Android 原生崩溃

Question

我们没有使用任何原生代码，我们的应用也没有任何原生传递依赖。

在最近发布后(我们更新了几个依赖项并添加了新的)，我们开始在 Google Play 中看到这样的崩溃:

native: pc 000000000006a548  /system/lib64/libc.so (tgkill+8)
  native: pc 0000000000067cd8  /system/lib64/libc.so (pthread_kill+68)
  native: pc 0000000000024b78  /system/lib64/libc.so (raise+28)
  native: pc 000000000001f318  /system/lib64/libc.so (abort+60)
  native: pc 000000000043471c  /system/lib64/libart.so (_ZN3art7Runtime5AbortEv+324)
  native: pc 0000000000137224  /system/lib64/libart.so (_ZN3art10LogMessageD2Ev+3136)
  native: pc 000000000030d988  /system/lib64/libart.so (_ZN3art9JavaVMExt8JniAbortEPKcS2_+2080)
  native: pc 000000000030df24  /system/lib64/libart.so (_ZN3art9JavaVMExt9JniAbortFEPKcS2_z+224)
  native: pc 000000000034ec64  /system/lib64/libart.so (_ZN3art3JNI15CallVoidMethodVEP7_JNIEnvP8_jobjectP10_jmethodIDSt9__va_list+616)
  native: pc 0000000000099094  /system/lib64/libandroid_runtime.so
  native: pc 0000000002a71ac4  /system/framework/arm64/boot.oat

我认为这只是 Android 本身，但可能是什么原因？任何帮助表示赞赏。

是否有关于此调用含义的信息？是虚拟机调用吗？

_ZN3art3JNI15CallVoidMethodVEP7_JNIEnvP8_jobjectP10_jmethodIDSt9__va_list

Answer 1

首先，我认为麻烦的问题是找到根本原因，因为 Play 控制台不提供完整的堆栈跟踪，而且堆栈跟踪也会根据设备/Android 版本略有变化。我已经看到这个 tgkill 原生崩溃有许多变体，如下所示，但我得出的结论是所有这些崩溃都可以归因于 bug in the Support Library

_ZN3art3JNI15CallVoidMethodVEP7_JNIEnvP8_jobjectP10_jmethodIDSt9__va_list+440_ZN3art3JNI15CallVoidMethodVEP7_JNIEnvP8_jobjectP10_jmethodIDSt9__va_list+616art::JNI::CallVoidMethodV(_JNIEnv*, _jobject*, _jmethodID*, std::__va_list)+580_ZN3art3JNI15CallVoidMethodVEP7_JNIEnvP8_jobjectP10_jmethodIDSt9__va_list+470_ZN3art3JNI15CallVoidMethodVEP7_JNIEnvP8_jobjectP10_jmethodIDSt9__va_list+560

经过努力，我能够在包含 AppBarLayout + CollapsingToolbarLayout + RecyclerView 的应用程序屏幕上的 6.0 设备上重新创建它。 CollapsingToolbarLayout 具有以下滚动标志

app:layout_scrollFlags="scroll|exitUntilCollapsed|snap"

