From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Noam Postavsky Newsgroups: gmane.emacs.bugs Subject: bug#30931: 27.0.50; Crash in "Automatic GC" Date: Thu, 29 Mar 2018 19:47:13 -0400 Message-ID: <87605eqwam.fsf@gmail.com> References: <0eb14aa5-8110-8336-5d3d-fac46ccc23f3@zoho.com> <83h8p4hok0.fsf@gnu.org> <48726674-57ed-a3bc-b4dc-e36747d30f90@zoho.com> NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Trace: blaine.gmane.org 1522367172 22637 195.159.176.226 (29 Mar 2018 23:46:12 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Thu, 29 Mar 2018 23:46:12 +0000 (UTC) User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.0.90 (gnu/linux) Cc: 30931 <30931@debbugs.gnu.org> To: =?UTF-8?Q?Micha=C5=82?= Kondraciuk Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Fri Mar 30 01:46:08 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 1f1hF9-0005m1-7e for geb-bug-gnu-emacs@m.gmane.org; Fri, 30 Mar 2018 01:46:07 +0200 Original-Received: from localhost ([::1]:41047 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1f1hHC-0007Pp-I7 for geb-bug-gnu-emacs@m.gmane.org; Thu, 29 Mar 2018 19:48:14 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:37892) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1f1hH3-0007Ox-Vx for bug-gnu-emacs@gnu.org; Thu, 29 Mar 2018 19:48:06 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1f1hH0-00029d-Tv for bug-gnu-emacs@gnu.org; Thu, 29 Mar 2018 19:48:06 -0400 Original-Received: from debbugs.gnu.org ([208.118.235.43]:51299) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1f1hH0-00029U-Pv for bug-gnu-emacs@gnu.org; Thu, 29 Mar 2018 19:48:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1f1hH0-0003qw-Ab for bug-gnu-emacs@gnu.org; Thu, 29 Mar 2018 19:48:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Noam Postavsky Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Thu, 29 Mar 2018 23:48:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 30931 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: confirmed Original-Received: via spool by 30931-submit@debbugs.gnu.org id=B30931.152236724814763 (code B ref 30931); Thu, 29 Mar 2018 23:48:02 +0000 Original-Received: (at 30931) by debbugs.gnu.org; 29 Mar 2018 23:47:28 +0000 Original-Received: from localhost ([127.0.0.1]:59196 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1f1hGR-0003q0-17 for submit@debbugs.gnu.org; Thu, 29 Mar 2018 19:47:28 -0400 Original-Received: from mail-it0-f54.google.com ([209.85.214.54]:52220) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1f1hGL-0003lL-JJ for 30931@debbugs.gnu.org; Thu, 29 Mar 2018 19:47:24 -0400 Original-Received: by mail-it0-f54.google.com with SMTP id j137-v6so10158350ita.1 for <30931@debbugs.gnu.org>; Thu, 29 Mar 2018 16:47:21 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:references:date:in-reply-to:message-id :user-agent:mime-version:content-transfer-encoding; bh=/lKle/I0qicBjrE6GKV5UVImWxTdkMPUKxwVN7Xrp84=; b=uaThJl8dXAIfxKh6OS+3nzE7qPSRpQcmrSsvvPkDGxdFKjKTc5II0zbG2qrKmFY0Tt bq3OIjGhuVjENJzj0clXJZVkYVUsXGDtv1F6dbAIi06dEVLaKECpnsFeeNaV8R27yMVa ypOmvQVe1skM4knc/lDTI8edr0pR9eNpqVCtd5xnSLZK1G1JzrZA96BuPAjSPh1lnnmm 2N8g1TVHk2NJm3S9zKr+HJvmtppIW++WhldnCmpxoxgYQvas+KGdu2257HpFp21B1Sa1 05xwiZjNZERgJOFi/F/GBc6+wrRiIzaWx2CAhzrhmxZ5TqfD/budytwZmZG3srGk3Yn+ vJpg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:references:date:in-reply-to :message-id:user-agent:mime-version:content-transfer-encoding; bh=/lKle/I0qicBjrE6GKV5UVImWxTdkMPUKxwVN7Xrp84=; b=JD7g1eiL+SZsEimjDoYpADoAY9bcSVlA1u57wWwCtRypyfkYKz4hazxXUJJLFt6AnP ohvhnm8Nkmn1jB26Wf+IZ4Nw2xwNXJKb2uHMleg8Ye9zeDZxfcpNud5wPL4VtR5oS8rt 0yBRabtE7y1bMvqUtGsIycHfMQAo8b9oZMZcqTPfmXmCdkx161kXHMbedZvfoL/RPOeg yTurq2KAHchtgIml/FAGayt9KU03SMf0WcNFEHYRKX+pTDTLpr5Wdr3codnHC75uicMx 3dfjLLtFkCxlZb4esp+ufyT3gJuI1VHwlsei19NhEI9Yk+nRKyKqvyUCs1F4CzdJDfKb 5xzQ== X-Gm-Message-State: AElRT7EVIDeFqrxzqsDjidFl7qy77sFHGkEC+IICZZqcX+iXjUEGztRf 5hhkhGa/8QsiFqz0SPwssjOrwA== X-Google-Smtp-Source: AIpwx4+VMv2LaDHI4WDRXB5nHzYmdUMR6fE/uEYJxePplA4CMHf70+WsmMu6enp8NGK95thxUpzjDg== X-Received: by 2002:a24:5e83:: with SMTP id h125-v6mr984164itb.79.1522367235786; Thu, 29 Mar 2018 16:47:15 -0700 (PDT) Original-Received: from zebian (cbl-45-2-119-34.yyz.frontiernetworks.ca. [45.2.119.34]) by smtp.googlemail.com with ESMTPSA id 193-v6sm1773228itv.7.2018.03.29.16.47.14 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Thu, 29 Mar 2018 16:47:14 -0700 (PDT) In-Reply-To: <48726674-57ed-a3bc-b4dc-e36747d30f90@zoho.com> ("=?UTF-8?Q?Micha=C5=82?= Kondraciuk"'s message of "Wed, 28 Mar 2018 23:02:40 +0200") 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:144709 Archived-At: Micha=C5=82 Kondraciuk writes: > I don't know if it helps, but I was able to reproduce a crash in the > same place (mark_object()) with bare Emacs, however only in 27.0.50. This is very helpful, thank you. > I have no idea what this code does at all. The way I wrote this is I > kept rerunning the previous recipe but each time I commented out some > part of yasnippet.el library. If Emacs crashed, I kept the change, > otherwise I uncommented those parts and focused on another region, and > so on until I was left with very simple functions. I was going to do the same thing, just no time to get to it this week. > I hope someone can confirm that it crashes. I can confirm it crashes, and much faster too, just two calls of the crash function are enough: (progn (defun on-overlay-modification (&rest args) (push nil buffer-undo-list)) (defun crash () (save-restriction (narrow-to-region 1 1) (let (end) (insert " 123aaa") (narrow-to-region 2 3) (setq end (set-marker (make-marker) 3)) (save-restriction (widen) (lisp-indent-line)) (garbage-collect) (overlay-put (make-overlay end (1+ end)) 'modification-hooks '(on-overlay-modification))))) (with-current-buffer "*scratch*" (erase-buffer) (let ((buffer-undo-list t)) (crash) (erase-buffer) (crash))))