardLocked

android/frameworks/base/core/res/res/layout/app_error_dialog.xml:41: android:text="@string/aerr_close_app"
android/frameworks/base/core/res/res/layout/app_anr_dialog.xml:28: android:text="@string/aerr_close_app"

    <string name="aerr_application" msgid="250320989337856518">"<xliff:g id="APPLICATION">%1$s</xliff:g>已停止运行"</string>
    <string name="aerr_process" msgid="6201597323218674729">"<xliff:g id="PROCESS">%1$s</xliff:g>已停止运行"</string>
    <string name="aerr_application_repeated" msgid="3146328699537439573">"<xliff:g id="APPLICATION">%1$s</xliff:g>屡次停止运行"</string>
    <string name="aerr_process_repeated" msgid="6235302956890402259">"<xliff:g id="PROCESS">%1$s</xliff:g>屡次停止运行"</string>

// 5-minute timeout, then we automatically dismiss the crash dialog

frameworks/base/services/core/java/com/android/server/am/AppErrorDialog.java

"aerr_process" 有多个apk应用该进程

"aerr_application" 只有一个apk应用该进程

frameworks/base/services/core/java/com/android/server/am/AppErrors.java

handleShowAppErrorUi

/frameworks/base/services/core/java/com/android/server/am/ActivityManagerService.java

case SHOW_ERROR_UI_MSG:

frameworks/base/services/core/java/com/android/server/am/AppErrors.java

crashApplicationInner

msg.what = ActivityManagerService.SHOW_ERROR_UI_MSG;

crashApplication

frameworks/base/services/core/java/com/android/server/am/ActivityManagerService.java

handleApplicationCrashInner

handleApplicationCrash

--------------------------------------------------------

-------------------

1、崩溃

02-15 11:37:27.373 W/ActivityManager( 4235): Force finishing activity com.android.music/com.codeaurora.music.custom.PermissionActivity
02-15 11:37:27.423 I/WindowManager( 4235): Destroying surface Surface(name=com.android.music/com.codeaurora.music.custom.PermissionActivity) called by com.android.server.wm.WindowStateAnimator.destroySurface:2014 com.android.server.wm.WindowStateAnimator.destroySurfaceLocked:881 com.android.server.wm.WindowState.removeLocked:1449 com.android.server.wm.WindowManagerService.removeWindowInnerLocked:2485 com.android.server.wm.WindowManagerService.removeWindowLocked:2443 com.android.server.wm.WindowManagerService.removeWindowLocked:2312 com.android.server.wm.AppWindowToken.removeAllWindows:530 com.android.server.wm.AppWindowToken.removeAppFromTaskLocked:326
02-15 11:37:27.471 I/ActivityManager( 4235): Killing 12078:com.android.music/u0a78 (adj 904): crash
02-15 11:37:27.473 D/ActivityManager( 4235): cleanUpApplicationRecord -- 12078

2、清楚任务

02-15 06:53:21.916 3109 5617 I ActivityManager: Killing 7137:com.android.mms/u0a25 (adj 900): remove task
02-15 06:53:22.024 3109 3197 D ActivityManager: cleanUpApplicationRecord -- 7137

3、命令强制kill

02-15 06:55:11.549 3109 3197 I ActivityManager: Process com.android.mms (pid 8655) has died
02-15 06:55:11.549 3109 3197 D ActivityManager: cleanUpApplicationRecord -- 8655
02-15 06:55:11.550 3109 3197 W ActivityManager: Force removing ActivityRecord{7e5d5dd u0 com.android.mms/.ui.ConversationList t5}: app died, no saved state

ProcessRecord.java

kill{

            if (noisy) {
                Slog.i(TAG, "Killing " + toShortString() + " (adj " + setAdj + "): " + reason);//I/ActivityManager( 2482): Killing 5538:com.android.email/u0a56 (adj 500): crash
            }
            EventLog.writeEvent(EventLogTags.AM_KILL, userId, pid, processName, setAdj, reason);//I/am_kill ( 2482): [0,5538,com.android.email,500,crash]

}

frameworks/base/services/core/java/com/android/server/am/ActivityManagerService.java

cleanUpApplicationRecord