From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: martin rudalics Newsgroups: gmane.emacs.bugs Subject: bug#47244: 28.0.50; SIGSEGV in long-runnning Emacs Date: Wed, 24 Mar 2021 17:09:24 +0100 Message-ID: References: <87im5ofp3z.fsf@md5i.com> <83sg4sfm1w.fsf@gnu.org> <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> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="10386"; mail-complaints-to="usenet@ciao.gmane.io" Cc: "mwd@md5i.com" , "schwab@linux-m68k.org" , "47244@debbugs.gnu.org" <47244@debbugs.gnu.org> To: Michael Welsh Duggan Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Wed Mar 24 17:13:31 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 1lP68Q-0002ZK-Is for geb-bug-gnu-emacs@m.gmane-mx.org; 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Wed, 24 Mar 2021 17:09:27 +0100 In-Reply-To: Content-Language: en-US X-Provags-ID: V03:K1:GYSY854PDgFQob8mWFbnJnzbORlPNAEIE9zLkWrKbswRQHznCaQ Q8lwtjVMIdzmG6poJOWWgkAPSNhP4I+1Ryt9OTTG45KyM4aDABVl9jLMegjlqldvoMPxMfX UldrYC+e0Ujpb598ydf3ZfEgYCnxWTRaP8nwsKlrH29+4cEt4ncTGXFJ7Q6lezLbje7QLdo zMwxWTxzHhW87+e5C9seQ== X-UI-Out-Filterresults: notjunk:1;V03:K0:Imnn1yMTay8=:JKzxkd/aTV3APDypWU5HnW W9ELA8gkGnYHPFTh+mUr6sSFenCzG4Udtl9/TDxLa3jeGcUfXdsXVlCRU2PueFjNt9Wuqqfaa OobOf/WkbZ4vF6w+tKSah01OzvF8wZzxKJCXgo5lfp8YTHpyMNXFOTHpYLqSTlBmek/Yk48Gv SX2XqMkmW5W13d3EmYj/tBHGW6zOd9Qlx3SO7XwKI/XT5EUEuFF5JqiXP8/IVXMjbHbZ8zJmS mcrhu+kq8DaQmIDB+DhznSsu/tljXpTmRsZezbN4ESbKMm8Y6HDbaHpxmXzOQerhaE5zfGOn+ St2Iu/WY8U99nVVshv/LChZCs7gu+SQHKe2mkZdHmc3Yj57fUcGloIA4t3/+bztiS1myWea8/ 01QEOPm4XJaHprICAZ7bVim3wCUu3seeLFMzYaXwlPBz+uCGEhdu9r+gmDQEuE9BWUlAZ0gjP EV7Wq36uz4gZe/4udM69OXhsV+ZLaE0UpJtAEPmnmWMMqqMOJ0fBBD7izsbrd1Mr9+UUyDivF 4UqDvIMq6teBYFVEyRnCU5u4odBfrlFUPHmkZ/qZ/iOqPzsQzGjWs8AG0W3eKwGJPFQhjeYjN fNyQrl1MM4gBaxBi02yNdKfUm/48KHJW3WKOv/D5xN496IGaDxiXfbiQCgQzkzNl8aVz0g/QF nF56PigCRJG6j+Uo4VxKKpfqlRhV6s+oIVAi8xA/G9GZqdNr4vOnUgNrSBe/gPwqsR/2vSCOb s4oTqjElNSTlcRrAa6WdFf5DDQATirhGUwSyeBVolREyQcECxL+KZhQmiMm3OL2weB9E0zzj 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:202956 Archived-At: >> The attached one should make more sense. Please use that. > > I did, and the SEGFAULT happened fairly shortly afterward. The error > did not trigger, so the cause is still unknown. I'll keep the gdb > session around, but that backtrace is pretty much the same. I'm not surprised. The check for `replace-buffer-in-windows' does pretty much the same as Eli's approach. You just don't have to run Emacs in the debugger in order to use it. Maybe try now: diff --git a/src/buffer.c b/src/buffer.c index 8e33162989..9ca5731bcf 100644 --- 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. */ martin