android崩溃日志__android_log_bwrite、

出现崩溃如下

***** FATAL SIGNAL RECEIVED ******* 
Received fatal signal: SIGABRT(6)   PID: 12469

***** SIGNAL SIGABRT(6)

******* STACKDUMP *******
    stack dump [1]  
    stack dump [2]  __kernel_rt_sigreturn
    stack dump [3]  abort
    stack dump [4]  __android_log_bwrite
    stack dump [5]  
    stack dump [6]  
    stack dump [7]  
    stack dump [8]  
    stack dump [9]  _ZN7android10uirenderer12renderthread12RenderThread10threadLoopEv
    stack dump [10]  _ZN7android6Thread11_threadLoopEPv
    stack dump [11]  _ZN7android14AndroidRuntime15javaThreadShellEPv
    stack dump [12]  
    stack dump [13]  

logcat输出

#00 pc 000000000001d4ac  /system/lib64/libc.so (syscall+28)
#01 pc 00000000000673fc  /system/lib64/libc.so (pthread_cond_wait+96)
#02 pc 0000000000070520  /system/lib64/libhwui.so (android::uirenderer::renderthread::RenderProxy::fence()+156)
#03 pc 0000000000615158  /system/framework/arm64/boot-framework.oat (offset 0x614000) (android.os.Binder.restoreCallingIdentity [DEDUPED]+152)
#04 pc 000000000054ae4c  /system/lib64/libart.so (art_quick_invoke_static_stub+604)
#05 pc 00000000000dc5d0  /system/lib64/libart.so (art::ArtMethod::Invoke(art::Thread*, unsigned int*, unsigned int, art::JValue*, char const*)+264)
#06 pc 000000000029b49c  /system/lib64/libart.so (art::interpreter::ArtInterpreterToCompiledCodeBridge(art::Thread*, art::ArtMethod*, art::ShadowFrame*, unsigned short, art::JValue*)+344)
#07 pc 0000000000295a90  /system/lib64/libart.so (_ZN3art11interpreter6DoCallILb0ELb0EEEbPNS_9ArtMethodEPNS_6ThreadERNS_11ShadowFrameEPKNS_11InstructionEtPNS_6JValueE+700)
#08 pc 0000000000533f50  /system/lib64/libart.so (MterpInvokeStatic+264)
#09 pc 000000000053ca94  /system/lib64/libart.so (ExecuteMterpImpl+14612)
#10 pc 0000000000275c00  /system/lib64/libart.so (art::interpreter::Execute(art::Thread*, art::DexFile::CodeItem const*, art::ShadowFrame&, art::JValue, bool)+444)
#11 pc 0000000000525450  /system/lib64/libart.so (artQuickToInterpreterBridge+1052)
#12 pc 0000000000553d0c  /system/lib64/libart.so (art_quick_to_interpreter_bridge+92)
#13 pc 0000000000042cf8  /dev/ashmem/dalvik-jit-code-cache (deleted)

究其原因，竟然是toast过于频繁导致。