Unity Crash When Changing Scene frequently

when i change Scene A to Scene B,i found my game has 25% posibility crash.I got the crash log like:

F/libc (25043): Fatal signal 11 (SIGSEGV) at 0x00000036 (code=1), thread 25064 (UnityMain)

I/DEBUG ( 1281):

I/DEBUG ( 1281): pid: 25043, tid: 25064, name: UnityMain >>> com.wooduan.qwzw.m4399.test <<<

I/DEBUG ( 1281): signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 00000036

I/DEBUG ( 1281): backtrace:

I/DEBUG ( 1281): #00 pc 000fc97c /data/app-lib/com.wooduan.qwzw.m4399.test-1/libunity.so (Unity::GameObject::IsActive() const+8)

I/DEBUG ( 1281): #01 pc 007ccdb8 /data/app-lib/com.wooduan.qwzw.m4399.test-1/libunity.so (UI::CanvasRenderer::SyncDirtyElements()+40)

I/DEBUG ( 1281): #02 pc 007d30cc /data/app-lib/com.wooduan.qwzw.m4399.test-1/libunity.so (UI::CanvasManager::UpdateDirtyRenderers(UI::Canvas*)+196)

I/DEBUG ( 1281): #03 pc 007d2ec8 /data/app-lib/com.wooduan.qwzw.m4399.test-1/libunity.so (UI::Canvas::UpdateBatches(bool)+88)

I/DEBUG ( 1281): #04 pc 007d4ce4 /data/app-lib/com.wooduan.qwzw.m4399.test-1/libunity.so (UI::CanvasManager::WillRenderCanvases()+64)

I/DEBUG ( 1281): #05 pc 003a7fa8 /data/app-lib/com.wooduan.qwzw.m4399.test-1/libunity.so (PlayerLoop(bool, bool, IHookEvent*)+3392)

I/DEBUG ( 1281): #06 pc 00513b2c /data/app-lib/com.wooduan.qwzw.m4399.test-1/libunity.so (UnityPlayerLoop()+700)

I/DEBUG ( 1281): #07 pc 005192c8 /data/app-lib/com.wooduan.qwzw.m4399.test-1/libunity.so (nativeRender(_JNIEnv*, _jobject*)+264)

I/DEBUG ( 1281): #08 pc 0002060c /system/lib/libdvm.so (dvmPlatformInvoke+112)

I/DEBUG ( 1281): #09 pc 000512e7 /system/lib/libdvm.so (dvmCallJNIMethod(unsigned int const*, JValue*, Method const*, Thread*)+398)

I/DEBUG ( 1281): #10 pc 00000214 /dev/ashmem/dalvik-jit-code-cache (deleted)

What is the UI::CanvasManager::UpdateDirtyRenderers(UI::Canvas*)????

It's the UICanvas something wrong?

I use the Unity 5.3.0f4 Version .

Could anyone can give me some hints?

Thanks a lot !