Mity CPU Platforms » MityDSP-L138 (ARM9 Based Platforms)

I have a strange problem with starting up some software on bootup. I have followed the instructions in this link:
[[http://support.criticallink.com/redmine/projects/arm9-platforms/wiki/ARM_Software_FAQs]]

with a line that looks like: "ARMApp DSPApp.out > logfile.txt" in my script.

Here is the startup code in ARMApp:

int main(int argc, char* argv[])
{
    struct timespec start, stop;
    float gainDB;

    initDone = false;
    gainDB = STARTING_GAIN;
    setvbuf(stdout, NULL, _IONBF, 0);

    tcDspApp*         lpDspApp = NULL;
    char            startMessage[] = "Hello DSP";
    char            loadMessage[] = "FPGA_loaded";

    if (argc < 2)
    {
        printf("usage: DopplerARM dsp_image.out\n");
        return -1;
    }
    lpDspApp = new tcDspApp();
#ifdef MYDEBUG
    printf("Loading file %s\n", argv[1]);
#endif
    lpDspApp->LoadApp(argv[1]);

#ifdef MYDEBUG
    printf("Starting application.\n");
#endif

If the debug comments are enabled, on a successful startup we see:

Loading file DSPApp.out
PROC Load successful
Starting application.

This happens sometimes, and the application runs with no problems. But often the only thing that is seen in the output is:

Loading file DSPApp.out
PROC Load successful

and the app does not continue to run - I don't really know what it is doing because if I kill the process I don't get the usual dump of information that occurs when this happens and if I do a "poweroff" I get messages saying that user file system can't be unmounted because it is busy. It's like after the ARM has loaded the DSP code (successfully apparently) something happens to it during that load, because it does not get to the next printf after the loadApp(), but the code is still running somehow.

If I try to duplicate the situation while connected to the DSP through the emulator, it cannot connect to the DSP - seems to indicate that it is in reset.

Obviously this is a pretty serious situation - the app should start every time the system is powered up, but only starts up every two or three power-ups.
What could be causing this, and how can I fix it?