通过一直滚动到底部然后快速回到顶部，我能够在大多数情况下重新创建崩溃，从而产生以下堆栈跟踪

04-18 14:06:53.814 27077-27077/com.PACKAGE.NAME.debug A/art: art/runtime/java_vm_ext.cc:410] JNI DETECTED ERROR IN APPLICATION: can't call void android.view.View.setElevation(float) on null object
art/runtime/java_vm_ext.cc:410]     in call to CallVoidMethodV
art/runtime/java_vm_ext.cc:410]     from void android.animation.PropertyValuesHolder.nCallFloatMethod(java.lang.Object, long, float)
art/runtime/java_vm_ext.cc:410] "main" prio=5 tid=1 Runnable
art/runtime/java_vm_ext.cc:410]   | group="main" sCount=0 dsCount=0 obj=0x740f26e8 self=0x558c24bf70
art/runtime/java_vm_ext.cc:410]   | sysTid=27077 nice=-6 cgrp=default sched=0/0 handle=0x7f8f6e8fc8
art/runtime/java_vm_ext.cc:410]   | state=R schedstat=( 76543056125 12869243427 123563 ) utm=6830 stm=824 core=2 HZ=100
art/runtime/java_vm_ext.cc:410]   | stack=0x7fef761000-0x7fef763000 stackSize=8MB
art/runtime/java_vm_ext.cc:410]   | held mutexes= "mutator lock"(shared held)
art/runtime/java_vm_ext.cc:410]   native: #00 pc 00000000004903d8  /system/lib64/libart.so (_ZN3art15DumpNativeStackERNSt3__113basic_ostreamIcNS0_11char_traitsIcEEEEiPKcPNS_9ArtMethodEPv+236)
art/runtime/java_vm_ext.cc:410]   native: #01 pc 000000000045f598  /system/lib64/libart.so (_ZNK3art6Thread4DumpERNSt3__113basic_ostreamIcNS1_11char_traitsIcEEEE+220)
art/runtime/java_vm_ext.cc:410]   native: #02 pc 0000000000312970  /system/lib64/libart.so (_ZN3art9JavaVMExt8JniAbortEPKcS2_+1000)
art/runtime/java_vm_ext.cc:410]   native: #03 pc 0000000000313228  /system/lib64/libart.so (_ZN3art9JavaVMExt9JniAbortVEPKcS2_St9__va_list+116)
art/runtime/java_vm_ext.cc:410]   native: #04 pc 000000000014501c  /system/lib64/libart.so (_ZN3art11ScopedCheck6AbortFEPKcz+144)
art/runtime/java_vm_ext.cc:410]   native: #05 pc 000000000014557c  /system/lib64/libart.so (_ZN3art11ScopedCheck17CheckMethodAndSigERNS_18ScopedObjectAccessEP8_jobjectP7_jclassP10_jmethodIDNS_9Primitive4TypeENS_10InvokeTypeE+1084)
art/runtime/java_vm_ext.cc:410]   native: #06 pc 000000000015eaf8  /system/lib64/libart.so (_ZN3art8CheckJNI11CallMethodVEPKcP7_JNIEnvP8_jobjectP7_jclassP10_jmethodIDSt9__va_listNS_9Primitive4TypeENS_10InvokeTypeE+724)
art/runtime/java_vm_ext.cc:410]   native: #07 pc 0000000000160d98  /system/lib64/libart.so (_ZN3art8CheckJNI15CallVoidMethodVEP7_JNIEnvP8_jobjectP10_jmethodIDSt9__va_list+68)
art/runtime/java_vm_ext.cc:410]   native: #08 pc 0000000000098fe0  /system/lib64/libandroid_runtime.so (???)
art/runtime/java_vm_ext.cc:410]   native: #09 pc 0000000000ad2cc4  /system/framework/arm64/boot.oat (Java_android_animation_PropertyValuesHolder_nCallFloatMethod__Ljava_lang_Object_2JF+168)
art/runtime/java_vm_ext.cc:410]   at android.animation.PropertyValuesHolder.nCallFloatMethod(Native method)
art/runtime/java_vm_ext.cc:410]   at android.animation.PropertyValuesHolder.access$400(PropertyValuesHolder.java:37)
art/runtime/java_vm_ext.cc:410]   at android.animation.PropertyValuesHolder$FloatPropertyValuesHolder.setAnimatedValue(PropertyValuesHolder.java:1296)
art/runtime/java_vm_ext.cc:410]   at android.animation.ObjectAnimator.animateValue(ObjectAnimator.java:981)
art/runtime/java_vm_ext.cc:410]   at android.animation.ValueAnimator.animationFrame(ValueAnimator.java:1384)
art/runtime/java_vm_ext.cc:410]   at android.animation.ValueAnimator.doAnimationFrame(ValueAnimator.java:1427)
art/runtime/java_vm_ext.cc:410]   at android.animation.ValueAnimator$AnimationHandler.doAnimationFrame(ValueAnimator.java:759)
art/runtime/java_vm_ext.cc:410]   at android.animation.ValueAnimator$AnimationHandler$1.run(ValueAnimator.java:801)
art/runtime/java_vm_ext.cc:410]   at android.view.Choreographer$CallbackRecord.run(Choreographer.java:858)
art/runtime/java_vm_ext.cc:410]   at android.view.Choreographer.doCallbacks(Choreographer.java:670)
art/runtime/java_vm_ext.cc:410]   at android.view.Choreographer.doFrame(Choreographer.java:603)
art/runtime/java_vm_ext.cc:410]   at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:844)
art/runtime/java_vm_ext.cc:410]   at android.os.Handler.handleCallback(Handler.java:743)
art/runtime/java_vm_ext.cc:410]   at android.os.Handler.dispatchMessage(Handler.java:95)
art/runtime/java_vm_ext.cc:410]   at android.os.Looper.loop(Looper.java:171)
art/runtime/java_vm_ext.cc:410]   at android.app.ActivityThread.main(ActivityThread.java:5417)
art/runtime/java_vm_ext.cc:410]   at java.lang.reflect.Method.invoke!(Native method)
art/runtime/java_vm_ext.cc:410]   at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
art/runtime/java_vm_ext.cc:410]   at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
art/runtime/java_vm_ext.cc:410] 

此问题的根本原因似乎与详细的支持库错误有关 here和 here

解决方案

就我而言，我所要做的就是删除 snap 滚动标志并推出该更改。随着这一变化，我在 Play 管理中心中不再看到任何这些原生崩溃。

在其他情况下，如果您在 AppBarLayout 上使用 StateListAnimator，您可以尝试 this