fatal error KERNEL.146640 while using DLL

[dead bug]

Hello everyone,

I'm having a problem using a DLL with self written DLLmain. Maybe someone can tell me what is wrong.

The DLL is

// ########## DLL ################################
#include <cvirte.h>
#include <ansi_c.h>

/*
int __stdcall DllMain (HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
{
    switch (fdwReason)
    {
        case DLL_PROCESS_ATTACH:
            if (InitCVIRTE (hinstDLL, 0, 0) == 0)
                return 0;      // out of memory
            printf("a process attached\n");
            break;
        case DLL_PROCESS_DETACH:
            printf("a process detached\n");               
            CloseCVIRTE ();
            break;
        case DLL_THREAD_ATTACH:
            printf("a thread attached\n");
            break;
        case DLL_THREAD_DETACH:
            printf("a thread attached\n");
            break;
    }
   
    return 1;
}
      
int __stdcall DllEntryPoint (HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
{
    // Included for compatibility with Borland

    return DllMain (hinstDLL, fdwReason, lpvReserved);
}                 */

int DummyFunction(void) {
    printf("InterfaceDummy: DummyFunction called\n");
    return 0;
}
//##### end DLL ############################

and the program using the DLL is

#include <windows.h>
#include <cvinetv.h>
#include <ansi_c.h>
#include <cvirte.h>
#include "InterfaceDummy.h"

extern int CVIFUNC RTIsShuttingDown (void);


void CVICALLBACK SubscriberCallback(void * handle, CNVData data, void * callbackData) {
   
    unsigned long   nDims;
    CNVDataType     type;
    static int counter=0;
   
    printf("trigger: callback ");

      if (data == 0)
        return;
   
    CNVGetDataType (data, &type, &nDims);
 
      // Abort / Start case
      if (type == CNVBool && nDims == 0)  {
        char value;
        CNVGetScalarDataValue(data,CNVBool,&value);
        if (value) {
            DummyFunction();
            counter++;
        }
  }
  printf("%d\n",counter);

 
  CNVDisposeData(data);
 
}

void CVIFUNC_C RTmain (void)
{
    CNVSubscriber hSubscriber;
    int error;
   
    if (InitCVIRTE (0, 0, 0) == 0)
        return;    /* out of memory */
   
    Sleep(20000);
   
    printf("trigger: program started\n");
    DummyFunction();

    if( error = CNVCreateSubscriber("\\\\134.245.69.241\\trigger\\Trigger",SubscriberCallback,0,0,10000,0,&hSubscriber)){
        printf("trigger: error occured while creating subscriber\n");
        return;
    }
    else
        printf("trigger: subscriber created\n");

    while (!RTIsShuttingDown () && error==0)
    {
        Sleep (500);
    }
   
    if(error = CNVDispose(hSubscriber)) {
        printf("trigger: error: ");
        printf(CNVGetErrorDescription(error));
    }

    printf("trigger: program exited\n");
    CloseCVIRTE ();
}

//##### end program ############################

As long as DLLmain() is commented out everything is fine. The program runs just as expected. But when I compile the DLL with the DLLmain function and start the program, the system crashes with the output:

Fatal error KERNEL.146640: Thread stack overflow. Thread ID=95
Thread stack range =0x37F9000 - 0x37F9FFF, size 4096
current ESP = 0x37F8C58

I'm using Labwindows/CVI 8.5.0. The program runs on a NI PXI-8196 RT Controller.