From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Michael Welsh Duggan Newsgroups: gmane.emacs.bugs Subject: bug#47244: 28.0.50; SIGSEGV in long-runnning Emacs Date: Thu, 01 Apr 2021 09:20:48 -0400 Message-ID: <878s629m4v.fsf@md5i.com> References: <87im5ofp3z.fsf@md5i.com> <83r1jykmt0.fsf@gnu.org> <2d0dbdc8-3678-cd21-234a-9c63bb004629@gmx.at> <834kgrifrt.fsf@gnu.org> <106ce987-1a45-bbdf-3897-445baa99a476@gmx.at> <1f74fdb1-0171-3560-8771-32490323d8be@gmx.at> <83im56h2i1.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="6909"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) Cc: mwd@md5i.com, schwab@linux-m68k.org, 47244@debbugs.gnu.org, mwd@cert.org To: Eli Zaretskii Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Thu Apr 01 15:23:28 2021 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 1lRxIF-0001hs-8D for geb-bug-gnu-emacs@m.gmane-mx.org; Thu, 01 Apr 2021 15:23:27 +0200 Original-Received: from localhost ([::1]:38754 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lRxIE-0005rt-5p for geb-bug-gnu-emacs@m.gmane-mx.org; Thu, 01 Apr 2021 09:23:26 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:38344) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lRxFu-0002u0-AD for bug-gnu-emacs@gnu.org; Thu, 01 Apr 2021 09:21:02 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:45094) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1lRxFu-00009W-0j for bug-gnu-emacs@gnu.org; Thu, 01 Apr 2021 09:21:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1lRxFt-0001e9-T1 for bug-gnu-emacs@gnu.org; Thu, 01 Apr 2021 09:21:01 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Michael Welsh Duggan Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Thu, 01 Apr 2021 13:21:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 47244 X-GNU-PR-Package: emacs Original-Received: via spool by 47244-submit@debbugs.gnu.org id=B47244.16172832606315 (code B ref 47244); Thu, 01 Apr 2021 13:21:01 +0000 Original-Received: (at 47244) by debbugs.gnu.org; 1 Apr 2021 13:21:00 +0000 Original-Received: from localhost ([127.0.0.1]:56640 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1lRxFs-0001dm-46 for submit@debbugs.gnu.org; Thu, 01 Apr 2021 09:21:00 -0400 Original-Received: from md5i.com ([75.151.244.229]:59588) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1lRxFp-0001dW-Ga for 47244@debbugs.gnu.org; Thu, 01 Apr 2021 09:20:58 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=md5i.com; s=dkim; h=Content-Type:MIME-Version:Message-ID:In-Reply-To:Date:References: Subject:Cc:To:From:Sender:Reply-To:Content-Transfer-Encoding:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=Ot9XlkTNQTBS9TCfDiRjLUi7FacmJSdlxddoDzSCKyc=; b=hL1IHutF6Iz482HO3z7/GI2xls NhmdjazogAS/GjtDAsDuBqGJql8YOpWEpLpy+4hAB1RakCnIHbvOphsgFTUPs/Ls50js1b3UrnVmU VYwiNLGFfAjzS+kCyxEcCsr20; Original-Received: from abode.md5i.com ([192.168.177.1] helo=miko) by md5i.com with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94) (envelope-from ) id 1lRxFh-003gkO-KM; Thu, 01 Apr 2021 09:20:49 -0400 In-Reply-To: <83im56h2i1.fsf@gnu.org> (Eli Zaretskii's message of "Thu, 01 Apr 2021 10:45:26 +0300") 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:203422 Archived-At: Eli Zaretskii writes: >> Cc: Eli Zaretskii , "mwd@md5i.com" , >> "schwab@linux-m68k.org" , >> "47244@debbugs.gnu.org" <47244@debbugs.gnu.org> >> From: martin rudalics >> Date: Thu, 1 Apr 2021 09:14:06 +0200 >> >> Otherwise I'm clueless. Maybe Eli has an idea. > > I would like first to understand what prevents Emacs from starting. > Does it crash at that point, i.e. inside the call to > BUFFER_CHECK_INDIRECTION? if so, can Michael please try to identify > what is the immediate cause of the crash? And I find I can't ansswer the question. I rebuilt to give that information, and this time everything is working just fine with --enable-checking and the most recent debugging patch. No idea what happened yesterday. I will say that what happened yesterday was not a crash. It was a breakpoint on the error ("Selecting deleted buffer"); libe that was added to set_buffer_internal_2. I think maybe I overused that gdb session and it got confused. I'm running now with the latest patch and we'll see if the problem triggers today. -- Michael Welsh Duggan (md5i@md5i.com)