RL-ARM FileSystem Problem opening File

Hallo,

i'm using RL-ARM FileSytem + RealView.
Initiallly calling the function ffree("F:") returns 65504 Bytes free.

Normally all works fine, but after trying to open a Non existing File for 9 times, the function ffree("F:") returns 0 Bytes free. At this point, also the fformat function does not work. After reseting the system, all works again.

Example: Calling the DummyOpen() + ffree("F:") 9 times
works ok, after the free size gives 0:

bool DummyOpen(char *fName) {
FILE *fin;

        fin = fopen (fName, "r");                                                     // 33 uS
        if (fin == NULL)
                return false;                   // File not found!

        fclose (fin);
        return true;
}

thank you for any information.

Eugen