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: Wed, 31 Mar 2021 10:48:27 -0400 Message-ID: References: <87im5ofp3z.fsf@md5i.com> <87a6qs7z60.fsf@md5i.com> <83eeg3kawg.fsf@gnu.org> <83y2e6kp9t.fsf@gnu.org> <83tuouknpb.fsf@gnu.org> <83sg4eknh5.fsf@gnu.org> <83r1jykmt0.fsf@gnu.org> <2d0dbdc8-3678-cd21-234a-9c63bb004629@gmx.at> <834kgrifrt.fsf@gnu.org> <106ce987-1a45-bbdf-3897-445baa99a476@gmx.at> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="27586"; 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" <47244@debbugs.gnu.org> To: martin rudalics Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Wed Mar 31 16:50:05 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 1lRcAT-0006x7-N4 for geb-bug-gnu-emacs@m.gmane-mx.org; 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Wed, 31 Mar 2021 10:48:27 -0400 Original-Received: from lx-birch.ad.sei.cmu.edu (localhost [127.0.0.1]) by lx-birch.ad.sei.cmu.edu (8.14.7/8.14.7) with ESMTP id 12VEmRbI005343; Wed, 31 Mar 2021 10:48:27 -0400 Original-Received: (from mwd@localhost) by lx-birch.ad.sei.cmu.edu (8.14.7/8.14.7) id 12VEmRpS005340; Wed, 31 Mar 2021 10:48:27 -0400 X-Authentication-Warning: lx-birch.ad.sei.cmu.edu: mwd set sender to mwd@cert.org using -f In-Reply-To: <106ce987-1a45-bbdf-3897-445baa99a476@gmx.at> (martin rudalics's message of "Wed, 31 Mar 2021 10:32:37 -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:203369 Archived-At: martin rudalics writes: > >> #0 raise (sig=) at ../sysdeps/unix/sysv/linux/raise.c:50 > >> set = { > >> __val = {402653184, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 268435456, 0, 0, 93824994300624, 18446744067266838271} > >> } > >> pid = > >> tid = > >> #1 0x00005555557197a1 in terminate_due_to_signal > >> (sig=6, backtrace_limit=2147483647) at ../../master/src/emacs.c:416 > >> #2 0x00005555557c4858 in die > >> (msg=0x55555594f2a0 "b->window_count == 0", file=0x55555594da8a "../../master/src/buffer.c", line=1969) at ../../master/src/alloc.c:7420 > >> #3 0x0000555555759190 in Fkill_buffer (buffer_or_name=XIL(0x555557888814)) > >> at ../../master/src/buffer.c:1969 > >> buffer = XIL(0x555557889325) > >> b = 0x555557889320 > >> tem = XIL(0) > >> m = 0x0 > > > > So replace_buffer_in_windows didn't do its job? > > Why did replace_buffer_in_windows_safely then apparently fail too? What > is the value of b->window_count here? Unless we managed to botch that's > buffer's window count, I can't see how replace_buffer_in_windows_safely > could have possibly failed. b->window_count is 1. -- Michael Welsh Duggan (mwd@cert.org)