android - pthread_create 失败：无法分配 1069056 字节的映射空间：内存不足

Question

我最近遇到了一个 OutOfMemoryError 让我很困惑的问题。当发生 OutOfMemoryError 时，进程 Java 堆仍有大量空闲内存，系统也仍有大量空闲内存。我做了很多工作试图弄清楚，但现在，我仍然不知道出了什么问题。

导致OutOfMemoryError 问题的原因有4 个：
1. 进程FD 号超出限制。
2.进程线程数超出限制。
3.进程Java堆满。
4. 32位系统进程虚拟内存最大为3G。

我认为最可能的原因是4，所以我在运行应用程序时检测进程的虚拟内存，发现OutOfMemoryError发生时虚拟内存接近3 * 1024 * 1024字节。但我不知道为什么，谁能给我一些指导？非常感谢！

这是logcat信息：

04-12 16:15:52.043  9329  9370 W libc    : pthread_create failed: couldn't allocate 1069056-bytes mapped space: Out of memory
04-12 16:15:52.065  9329  9370 W zygote  : Throwing OutOfMemoryError "pthread_create (1040KB stack) failed: Try again"
04-12 16:15:52.106  9329  9370 E AndroidRuntime: FATAL EXCEPTION:    EsrEngine
04-12 16:15:52.106  9329  9370 E AndroidRuntime: Process: com.translation.service:offline, PID: 9329
04-12 16:15:52.106  9329  9370 E AndroidRuntime: java.lang.OutOfMemoryError: pthread_create (1040KB stack) failed: Try again
04-12 16:15:52.106  9329  9370 E AndroidRuntime:    at java.lang.Thread.nativeCreate(Native Method)
04-12 16:15:52.106  9329  9370 E AndroidRuntime:    at java.lang.Thread.start(Thread.java:733)
04-12 16:15:52.106  9329  9370 E AndroidRuntime:    at com.offline.EsrEngine.notifyWriteTask(EsrEngine.java:278)
04-12 16:15:52.106  9329  9370 E AndroidRuntime:    at com.offline.EsrEngine.access$600(EsrEngine.java:35)
04-12 16:15:52.106  9329  9370 E AndroidRuntime:    at com.offline.EsrEngine$3.run(EsrEngine.java:210)
04-12 16:15:52.106  9329  9370 E AndroidRuntime:    at android.os.Handler.handleCallback(Handler.java:790)
04-12 16:15:52.106  9329  9370 E AndroidRuntime:    at android.os.Handler.dispatchMessage(Handler.java:99)
04-12 16:15:52.106  9329  9370 E AndroidRuntime:    at android.os.Looper.loop(Looper.java:164)
04-12 16:15:52.106  9329  9370 E AndroidRuntime:    at android.os.HandlerThread.run(HandlerThread.java:65)

这是 notifyWriteTask() 方法的代码。

private void notifyWriteTask() {
        isAllowWrite = true;
        final BlockingQueue<byte[]> buffer = databuffer;
        writeThread = new Thread(new Runnable() {
            @Override
            public void run() {
                EsrLogger.d(TAG, "WriteTask lang=" + currentLang
                        + " Run>>>>>>>" + Thread.currentThread().getId()
                        + " dataBuffer=" + buffer.size()
                        + " isAllow=" + isAllowWrite);
                while (isAllowWrite) {
                    byte[] audio;
                    try {
                        audio = buffer.poll(1500, TimeUnit.MILLISECONDS);
                    } catch (InterruptedException e) {
                        break;
                    }
                    if (!isAllowWrite) {
                        break;
                    }
                    if (audio == null) {
                        EsrLogger.w(TAG, "WriteTask No Audio over 1500ms =====> Exit");
                        break;
                    }
                    writeAudio(audio, audio.length);

                    EsrResult result = getEsrResult();
                    if (result != null && result.isFinish()) {
                        databuffer.clear();
                        EsrLogger.d(TAG, "WriteTask has finish result=" + result);
                        writeAudioFlag = EsrInstBase.ESR_AUDIO_END;
                        break;
                    }
                }
                stopEsr();
                buffer.clear();
                EsrLogger.d(TAG, "WriteTask End<<<<<<<<" + writeThread.getId());
            }
        }, currentLang);
        writeThread.start();
        EsrLogger.d(TAG, "WriteTask Start>>>>>>" + writeThread.getId());
    }

标签： androidandroid-ndkout-of-memory