OpenAFS on FreeBSD: AFS fd never ready for reading

selecton.c

#include <sys/select.h>
#include <fcntl.h>

/* Accepts exactly one argument: the name of a file which we will open(2) and
 * select(2) on for reading. */
int main(int argc, char **argv){
    int fd;
    fd_set fs;
    int sel;

    if(argc != 2)
        return 1;

    fd = open(argv[1], O_RDONLY);

    if(fd == -1)
        return 2;

    FD_ZERO(&fs);
    FD_SET(fd, &fs);
    select(fd+1, &fs, 0, 0, 0);

    return 0;
}