android - 如何分析 Android/data/anr/traces.txt 文件？

Question

我的 Android 应用出现 ANR 错误。

它的踪迹在下面

“main”和“Thread-20153”是ANR的主要问题？

DALVIK THREADS:
(mutexes: tll=0 tsl=0 tscl=0 ghl=0)
"main" prio=5 tid=1 SUSPENDED
  | group="main" sCount=2 dsCount=1 obj=0x40aee490 self=0x1fbad70
  | sysTid=3805 nice=0 sched=0/0 cgrp=default handle=1074664744
  | schedstat=( 378517060062 270739989762 791048 ) utm=33581 stm=4270 core=0
  at android.app.ActivityThread.performResumeActivity(ActivityThread.java:~2812)
  at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:2851)
  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1287)
  at android.os.Handler.dispatchMessage(Handler.java:99)
  at android.os.Looper.loop(Looper.java:154)
  at android.app.ActivityThread.main(ActivityThread.java:4945)
  at java.lang.reflect.Method.invokeNative(Native Method)
  at java.lang.reflect.Method.invoke(Method.java:511)
  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
  at dalvik.system.NativeStart.main(Native Method)

"Thread-20153" prio=5 tid=22 TIMED_WAIT
  | group="main" sCount=1 dsCount=0 obj=0x41463760 self=0x3018ea0
  | sysTid=7466 nice=0 sched=0/0 cgrp=default handle=43164240
  | schedstat=( 32867433 91186523 62 ) utm=2 stm=1 core=0
  at java.lang.VMThread.sleep(Native Method)
  at java.lang.Thread.sleep(Thread.java:1047)
  at java.lang.Thread.sleep(Thread.java:1029)
  at com.mocoplex.adlib.AdlibManager$b.run(AdlibManager.java:1068)

"Timer-3" prio=5 tid=18 TIMED_WAIT
  | group="main" sCount=1 dsCount=0 obj=0x4114a748 self=0x2984f48
  | sysTid=5953 nice=0 sched=0/0 cgrp=default handle=46807576
  | schedstat=( 48645025 59570314 230 ) utm=4 stm=0 core=0
  at java.lang.Object.wait(Native Method)
  - waiting on <0x4114a748> (a java.util.Timer$TimerImpl)
  at java.lang.Object.wait(Object.java:401)
  at java.util.Timer$TimerImpl.run(Timer.java:238)

"Timer-2" prio=5 tid=20 TIMED_WAIT
  | group="main" sCount=1 dsCount=0 obj=0x41103688 self=0x2a53738
  | sysTid=5861 nice=0 sched=0/0 cgrp=default handle=43212688
  | schedstat=( 48461919 64544676 234 ) utm=4 stm=0 core=0
  at java.lang.Object.wait(Native Method)
  - waiting on <0x41103688> (a java.util.Timer$TimerImpl)
  at java.lang.Object.wait(Object.java:401)
  at java.util.Timer$TimerImpl.run(Timer.java:238)

"Binder Thread #4" prio=5 tid=16 NATIVE
  | group="main" sCount=1 dsCount=0 obj=0x410d7a90 self=0x2877ef8
  | sysTid=4496 nice=0 sched=0/0 cgrp=default handle=43222816
  | schedstat=( 556243916 622314442 2261 ) utm=30 stm=25 core=0
  at dalvik.system.NativeStart.run(Native Method)

"Binder Thread #3" prio=5 tid=21 NATIVE
  | group="main" sCount=1 dsCount=0 obj=0x40e9bd30 self=0x296a800
  | sysTid=3971 nice=0 sched=0/0 cgrp=default handle=43484856
  | schedstat=( 755767858 956115700 2837 ) utm=47 stm=28 core=0
  at dalvik.system.NativeStart.run(Native Method)

"Timer-1" prio=5 tid=12 TIMED_WAIT
  | group="main" sCount=1 dsCount=0 obj=0x40da4778 self=0x2817d28
  | sysTid=3955 nice=0 sched=0/0 cgrp=default handle=42812624
  | schedstat=( 78033460 63385008 360 ) utm=3 stm=4 core=0
  at java.lang.Object.wait(Native Method)
  - waiting on <0x40da4778> (a java.util.Timer$TimerImpl)
  at java.lang.Object.wait(Object.java:401)
  at java.util.Timer$TimerImpl.run(Timer.java:238)

"Thread-19213" prio=5 tid=14 NATIVE
  | group="main" sCount=1 dsCount=0 obj=0x40f47bc0 self=0x28397d8
  | sysTid=3894 nice=0 sched=0/0 cgrp=default handle=41749600
  | schedstat=( 6582580563 4471832242 16030 ) utm=317 stm=341 core=0
  at dalvik.system.NativeStart.run(Native Method)

