(gdb) run
Starting program: /home/viriato/Área de Trabalho/sistemas-operacionais/b

Program received signal SIGSEGV, Segmentation fault.
0x0000000000400c62 in buffer_remove_tam (buf=0x7fffffffdd50) at buffer.c:177
177     memcpy((void*)aux, buf->proxInf, sizeof(int));
(gdb)