Created by: KernelErr

在尝试用Flutter结合Paddle-lite做一个实时目标检测的Demo，将Paddle-lite的官方Demo封装成了一个MethodChanel，结果发现每次检测新的一帧的时候都需要进行loadModel，否则检测一帧之后就会出现错误。使用的模型是Yolov3 Tiny。

报错信息：

F/libc    (16823): Fatal signal 11 (SIGSEGV), code 2 (SEGV_ACCERR), fault addr 0x70c2600000 in tid 17433 (Thread-8), pid 16823 (mple.realtimeod)
*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
Build fingerprint: 'HONOR/HLK-AL00/HWHLK-H:9/HONORHLK-AL00/9.1.1.165C00:user/release-keys'
Revision: '0'
ABI: 'arm64'
Happend: 'Wed Mar 18 14:36:21 2020
'
SYSVMTYPE: Maple
APPVMTYPE: Art
pid: 16823, tid: 17433, name: Thread-8  >>> com.example.realtimeod <<<
signal 11 (SIGSEGV), code 2 (SEGV_ACCERR), fault addr 0x70c2600000
    x0  00000070c24d6b80  x1  0000000000000000  x2  00000000004d6b00  x3  00000070c2600000
    x4  00000070c2ad6b80  x5  0000000000000004  x6  0000000000000001  x7  0000000000000400
    x8  00000070c24d6b80  x9  0000000000000180  x10 0000000000000001  x11 0000000000000009
    x12 000000000000000a  x13 000000000000000a  x14 0000000000000007  x15 00000070b2efe2e8
    x16 00000070db338ba8  x17 00000071892e02b0  x18 00000070c5e05c70  x19 00000070b2efe338
    x20 0000000000000080  x21 000000000000000c  x22 00000070dc9f3880  x23 000000000000000c
    x24 00000070c6600040  x25 0000000000000019  x26 0000000000600000  x27 0000000000000008
    x28 00000070c248eb80  x29 00000070b2efe0f0
    sp  00000070b2efe080  lr  00000070db27988c  pc  00000071892e03b0
backtrace:
    #00 pc 000000000001e3b0  /system/lib64/libc.so (memset+256)
    #01 pc 00000000000b9888  /data/app/com.example.realtimeod-Vc9i5SwY5rib1NHlrS_wog==/lib/arm64/libpaddle_lite_jni.so

Flutter信息：

[✓] Flutter (Channel stable, v1.12.13+hotfix.8, on Linux, locale zh_CN.UTF-8)
    • Flutter version 1.12.13+hotfix.8 at /home/li/development/flutter
    • Framework revision 0b8abb4724 (5 周前), 2020-02-11 11:44:36 -0800
    • Engine revision e1e6ced81d
    • Dart version 2.7.0

 
[✓] Android toolchain - develop for Android devices (Android SDK version 29.0.3)
    • Android SDK at /home/li/Android/Sdk
    • Android NDK location not configured (optional; useful for native profiling
      support)
    • Platform android-29, build-tools 29.0.3
    • Java binary at: /home/li/development/android-studio/jre/bin/java
    • Java version OpenJDK Runtime Environment (build
      1.8.0_212-release-1586-b4-5784211)
    • All Android licenses accepted.

[✓] Android Studio (version 3.6)
    • Android Studio at /home/li/development/android-studio
    • Flutter plugin version 44.0.2
    • Dart plugin version 192.7761
    • Java version OpenJDK Runtime Environment (build
      1.8.0_212-release-1586-b4-5784211)

[✓] VS Code (version 1.43.0)
    • VS Code at /usr/share/code
    • Flutter extension version 3.8.1

[✓] Connected device (1 available)
    • HLK AL00 • C7Y6R19725003580 • android-arm64 • Android 9 (API 28)

• No issues found!