double * dt_n_pc_x[NUM_CELL];
  initialize_memory(dt_n_pc_x,NUM_CELL,CELL_POINT);
  double * dt_n_pc_y[NUM_CELL];
  initialize_memory(dt_n_pc_y,NUM_CELL,CELL_POINT);
  double * posi_l_pc[NUM_CELL];
  initialize_memory(posi_l_pc,NUM_CELL,CELL_POINT);
printf("duan1\n");
  double * posi_n_pc_x[NUM_CELL];
printf("duan2\n");
  initialize_memory(posi_n_pc_x,NUM_CELL,CELL_POINT);
printf("duan3\n");
  double * posi_n_pc_y[NUM_CELL];
printf("duan4\n");
  initialize_memory(posi_n_pc_y,NUM_CELL,CELL_POINT);
printf("duan5\n");
  double * dt_posi_l_n_pc_x[NUM_CELL];
  initialize_memory(dt_posi_l_n_pc_x,NUM_CELL,CELL_POINT);
  double * dt_posi_l_n_pc_y[NUM_CELL];
  initialize_memory(dt_posi_l_n_pc_y,NUM_CELL,CELL_POINT);

void initialize_memory(double * p[],int N,int * CELL_POINT[])
{
int k,i;
for(k = 0; k < N; ++k)
        {
            p[k] = (double *)malloc(CELL_POINT[k][0] * sizeof(double));
            if(p[k] == NULL)
                {
                    for(i = 0; i < k; ++i)
                        {
                            free(p[i]);
                            p[i] = NULL;
                        }
                    printf("Initialize_memory fail.\n");
                    exit(5);
                }
        }
}

求问大虾们为什么当NUM_CELL变大后，程序在断点3到4之间（也就是double * posi_n_pc_y[NUM_CELL];这句）会出现段错误。
（编译环境ubuntu14 gcc）