"AsyncTask #1" prio=5 tid=19 WAIT
  | group="main" sCount=1 dsCount=0 obj=0x40ec6b60 self=0x2799b10
  | sysTid=3886 nice=10 sched=0/0 cgrp=default handle=41517920
  | schedstat=( 85784919 298645016 925 ) utm=5 stm=3 core=1
  at java.lang.Object.wait(Native Method)
  - waiting on <0x40ec70f8> (a java.lang.VMThread) held by tid=19 (AsyncTask #1)
  at java.lang.Thread.parkFor(Thread.java:1250)
  at sun.misc.Unsafe.park(Unsafe.java:323)
  at java.util.concurrent.locks.LockSupport.park(LockSupport.java:157)
  at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2022)
  at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:413)
  at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1009)
  at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1069)
  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:569)
  at java.lang.Thread.run(Thread.java:864)

"GAThread" prio=5 tid=17 WAIT
  | group="main" sCount=1 dsCount=0 obj=0x40e14cd8 self=0x265ea78
  | sysTid=3849 nice=0 sched=0/0 cgrp=default handle=40098064
  | schedstat=( 98105010984 112702484189 420613 ) utm=8608 stm=1202 core=0
  at java.lang.Object.wait(Native Method)
  - waiting on <0x40e14f48> (a java.lang.VMThread) held by tid=17 (GAThread)
  at java.lang.Thread.parkFor(Thread.java:1250)
  at sun.misc.Unsafe.park(Unsafe.java:323)
  at java.util.concurrent.locks.LockSupport.park(LockSupport.java:157)
  at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2022)
  at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:413)
  at com.google.analytics.tracking.android.GAThread.run(GAThread.java:518)

"Timer-0" prio=5 tid=15 TIMED_WAIT
  | group="main" sCount=1 dsCount=0 obj=0x40e0b258 self=0x2644908
  | sysTid=3847 nice=0 sched=0/0 cgrp=default handle=39852224
  | schedstat=( 8728025 27526859 49 ) utm=0 stm=0 core=0
  at java.lang.Object.wait(Native Method)
  - waiting on <0x40e0b258> (a java.util.Timer$TimerImpl)
  at java.lang.Object.wait(Object.java:401)
  at java.util.Timer$TimerImpl.run(Timer.java:238)

"CookieSyncManager" prio=5 tid=13 NATIVE
  | group="main" sCount=1 dsCount=0 obj=0x40dd51d8 self=0x2205750
  | sysTid=3839 nice=10 sched=0/0 cgrp=default handle=35690744
  | schedstat=( 3601070 48522953 21 ) utm=0 stm=0 core=0
  at android.os.MessageQueue.nativePollOnce(Native Method)
  at android.os.MessageQueue.next(MessageQueue.java:118)
  at android.os.Looper.loop(Looper.java:124)
  at android.webkit.WebSyncManager.run(WebSyncManager.java:90)
  at android.webkit.CookieSyncManager.run(CookieSyncManager.java:61)
  at java.lang.Thread.run(Thread.java:864)

"WebViewCoreThread" prio=5 tid=11 SUSPENDED
  | group="main" sCount=1 dsCount=0 obj=0x40dd1000 self=0x21d3268
  | sysTid=3837 nice=0 sched=0/0 cgrp=default handle=35024464
  | schedstat=( 108778259167 88950927721 209209 ) utm=9772 stm=1105 core=0
  at android.os.MessageQueue.nativePollOnce(Native Method)
  at android.os.MessageQueue.next(MessageQueue.java:118)
  at android.os.Looper.loop(Looper.java:124)
  at android.webkit.WebViewCore$WebCoreThread.run(WebViewCore.java:751)
  at java.lang.Thread.run(Thread.java:864)

"Binder Thread #2" prio=5 tid=10 NATIVE
  | group="main" sCount=1 dsCount=0 obj=0x40dab048 self=0x21b4f78
  | sysTid=3817 nice=0 sched=0/0 cgrp=default handle=35045376
  | schedstat=( 753906254 1313110342 2682 ) utm=62 stm=13 core=0
  at dalvik.system.NativeStart.run(Native Method)

"Binder Thread #1" prio=5 tid=9 NATIVE
  | group="main" sCount=1 dsCount=0 obj=0x40daa018 self=0x220b6c0
  | sysTid=3816 nice=0 sched=0/0 cgrp=default handle=35448760
  | schedstat=( 763366698 866455078 2684 ) utm=56 stm=20 core=0
  at dalvik.system.NativeStart.run(Native Method)

