- /* It is more difficult to avoid calling this function than to
- call it and ignore errors. */
- /*
- * THIS CANNOT WORK! "&st" is a kernel address, and "do_sigaltstack()"
- * takes a user address (and verifies that it is a user address). End
- * result: it does exactly _nothing_.
- */
- do_sigaltstack(&st, NULL, regs->esp);