android audiorecord failing thinks there are multiple instances

Question

Using the following code I am opening audiorecord, reading, closing and reopening essentially forever (as audiorecord is limited to reading 2^32 shorts of data it seems and I want it to run and processing forever)

  loop the following {

    AudioRecord recorder = null;
    int N = AudioRecord.getMinBufferSize(44100,AudioFormat.CHANNEL_IN_MONO,AudioFormat.ENCODING_PCM_16BIT);
    recorder = new AudioRecord(AudioSource.MIC,44100,
                                                     AudioFormat.CHANNEL_IN_MONO,
                                                     AudioFormat.ENCODING_PCM_16BIT,
                                                     N*10);
    recorder.startRecording();


    //read and do some processing

    recorder.stop();
    recorder.release();

  }  

This works fine about 1200 times until I get the error

E/AudioHardwareMSM76XXA( 122): More than one instance of recording not supported

which is what you would get if you tried to open an already open recording instance.

Is it possible that the code continues with recorder.release() in the background and occasionally it hasn't finished before opening the new instance?

Thanks

R