From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#31549: 25.3; bytecompile fails with eval-when-compile Date: Wed, 23 May 2018 18:08:57 +0300 Message-ID: <83po1mcsty.fsf@gnu.org> References: <8636yknjy1.fsf@gmail.com> <87sh6jgtao.fsf@gmail.com> Reply-To: Eli Zaretskii NNTP-Posting-Host: blaine.gmane.org X-Trace: blaine.gmane.org 1527088889 30893 195.159.176.226 (23 May 2018 15:21:29 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Wed, 23 May 2018 15:21:29 +0000 (UTC) Cc: ynyaaa@gmail.com, 31549@debbugs.gnu.org To: Noam Postavsky Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Wed May 23 17:21:24 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 1fLVZn-0007ly-G7 for geb-bug-gnu-emacs@m.gmane.org; Wed, 23 May 2018 17:21:19 +0200 Original-Received: from localhost ([::1]:34077 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fLVbs-0006gr-SP for geb-bug-gnu-emacs@m.gmane.org; Wed, 23 May 2018 11:23:28 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:56240) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fLVO0-0005p4-Dv for bug-gnu-emacs@gnu.org; Wed, 23 May 2018 11:09:11 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fLVNu-0003He-OS for bug-gnu-emacs@gnu.org; Wed, 23 May 2018 11:09:08 -0400 Original-Received: from debbugs.gnu.org ([208.118.235.43]:37609) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1fLVNu-0003HU-Kd for bug-gnu-emacs@gnu.org; Wed, 23 May 2018 11:09:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1fLVNu-0002Vw-Fs for bug-gnu-emacs@gnu.org; Wed, 23 May 2018 11:09:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Wed, 23 May 2018 15:09:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 31549 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 31549-submit@debbugs.gnu.org id=B31549.15270881389654 (code B ref 31549); Wed, 23 May 2018 15:09:02 +0000 Original-Received: (at 31549) by debbugs.gnu.org; 23 May 2018 15:08:58 +0000 Original-Received: from localhost ([127.0.0.1]:45506 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1fLVNp-0002Vd-Rj for submit@debbugs.gnu.org; Wed, 23 May 2018 11:08:58 -0400 Original-Received: from eggs.gnu.org ([208.118.235.92]:36883) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1fLVNo-0002VR-BD for 31549@debbugs.gnu.org; Wed, 23 May 2018 11:08:56 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fLVNi-0003BV-Hb for 31549@debbugs.gnu.org; Wed, 23 May 2018 11:08:51 -0400 Original-Received: from fencepost.gnu.org ([2001:4830:134:3::e]:42757) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fLVNi-0003BB-EY; Wed, 23 May 2018 11:08:50 -0400 Original-Received: from [176.228.60.248] (port=2137 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1fLVNh-0007Uo-SS; Wed, 23 May 2018 11:08:50 -0400 In-reply-to: <87sh6jgtao.fsf@gmail.com> (message from Noam Postavsky on Tue, 22 May 2018 19:33:03 -0400) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 208.118.235.43 X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.org gmane.emacs.bugs:146430 Archived-At: > Resent-Sender: help-debbugs@gnu.org > From: Noam Postavsky > Date: Tue, 22 May 2018 19:33:03 -0400 > Cc: 31549@debbugs.gnu.org > > > (byte-compile `(eval-when-compile (list ,@(make-list 2047 0)))) > > > > Evaluating the form above, emacs (with -Q option) reports > > Error: Memory exhausted--use C-x s then exit and restart Emacs > > in *Compile-Log* buffer. > > The returned value of the form is t. > > The error is coming from exec_byte_code: > > if (MAX_ALLOCA / word_size <= XFASTINT (maxdepth)) > memory_full (SIZE_MAX); You mean, in expansion of SAFE_ALLOCA_LISP_EXTRA? > It's more like a Lisp stack overflow than a memory exhausted situation > though, hardly calls for restarting Emacs. Perhaps the byte compiler > should refuse to compile such a large expression? How about simply signaling a special error instead of memory_full? Something like error ("Lisp stack overflow");