Issue 1:
Steps to Reproduce

Can not reproduce problem myself, however I'm having multiple crashes reported in Google Play console from several users. The problem is only happens on Android 4.4

Logs

signal 11 (SIGSEGV), code 1 (SEGV_MAPERR)
libhoudini.so

*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
pid: 0, tid: 0 >>> com.appname.app <<<

backtrace:
#00 pc 00000000000c2582 /system/lib/libhoudini.so
#01 pc 0000000000015edf /system/lib/arm/libc.so
#02 pc 00000000000ae6b6 /system/lib/libhoudini.so
#03 pc 0000000000062f8b <unknown>
#04 pc 00000000000ab3c5 /system/lib/libhoudini.so
#05 pc 0000000000015edf /system/lib/arm/libc.so
#06 pc 00000000000aadcc /system/lib/libhoudini.so
#07 pc 00000000ffffffff <unknown>
#08 pc 00000000000f454c /system/lib/libhoudini.so
#09 pc 00000000ffffffff <unknown>
#10 pc 000000000000dfff [stack:24824]
#11 pc 000000000018488a /system/lib/libhoudini.so

[✓] Flutter (Channel beta, v0.9.4, on Linux, locale en_US.UTF-8)
• Flutter version 0.9.4 at /home/flutter/flutter_v0.9.4-beta
• Framework revision f37c235c32 (5 weeks ago), 2018-09-25 17:45:40 -0400
• Engine revision 74625aed32
• Dart version 2.1.0-dev.5.0.flutter-a2eb050044

[✓] Android toolchain - develop for Android devices (Android SDK 27.0.3)
• Android SDK at /home/android/sdk
• Android NDK location not configured (optional; useful for native profiling support)
• Platform android-27, build-tools 27.0.3
• ANDROID_HOME = /home/android/sdk
• Java binary at: /home/android/src/android-studio/jre/bin/java
• Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1024-b01)
• All Android licenses accepted.

[✓] Android Studio (version 3.1)
• Android Studio at /home/android/src/android-studio
• Flutter plugin version 24.2.1
• Dart plugin version 173.4700
• Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1024-b01)

