From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#47244: 28.0.50; SIGSEGV in long-runnning Emacs Date: Thu, 25 Mar 2021 08:25:19 +0200 Message-ID: <83eeg3kawg.fsf@gnu.org> References: <87im5ofp3z.fsf@md5i.com> <83pmzwfgng.fsf@gnu.org> <83im5off16.fsf@gnu.org> <83h7l8fdfa.fsf@gnu.org> <871rccgqyz.fsf@igel.home> <83eegcfbrh.fsf@gnu.org> <8735wrrjx7.fsf@md5i.com> <83a6qzfxmc.fsf@gnu.org> <87sg4rclim.fsf@md5i.com> <83k0q3dzj7.fsf@gnu.org> <83czvvdw7o.fsf@gnu.org> <14e14f28-7ece-cd98-5e49-d4583a0153a0@gmx.at> <16b279ef-a1c2-cd41-b18c-69383174c72a@gmx.at> <87a6qs7z60.fsf@md5i.com> Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="1523"; mail-complaints-to="usenet@ciao.gmane.io" Cc: mwd@md5i.com, schwab@linux-m68k.org, 47244@debbugs.gnu.org, mwd@cert.org To: Michael Welsh Duggan Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Thu Mar 25 07:41:20 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 1lPJgE-0000Ec-Vo for geb-bug-gnu-emacs@m.gmane-mx.org; Thu, 25 Mar 2021 07:41:18 +0100 Original-Received: from localhost ([::1]:35950 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lPJgD-0003U9-Vi for geb-bug-gnu-emacs@m.gmane-mx.org; Thu, 25 Mar 2021 02:41:18 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:42396) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lPJRS-0001Wm-3t for bug-gnu-emacs@gnu.org; Thu, 25 Mar 2021 02:26:02 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:53644) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1lPJRR-0002PA-QK for bug-gnu-emacs@gnu.org; Thu, 25 Mar 2021 02:26:01 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1lPJRR-0000NP-KF for bug-gnu-emacs@gnu.org; Thu, 25 Mar 2021 02:26:01 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Thu, 25 Mar 2021 06:26:01 +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=B47244.16166535471422 (code B ref 47244); Thu, 25 Mar 2021 06:26:01 +0000 Original-Received: (at 47244) by debbugs.gnu.org; 25 Mar 2021 06:25:47 +0000 Original-Received: from localhost ([127.0.0.1]:36957 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1lPJRC-0000Mr-V6 for submit@debbugs.gnu.org; Thu, 25 Mar 2021 02:25:47 -0400 Original-Received: from eggs.gnu.org ([209.51.188.92]:49330) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1lPJR9-0000Mc-US for 47244@debbugs.gnu.org; Thu, 25 Mar 2021 02:25:45 -0400 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:44472) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lPJQy-000295-Km; Thu, 25 Mar 2021 02:25:34 -0400 Original-Received: from 84.94.185.95.cable.012.net.il ([84.94.185.95]:4748 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1lPJQq-0001zF-Gn; Thu, 25 Mar 2021 02:25:28 -0400 In-Reply-To: <87a6qs7z60.fsf@md5i.com> (message from Michael Welsh Duggan on Wed, 24 Mar 2021 22:19:35 -0400) 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:202984 Archived-At: > From: Michael Welsh Duggan > Cc: Michael Welsh Duggan , Eli Zaretskii , > "mwd@md5i.com" , "schwab@linux-m68k.org" > , "47244@debbugs.gnu.org" <47244@debbugs.gnu.org> > Date: Wed, 24 Mar 2021 22:19:35 -0400 > > > --- a/src/buffer.c > > +++ b/src/buffer.c > > @@ -2151,6 +2151,9 @@ set_buffer_internal_1 (register struct buffer *b) > > > > BUFFER_CHECK_INDIRECTION (b); > > > > + if (!BUFFER_LIVE_P (b)) > > + error ("Selecting deleted buffer"); > > + > > old_buf = current_buffer; > > current_buffer = b; > > last_known_column_point = -1; /* Invalidate indentation cache. */ > > Okay. Building now and will run until...something happens? Should I be > expecting an Emacs error from this? Yes. > Should I breakpoint the error() clause? Better put a breakpoint on this call to 'error' instead, because 'error' could be called for unrelated reasons, and it could be caught -- you don't want those cases. Thanks.