From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Nikolay Kudryavtsev Newsgroups: gmane.emacs.devel Subject: Re: Unexec dumping results in "Segmentation fault" on Windows Msys2 Date: Fri, 16 Apr 2021 19:57:57 +0300 Message-ID: <79b4e022-5d46-ae76-2192-9e8594c43d8d@gmail.com> References: <83im52ed8b.fsf@gnu.org> <989be2e0-a090-309b-58cb-8064c6bd5aee@gmail.com> <83y2dycmgr.fsf@gnu.org> <835z0oyrct.fsf@gnu.org> <83eefby1hy.fsf@gnu.org> <64f14133-a647-7406-4908-671258038ae2@gmail.com> <834kg7xqrm.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="11465"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.9.1 Cc: emacs-devel@gnu.org To: Eli Zaretskii Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Fri Apr 16 19:54:16 2021 Return-path: Envelope-to: ged-emacs-devel@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 1lXSfW-0002qO-W0 for ged-emacs-devel@m.gmane-mx.org; Fri, 16 Apr 2021 19:54:14 +0200 Original-Received: from localhost ([::1]:36066 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lXSfW-0005a7-0v for ged-emacs-devel@m.gmane-mx.org; Fri, 16 Apr 2021 13:54:14 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:52506) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lXRnE-0000jj-KJ for emacs-devel@gnu.org; Fri, 16 Apr 2021 12:58:09 -0400 Original-Received: from mail-lj1-x235.google.com ([2a00:1450:4864:20::235]:37429) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1lXRn9-0005xD-D2; Fri, 16 Apr 2021 12:58:08 -0400 Original-Received: by mail-lj1-x235.google.com with SMTP id r20so31811873ljk.4; Fri, 16 Apr 2021 09:58:01 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:subject:to:cc:references:message-id:date:user-agent :mime-version:in-reply-to:content-transfer-encoding:content-language; bh=qQlr+NAFR5RQbd1zI7neLkxWwQJ2TjnRWdy5JwvK3pg=; b=iJlIVY4FS60v+f3kpwuaHJCabe2OyM6zUETyU6YwV2gOHxs3lbfBvkiJiG+NfmpQqJ QE6u4BtGbGZTGOCsmDeFkpkTeXpbNF5NHwuQ5zAU2DX2buvyTAOsbgmm0zPCcCanewYl 9fNpk4aOZG5jlBnZCsnQtyYXffTi5FXhIU/fTz/0fVmD6F0yDH4PUeFa7aINNMkncMHb ydWyQVJSkkePZBLgq68dbCXlLDqYygPidkWI6FHPl2knHJlZq98GV0eJ9pWh79FGR+Kq dwfKQjAPnbrRHb2gLj/xxGi1Bdm5e/MI+5jAjj58asvnCAxXiQIYA2th1v123uJHkDyp qovg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:subject:to:cc:references:message-id:date :user-agent:mime-version:in-reply-to:content-transfer-encoding :content-language; bh=qQlr+NAFR5RQbd1zI7neLkxWwQJ2TjnRWdy5JwvK3pg=; b=FrMgFNwUOxsVQTx0N1jlzu6gBfPXjDfBAA21XklBQbUJ5VKCYqSle/I2JdQaAq1mb+ 6kzchLi5iLlQ7soALb7rQ+p+h7MgT+md9e2M5yPWu/R/ZoYOMcGQI1GDdvxacTqHA8KF Vtn8xxs6Rlf8VoAH8ilaCay4gnV32z8I26g5IttThG6QvyThCvyHL1SOM60B+8PVtXmD JBJxJFKIUwRS6v2C9pwVWmL5yhJqXXMynuu7cqVEIojj8MFMnQVXny7I5SHeRkAqR98z KgOKz5ER76zymEwJtXVH9V3jw8KuVo1HUi5rXtfy3Q0lQb0DKV/bolvnMKWr9ZrgNkmp b+uQ== X-Gm-Message-State: AOAM530YfuYDFOSlRwoj+xOQ9V6REJhYsWdPJx4CWgfMkAPDwghIWOtL 9l1zK5dSkfy94FkCFFlDGmnJE0qniSY= X-Google-Smtp-Source: ABdhPJyBgPy0MW2QFG3KoSNxy0QhHyTZiRo73E8HL8FSKrPgSCNODtL455e2ruXSUMpLuXQLl4ypQg== X-Received: by 2002:a05:651c:a04:: with SMTP id k4mr3312217ljq.427.1618592280037; Fri, 16 Apr 2021 09:58:00 -0700 (PDT) Original-Received: from ?IPv6:2a02:2168:b115:9d00:f537:a002:64f2:4fd4? ([2a02:2168:b115:9d00:f537:a002:64f2:4fd4]) by smtp.gmail.com with ESMTPSA id j21sm250510lja.39.2021.04.16.09.57.58 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 16 Apr 2021 09:57:59 -0700 (PDT) X-Google-Original-From: Nikolay Kudryavtsev In-Reply-To: <834kg7xqrm.fsf@gnu.org> Content-Language: en-US Received-SPF: pass client-ip=2a00:1450:4864:20::235; envelope-from=nikolay.kudryavtsev@gmail.com; helo=mail-lj1-x235.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, NICE_REPLY_A=-0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.io gmane.emacs.devel:268120 Archived-At: All of the following was done on the main branch, revision cddf85d256. With binutils 2.36, so the segfault is triggered here. I can redo all of this on any other revision if you want. load_path_check: Thread 1 hit Breakpoint 1, load_path_check (lpath=...)     at D:/Emacs/source/repo/src/lread.c:4469 4469                dir_warning ("Lisp directory", XCAR (path_tail)); (gdb) p lpath $1 = {i = 0x1f8b61c1b43} (gdb) backtrace #0  load_path_check (lpath=...) at D:/Emacs/source/repo/src/lread.c:4469 #1  0x00007ff654870215 in init_lread ()     at D:/Emacs/source/repo/src/lread.c:4668 #2  0x00007ff6546a5a06 in main (argc=2, argv=0x1f8b62517b0)     at D:/Emacs/source/repo/src/emacs.c:1778 Temacs p current_thread: 0x40095df20. Emacs.exe does not exist("mv -f emacs.exe bootstrap-emacs.exe" gets done just before it tries to compile those elisp files and crashes), but for bootstrap-emacs.exe it's 0xffea01a5df20p. I could not find any change in those values after running that a few times.