[!] Connected devices
! No devices available

Issue 2:
Steps to Reproduce

1.use simplest demo,set ndk in build.gradle,designated cpu to armeabi-v7a

ndk {
abiFilters "armeabi-v7a"
}

run the app on yeshen simulator(夜神模拟器),which one is arm cpu type

the app is crash

Logs

01-27 10:57:03.817 4018-4035/com.tencent.lgs A/libc: Fatal signal 4 (SIGILL) at 0x00000fb2 (code=0), thread 4035 (1.ui)
01-27 10:57:03.917 157-157/? I/DEBUG: *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
01-27 10:57:03.917 157-157/? I/DEBUG: Build fingerprint: 'samsung/SM-G955F/SM-G955F:4.4.2/JLS36C/381190110:user/release-keys'
01-27 10:57:03.917 157-157/? I/DEBUG: Revision: '0'
01-27 10:57:03.917 157-157/? I/DEBUG: pid: 4018, tid: 4035, name: 1.ui >>> com.tencent.lgs <<<
01-27 10:57:03.917 157-157/? I/DEBUG: signal 6 (SIGABRT), code 0 (SI_USER), fault addr --------
01-27 10:57:03.947 157-157/? I/DEBUG: eax 00000000 ebx 00000fc3 ecx 00000006 edx 00000000
01-27 10:57:03.947 157-157/? I/DEBUG: esi 00000008 edi 1a215030
01-27 10:57:03.947 157-157/? I/DEBUG: xcs 00000073 xds 0000007b xes 0000007b xfs 00000043 xss 0000007b
01-27 10:57:03.947 157-157/? I/DEBUG: eip 7ebd1700 ebp 7e53b6ac esp 7e53b694 flags 00200246
01-27 10:57:03.947 157-157/? I/DEBUG: backtrace:
01-27 10:57:03.947 157-157/? I/DEBUG: #00 pc 00194700 /system/lib/libhoudini.so
01-27 10:57:03.947 157-157/? I/DEBUG: stack:
01-27 10:57:03.947 157-157/? I/DEBUG: 7e53b654 7ed20de4 /system/lib/libhoudini.so
01-27 10:57:03.947 157-157/? I/DEBUG: 7e53b658 7ed20de4 /system/lib/libhoudini.so
01-27 10:57:03.947 157-157/? I/DEBUG: 7e53b65c 7e53b6ec [stack:4035]
01-27 10:57:03.947 157-157/? I/DEBUG: 7e53b660 7eb01dd7 /system/lib/libhoudini.so
01-27 10:57:03.947 157-157/? I/DEBUG: 7e53b664 00000002
01-27 10:57:03.947 157-157/? I/DEBUG: 7e53b668 00000000
01-27 10:57:03.947 157-157/? I/DEBUG: 7e53b66c 7ec8db30 /system/lib/libhoudini.so
01-27 10:57:03.947 157-157/? I/DEBUG: 7e53b670 0000036c
01-27 10:57:03.947 157-157/? I/DEBUG: 7e53b674 7e53b724 [stack:4035]
01-27 10:57:03.947 157-157/? I/DEBUG: 7e53b678 00000001
01-27 10:57:03.947 157-157/? I/DEBUG: 7e53b67c 00000000
01-27 10:57:03.947 157-157/? I/DEBUG: 7e53b680 7e63aba0
01-27 10:57:03.947 157-157/? I/DEBUG: 7e53b684 7ec8bf4c /system/lib/libhoudini.so
01-27 10:57:03.947 157-157/? I/DEBUG: 7e53b688 00000000
01-27 10:57:03.947 157-157/? I/DEBUG: 7e53b68c 7e53b6ac [stack:4035]
01-27 10:57:03.947 157-157/? I/DEBUG: 7e53b690 7ebd1682 /system/lib/libhoudini.so
01-27 10:57:03.947 157-157/? I/DEBUG: #00 7e53b694 7e53b6a4 [stack:4035]
01-27 10:57:03.947 157-157/? I/DEBUG: 7e53b698 00000006
01-27 10:57:03.947 157-157/? I/DEBUG: 7e53b69c 0000029c
01-27 10:57:03.947 157-157/? I/DEBUG: 7e53b6a0 00000001
01-27 10:57:03.947 157-157/? I/DEBUG: 7e53b6a4 00000028
01-27 10:57:03.947 157-157/? I/DEBUG: 7e53b6a8 00000000
01-27 10:57:03.947 157-157/? I/DEBUG: 7e53b6ac 7e53b6cc [stack:4035]
01-27 10:57:03.947 157-157/? I/DEBUG: 7e53b6b0 7ebcb351 /system/lib/libhoudini.so
01-27 10:57:03.947 157-157/? I/DEBUG: 7e53b6b4 1a215030 [stack:4034]
01-27 10:57:03.947 157-157/? I/DEBUG: 7e53b6b8 00000b01
01-27 10:57:03.947 157-157/? I/DEBUG: 7e53b6bc 000002f5
01-27 10:57:03.947 157-157/? I/DEBUG: 7e53b6c0 1a215030 [stack:4034]
01-27 10:57:03.947 157-157/? I/DEBUG: 7e53b6c4 00000000
01-27 10:57:03.947 157-157/? I/DEBUG: 7e53b6c8 00000001
01-27 10:57:03.947 157-157/? I/DEBUG: 7e53b6cc 7e53b6ec [stack:4035]
01-27 10:57:03.947 157-157/? I/DEBUG: 7e53b6d0 7eb01848 /system/lib/libhoudini.so
01-27 10:57:03.967 308-4044/? W/ActivityManager: Force finishing activity com.tencent.lgs/shequ.qqx5.tencent.com.x5shequmain.MainActivity
01-27 10:57:03.967 308-331/? I/BootReceiver: Copying /data/tombstones/tombstone_00 to DropBox (SYSTEM_TOMBSTONE)
01-27 10:57:03.977 161-161/? D/Zygote: Process 4018 exited cleanly (255)
01-27 10:57:04.267 308-4044/? I/WindowManager: Screenshot max retries 4 of Token{4a972288 ActivityRecord{4a9acd9c u0 com.tencent.lgs/shequ.qqx5.tencent.com.x5shequmain.MainActivity t22 f}} appWin=Window{4a80b7a0 u0 Starting com.tencent.lgs} drawState=4
01-27 10:57:04.267 308-4044/? W/WindowManager: Screenshot failure taking screenshot for (1280x720) to layer 21015
01-27 10:57:04.267 308-4044/? W/ActivityManager: Exception thrown during pause
android.os.DeadObjectException
at android.os.BinderProxy.transact(Native Method)
at android.app.ApplicationThreadProxy.schedulePauseActivity(ApplicationThreadNative.java:660)
at com.android.server.am.ActivityStack.startPausingLocked(ActivityStack.java:761)
at com.android.server.am.ActivityStack.finishActivityLocked(ActivityStack.java:2456)
at com.android.server.am.ActivityStack.finishTopRunningActivityLocked(ActivityStack.java:2330)
at com.android.server.am.ActivityStackSupervisor.finishTopRunningActivityLocked(ActivityStackSupervisor.java:2035)
at com.android.server.am.ActivityManagerService.handleAppCrashLocked(ActivityManagerService.java:9573)
at com.android.server.am.ActivityManagerService.makeAppCrashingLocked(ActivityManagerService.java:9466)
at com.android.server.am.ActivityManagerService.crashApplication(ActivityManagerService.java:10119)
at com.android.server.am.ActivityManagerService.handleApplicationCrashInner(ActivityManagerService.java:9662)
at com.android.server.am.NativeCrashListener$NativeCrashReporter.run(NativeCrashListener.java:86)

D:\Program Files\Nox\bin>flutter doctor -v
[âˆš] Flutter (Channel beta, v1.0.0, on Microsoft Windows [Version 6.1.7601],
locale zh-CN)
â€¢ Flutter version 1.0.0 at D:\flutter
â€¢ Framework revision 5391447fae (8 weeks ago), 2018-11-29 19:41:26 -0800
â€¢ Engine revision 7375a0f414
â€¢ Dart version 2.1.0 (build 2.1.0-dev.9.4 f9ebf21297)

[!] Android toolchain - develop for Android devices (Android SDK 28.0.3)
â€¢ Android SDK at E:\Users\Administrator\AppData\Local\Android\sdk
â€¢ Android NDK location not configured (optional; useful for native profiling support)
â€¢ Platform android-28, build-tools 28.0.3
â€¢ ANDROID_HOME = E:\Users\Administrator\AppData\Local\Android\sdk
â€¢ Java binary at: E:\Program Files\Android\Android Studio\jre\bin\java
â€¢ Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1136-b06)
! Some Android licenses not accepted. To resolve this, run: flutter doctor --android-licenses

[âˆš] Android Studio (version 3.2)
â€¢ Android Studio at E:\Program Files\Android\Android Studio
â€¢ Flutter plugin version 29.1.1
â€¢ Dart plugin version 181.5656
â€¢ Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1136-b06)