From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Po Lu via "Bug reports for GNU Emacs, the Swiss army knife of text editors" Newsgroups: gmane.emacs.bugs Subject: bug#50453: 27.2; Portable dumper broken on MSW Date: Thu, 09 Sep 2021 20:40:49 +0800 Message-ID: <87bl51ncq6.fsf@yahoo.com> References: <871r60v9i0.fsf.ref@yahoo.com> <871r60v9i0.fsf@yahoo.com> <83eea0pkdz.fsf@gnu.org> <87y287nsz5.fsf@yahoo.com> <83pmtjmc6e.fsf@gnu.org> <87bl52npea.fsf@yahoo.com> <87sfyem17q.fsf@yahoo.com> <8335qekllx.fsf@gnu.org> Reply-To: Po Lu Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="36964"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) Cc: 50453@debbugs.gnu.org To: Eli Zaretskii Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Thu Sep 09 14:42:19 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 1mOJNa-00095S-0r for geb-bug-gnu-emacs@m.gmane-mx.org; 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Thu, 9 Sep 2021 12:40:58 +0000 Original-Received: by kubenode504.mail-prod1.omega.sg3.yahoo.com (VZM Hermes SMTP Server) with ESMTPA ID e5c69d644ee196561d4b33a90c01b648; Thu, 09 Sep 2021 12:40:53 +0000 (UTC) In-Reply-To: <8335qekllx.fsf@gnu.org> (Eli Zaretskii's message of "Thu, 09 Sep 2021 14:57:14 +0300") X-Mailer: WebService/1.1.18924 mail.backend.jedi.jws.acl:role.jedi.acl.token.atz.jws.hermes.yahoo 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:213899 Archived-At: Eli Zaretskii writes: > Can you put a breakpoint in dump_map_file_w32 and verify that it is > called? If it is indeed called, can you step through it and see if it > fails, and if so, how? I tried a few times, but I gave up because Windows kept crashing. However, the portable dumper seems to rely on a function named `MapViewOfFileEx' at line 4499 of pdumper.c. According to the documentation, the function is only available on Windows XP or later; this seems to be a convincing explanation for the failure. Specifically, I'm referring to the "Requirements" section of: https://docs.microsoft.com/en-us/windows/win32/api/memoryapi/nf-memoryapi-mapviewoffileex, which states: Minimum supported client: Windows XP [desktop apps only] