gdb error, help me!!!!

zhangxudong

When I use gdb in suse 8.2 as follow:
fff.c
int main( int argc, int argv )
{
printf( "hello world\n" );
}
>gcc -g -o fff fff.c
>gdb fff
(gdb) run
Starting program: /home/zxd/develop/newcanvas/fff
Warning:
Cannot insert breakpoint -2.
Error accessing memory address 0x4000bb50: 输入/输出错误.
The same program may be running in another process.
Why?