From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.ciao.gmane.io!not-for-mail From: Pieter van Oostrum Newsgroups: gmane.emacs.bugs Subject: bug#39962: 27.0.90; Crash in Emacs 27.0.90 Date: Mon, 16 Mar 2020 11:44:40 +0100 Message-ID: References: <24162.58107.725366.668639@cochabamba.vanoostrum.org> <83y2s48yn7.fsf@gnu.org> <83zhck6obg.fsf@gnu.org> <83r1xv73ze.fsf@gnu.org> <83imj5bdct.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="69662"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.0.90 (darwin) Cc: 39962@debbugs.gnu.org, eggert@cs.ucla.edu, pipcet@gmail.com To: Eli Zaretskii Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Mon Mar 16 12:51:35 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 1jDoHN-000Hwn-50 for geb-bug-gnu-emacs@m.gmane-mx.org; 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Mon, 16 Mar 2020 11:44:42 +0100 (CET) X-Barracuda-Envelope-From: pieter-l@vanoostrum.org X-Barracuda-Effective-Source-IP: server24.hosting2go.nl[185.135.241.24] X-Barracuda-Apparent-Source-IP: 185.135.241.24 Original-Received: (qmail 14967 invoked from network); 16 Mar 2020 10:44:42 -0000 Original-Received: from static-145.132.212.31.ip.telfort.nl (HELO cochabamba.vanoostrum.org) (145.132.212.31) by server24.hosting2go.nl with SMTP; 16 Mar 2020 10:44:42 -0000 Received-SPF: unknown (server24.hosting2go.nl: domain at 83.137.194.9 does not designate permitted sender hosts) Original-Received: from cochabamba.vanoostrum.org (localhost [IPv6:::1]) by cochabamba.vanoostrum.org (Postfix) with ESMTP id 62C85AB9D45F; Mon, 16 Mar 2020 11:44:41 +0100 (CET) X-ASG-Orig-Subj: Re: bug#39962: 27.0.90; Crash in Emacs 27.0.90 In-Reply-To: (Pieter van Oostrum's message of "Mon, 16 Mar 2020 00:26:31 +0100") X-Barracuda-Connect: server24.hosting2go.nl[185.135.241.24] X-Barracuda-Start-Time: 1584355482 X-Barracuda-Encrypted: ECDHE-RSA-AES256-GCM-SHA384 X-Barracuda-URL: https://83.137.198.201:443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at hosting2go.nl X-Barracuda-Scan-Msg-Size: 1150 X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using global scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=4.5 tests=BSF_SC0_MISMATCH_TO A-X-Hosting2GO-Smarthost: Clean X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.80632 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 BSF_SC0_MISMATCH_TO Envelope rcpt doesn't match header 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: 209.51.188.43 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-mx.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.io gmane.emacs.bugs:177412 Archived-At: Pieter van Oostrum writes: >>> (gdb) p $rsp >>> $1 = (void *) 0x7ffeef9c9270 >> >> What is the value of stack_bottom? >> > (gdb) p &stack_bottom_variable > $3 = (void **) 0x7ffeefbff628 > > (gdb) p current_thread->m_stack_bottom > $4 = 0x7ffeefbff628 "" > >> And how many frames do you have in that backtrace, if you show all of >> it? > > 11567 > #11567 0x00000001001c281e in main (argc=1, argv=0x7ffeefbff660) at emacs.c:2054 (gdb) f 3 #3 0x00000001002b56e7 in mark_overlay (ptr=0x12c489030) at alloc.c:6213 6213 set_vectorlike_marked (&XMARKER (ptr->end)->header); (gdb) p *ptr $9 = { header = { size = -4611686018360274941 }, start = XIL(0x12c488fc5), end = XIL(0), plist = XIL(0x11dc4e263), next = 0x12c488f30 } So the end of the overlay = 0, and the size is negative. Corruption. Maybe a stray assignment, or error in freeing memory. This build doesn't have the 0001-Don-t-collect-reachable-killed-buffers-during-GC.patch applied. I guess that patch might help. -- Pieter van Oostrum www: http://pieter.vanoostrum.org/ PGP key: [8DAE142BE17999C4]