/*
 * poll_1.c
 *
 * This code used to panic the kernel because of a filter bug.
 */
#include <fcntl.h>
#include <stdio.h>
#include <poll.h>

int main()
{
        struct pollfd fds[1];

        int p = open("/dev/tty", O_RDWR);
        
        printf("tty: %d\n", p);

        fds[0].fd = p;
        fds[0].events = POLLIN|POLLPRI;
        fds[0].revents = 0;

        poll(fds, 1, -1);

        printf("polled\n");
}