RTOS/OMAP-L138: NDK_EWOULDBLOCK error when I receive data more than 1456B

Part Number:OMAP-L138

Tool/software: TI-RTOS

Hi,

I have a problem with the NDK_recv function. When I receive less then 1456B of data the program works correctly but when I want  to receive more then 1456B then NDK_recv returns -1 and I see am error NDK_EWOULDBLOCK..

static void NetworkOpen()
{
    hFtp =   DaemonNew( SOCK_STREAM,     0, 21,      dtask_ftp,          OS_TASKPRINORM,  65536, 0, 3);
}

int dtask_ftp(SOCKET s, uint32_t unused){

    struct timeval timeout;

    int ret;

    char buffer[BSIZE];
    int bytes_read;

    Command cmd;// = malloc(sizeof(Command));
    State state;

    /* Configure our socket timeout to be 5 seconds */
    timeout.tv_sec  = 10;
    timeout.tv_usec = 0;

    setsockopt( s, SOL_SOCKET, SO_SNDTIMEO, &timeout, sizeof(timeout) );

    timeout.tv_sec  = 40;   //Ustawienie na 40 sek, gdyz niektore menadzery do FTP wysylaja co okolo 30s zapytanie o nowe dane,
                            //jak bedzie rzadziej niz 40s, wowczas polaczenie bedzie po prostu ponawiane
    timeout.tv_usec = 0;
    setsockopt(s, SOL_SOCKET, SO_RCVTIMEO, &timeout, sizeof(timeout) );

    //setsockopt(s, SOL_SOCKET, SO_DEBUG, NULL, 0 );

/** Handle STOR command. TODO: check permissions. */
void ftp_stor(Command *cmd, State *state){

SOCKET connection = NULL;
FRESULT fr;
FIL file;
char buf[BUF_SIZE];
unsigned int numWrite;
int numRecv;

int recv_total = 0;
int fileOpenFlag = 0;

if(state->logged_in){

/* Passive mode */
if(state->mode == SERVER){

fr = f_open(&file, cmd->arg, FA_CREATE_ALWAYS | FA_WRITE); //otwarcie pliku w trybie do zapisu,
//jezeli isnieje to zostanie nadpisany,
//jezeli nie, to zostanie utworzony

if(fr == FR_OK){

fileOpenFlag = 1;
connection = accept_connection(state->sock_pasv);
if(fdClose(state->sock_pasv)){
PRINTF_DEBUG("%s %s():%d, fdClose(), nieudana proba zamkniecia socketu\r\n", __FILE__, __FUNCTION__, __LINE__);
}

state->message = "125 Data connection already open; transfer starting.\n";
write_state(state);

recv_total = 0;

int i = 0;

while(1){

//PRINTF_DEBUG("czekanie na dane, i = %d\r\n", i);
numRecv = recv(connection, buf, BUF_SIZE, MSG_WAITALL ); //HERE I HAVE A PROBLEM

.........................

I'm using the latest SDK

Where should I look for a problem?

Regards, Patryk