From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.ciao.gmane.io!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.bugs Subject: bug#41321: 27.0.91; Emacs aborts due to invalid pseudovector objects Date: Sat, 23 May 2020 19:26:09 -0400 Message-ID: References: <83zha8cgpi.fsf@gnu.org> <83r1vibmyj.fsf@gnu.org> <83imgublku.fsf@gnu.org> <831rncjuwf.fsf@gnu.org> <83tv082mm1.fsf@gnu.org> <83lflk2l07.fsf@gnu.org> <83blmg2ggi.fsf@gnu.org> <834ks73i8n.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="ciao.gmane.io:159.69.161.202"; logging-data="78807"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) Cc: 41321@debbugs.gnu.org, Andrea Corallo To: Pip Cet Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Sun May 24 01:27:09 2020 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1jcdXp-000KP2-6f for geb-bug-gnu-emacs@m.gmane-mx.org; Sun, 24 May 2020 01:27:09 +0200 Original-Received: from localhost ([::1]:43840 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jcdXo-0001P5-9H for geb-bug-gnu-emacs@m.gmane-mx.org; Sat, 23 May 2020 19:27:08 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:45698) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jcdXi-0001Ox-60 for bug-gnu-emacs@gnu.org; Sat, 23 May 2020 19:27:02 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:52725) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1jcdXh-0001R4-TG for bug-gnu-emacs@gnu.org; Sat, 23 May 2020 19:27:01 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1jcdXh-0000PT-Pm for bug-gnu-emacs@gnu.org; Sat, 23 May 2020 19:27:01 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Stefan Monnier Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sat, 23 May 2020 23:27:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 41321 X-GNU-PR-Package: emacs Original-Received: via spool by 41321-submit@debbugs.gnu.org id=B41321.15902763811525 (code B ref 41321); Sat, 23 May 2020 23:27:01 +0000 Original-Received: (at 41321) by debbugs.gnu.org; 23 May 2020 23:26:21 +0000 Original-Received: from localhost ([127.0.0.1]:36038 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1jcdX2-0000OX-MU for submit@debbugs.gnu.org; Sat, 23 May 2020 19:26:20 -0400 Original-Received: from mailscanner.iro.umontreal.ca ([132.204.25.50]:31785) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1jcdX0-0000OK-Ho for 41321@debbugs.gnu.org; Sat, 23 May 2020 19:26:19 -0400 Original-Received: from pmg2.iro.umontreal.ca (localhost.localdomain [127.0.0.1]) by pmg2.iro.umontreal.ca (Proxmox) with ESMTP id ECD7080ACA; Sat, 23 May 2020 19:26:12 -0400 (EDT) Original-Received: from mail01.iro.umontreal.ca (unknown [172.31.2.1]) by pmg2.iro.umontreal.ca (Proxmox) with ESMTP id 4EB73806C9; Sat, 23 May 2020 19:26:11 -0400 (EDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=iro.umontreal.ca; s=mail; t=1590276371; bh=qEQ6paaPSLqQuT65VhRFvN0kArzeK79CUfJj6bGGa5k=; h=From:To:Cc:Subject:References:Date:In-Reply-To:From; b=fceitrq0Y92h9SY/GCVCVePRs1d2FtcBTmocgTapoMBdqlzBtEj7BX+bXz6KIY2rM rPZwk3PFffrWvcdByJaB9hTKB6XgMn6EkXoJJYHn/FxC6LJDFhWGeCTRljqd/mnXKh uvjY4GEEAydg31HpqtaZSj385cZ2DFphp7efXTaZwkZkFvd6Udzt0I2yOAIm2hrUWz ZqO3qAef2aXqEjOMFmew1OHjcOGzOnQlDsIG7IZ73paaY/T3+pVgZHIm4lF38lUcL/ V0MSyZKaAlU/ci875ZYpVCbBLzRi1Ydk3+LutazQJA3i6SaHNXuFXppZdxQ8XqugD+ mgLTIC0mZ82ow== Original-Received: from alfajor (unknown [216.154.27.250]) by mail01.iro.umontreal.ca (Postfix) with ESMTPSA id BC41A1202C1; Sat, 23 May 2020 19:26:10 -0400 (EDT) In-Reply-To: (Pip Cet's message of "Sat, 23 May 2020 22:41:41 +0000") X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list 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-mx.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.io gmane.emacs.bugs:180867 Archived-At: >> This shouldn't be a problem: wide-int builds use MSB tagging, so all >> Lisp_Objects which contain a pointer have their lowest 32bits exactly >> identical to that pointer (and the higher 32bits just contain the tag). > As I said, I don't believe that's true for symbols. Qnil is always > binary 0, so we offset all symbols by the offset of lispsym. Oh, right, good point: I had completely forgotten about that "detail". We should probably adjust our conservative stack scanning accordingly. Stefan