From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Keith David Bershatsky Newsgroups: gmane.emacs.bugs Subject: bug#27571: C stack overflow from `prin1' on deeply nested lisp object. Date: Sun, 28 Jan 2018 15:23:47 -0800 Message-ID: References: NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII X-Trace: blaine.gmane.org 1517183746 31234 195.159.176.226 (28 Jan 2018 23:55:46 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Sun, 28 Jan 2018 23:55:46 +0000 (UTC) Cc: 27571@debbugs.gnu.org To: Noam Postavsky Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Mon Jan 29 00:55:42 2018 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1efwnR-0007ZJ-Lk for geb-bug-gnu-emacs@m.gmane.org; Mon, 29 Jan 2018 00:55:38 +0100 Original-Received: from localhost ([::1]:46855 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1efwpS-0002NE-Fm for geb-bug-gnu-emacs@m.gmane.org; Sun, 28 Jan 2018 18:57:42 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:54096) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1efwIw-0000Oy-TL for bug-gnu-emacs@gnu.org; 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if (getrlimit (RLIMIT_STACK, &rlim) == 0 && 0 <= rlim.rlim_cur && rlim.rlim_cur <= LONG_MAX) { fprintf (stderr, "rlim.rlim_cur: %d\n", rlim.rlim_cur); First, I did _not_ manually set the terminal with `ulimit -S -s unlimited` -- i.e., just plain old terminal, with nothing special. The STDERR message when I open Emacs is: getrlimit: 0 rlim.rlim_cur: 8388608 Second, I _did_ manually set the terminal with `ulimit -S -s unlimited`. The STDERR message when I open Emacs is: getrlimit: 0 rlim.rlim_cur: 67104768 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; DATE: [01-28-2018 13:45:23] <28 Jan 2018 16:45:23 -0500> FROM: Noam Postavsky > > Keith David Bershatsky writes: > > * * * > > Can you check with gdb what the values of rlim are in this case? Around > here, after the getrlimit call: > > if (getrlimit (RLIMIT_STACK, &rlim) == 0 > && 0 <= rlim.rlim_cur && rlim.rlim_cur <= LONG_MAX) > > On GNU/Linux, rlim.rlim_cur is 0xffffffffffffffff (or -1 if interpreted > as a signed integer), so that if condition evaluates to false.