Unknown error with gdb [tcsetpgrp failed in terminal_inferior: Inappropriate ioctl for device]

["xchen" <xchen at sunrisetelecom dot com dot cn>]

Hi 
 
I meet this error when I use gdb run on 860 board
 
compile gdb 
CC=ppc_8xx-gcc AR=ppc_8xx-ar RANLIB=ppc_8xx-ranlib LD=ppc_8xx-ld ./configure
--build=i686-linux --host=ppc-linux --prefix=/us
r --sysconfdir=/etc |tee configure.out
make 2>&1 | tee make.out
make install 2>&1 | tee -a make.out
 
belowed is the snapshot for gdb
 
# cat hellogdb.c
#include<stdio.h>
 
int main()
{
        int i=1;
        int m=2;
        printf("hello gdb\n");
        return 1;
}
# ./gdb hellogdb
GNU gdb 6.6
Copyright (C) 2006 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain
conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for details.
This GDB was configured as "ppc-linux"...
Using host libthread_db library "/lib/libthread_db.so.1".
(gdb) b main
Breakpoint 1 at 0x100003ec: file hellogdb.c, line 5.
(gdb) run
Starting program: /mnt/cf/system/hellogdb 
[tcsetpgrp failed in terminal_inferior: Inappropriate ioctl for device]
[tcsetpgrp failed in terminal_inferior: Inappropriate ioctl for device]
[tcsetpgrp failed in terminal_inferior: Inappropriate ioctl for device]
[tcsetpgrp failed in terminal_inferior: Inappropriate ioctl for device]
 
Breakpoint 1, main () at hellogdb.c:5
5               int i=1;
(gdb) step
[tcsetpgrp failed in terminal_inferior: Inappropriate ioctl for device]
6               int m=2;
 
Does anyone know the reason?
 
Thx
 
Xi