"FinalizerWatchdogDaemon" daemon prio=5 tid=8 WAIT
  | group="main" sCount=1 dsCount=0 obj=0x40da5910 self=0x21f8778
  | sysTid=3815 nice=0 sched=0/0 cgrp=default handle=35648680
  | schedstat=( 19226068 112762454 289 ) utm=1 stm=0 core=0
  at java.lang.Object.wait(Native Method)
  - waiting on <0x40af5ee8> (a java.lang.Daemons$FinalizerWatchdogDaemon)
  at java.lang.Object.wait(Object.java:364)
  at java.lang.Daemons$FinalizerWatchdogDaemon.run(Daemons.java:218)
  at java.lang.Thread.run(Thread.java:864)

"FinalizerDaemon" daemon prio=5 tid=7 WAIT
  | group="main" sCount=1 dsCount=0 obj=0x40da57b8 self=0x21a4a20
  | sysTid=3814 nice=0 sched=0/0 cgrp=default handle=35665600
  | schedstat=( 5843750080 8033416627 35050 ) utm=463 stm=121 core=0
  at java.lang.Object.wait(Native Method)
  - waiting on <0x40ae45e8> (a java.lang.ref.ReferenceQueue)
  at java.lang.Object.wait(Object.java:401)
  at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:102)
  at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:73)
  at java.lang.Daemons$FinalizerDaemon.run(Daemons.java:173)
  at java.lang.Thread.run(Thread.java:864)

"ReferenceQueueDaemon" daemon prio=5 tid=6 WAIT
  | group="main" sCount=1 dsCount=0 obj=0x40da5650 self=0x21ce2e0
  | sysTid=3813 nice=0 sched=0/0 cgrp=default handle=35653416
  | schedstat=( 1158782901 1858612107 6973 ) utm=98 stm=17 core=0
  at java.lang.Object.wait(Native Method)
  - waiting on <0x40ae4510> 
  at java.lang.Object.wait(Object.java:364)
  at java.lang.Daemons$ReferenceQueueDaemon.run(Daemons.java:133)
  at java.lang.Thread.run(Thread.java:864)

"Compiler" daemon prio=5 tid=5 VMWAIT
  | group="system" sCount=1 dsCount=0 obj=0x40da5560 self=0x21ee180
  | sysTid=3812 nice=0 sched=0/0 cgrp=default handle=34074560
  | schedstat=( 1770019 3204346 7 ) utm=0 stm=0 core=0
  at dalvik.system.NativeStart.run(Native Method)

"JDWP" daemon prio=5 tid=4 VMWAIT
  | group="system" sCount=1 dsCount=0 obj=0x40da5478 self=0x21f1988
  | sysTid=3811 nice=0 sched=0/0 cgrp=default handle=34075744
  | schedstat=( 681671184 898101870 8811 ) utm=24 stm=44 core=0
  at dalvik.system.NativeStart.run(Native Method)

"Signal Catcher" daemon prio=5 tid=3 RUNNABLE
  | group="system" sCount=0 dsCount=0 obj=0x40da5380 self=0x220ebd0
  | sysTid=3809 nice=0 sched=0/0 cgrp=default handle=34074272
  | schedstat=( 6927491 39001465 8 ) utm=0 stm=0 core=0
  at dalvik.system.NativeStart.run(Native Method)

"GC" daemon prio=5 tid=2 VMWAIT
  | group="system" sCount=1 dsCount=0 obj=0x40da52a0 self=0x20801f0
  | sysTid=3807 nice=0 sched=0/0 cgrp=default handle=35471536
  | schedstat=( 2660827614 3416412375 2552 ) utm=254 stm=12 core=0
  at dalvik.system.NativeStart.run(Native Method)

----- end 3805 -----

但我不知道问题代码在哪里。

如何解释？

痕迹太长，问题太幼稚。您不必解释整个错误，只需告知如何解释主题即可。

Answer 1

到目前为止，它看起来没有问题。正如我们在这里所看到的，主线程被暂停，另外一个称为 WebViewCoreThread 的线程也被暂停，除了这两个之外，其他所有线程似乎都很好，无论是进行经典等待还是定时等待，或者只是运行。

这里可能发生 ANR 的 2 个可能原因可能是因为 2 个线程中的任何一个被无限期挂起，并且 android(系统)在等待一段时间后会认为它们已经死了，比如几秒钟，因此抛出 ANR。

您可能想检查这些线程中是否有任何断点，或者这些线程中的任何一个正在执行一些涉及实例化导致 gc 的对象的繁重操作，这也可能导致线程进入挂起模式。

同时检查日志看门狗杀死任何系统进程的任何迹象。可能有助于解决这个问题!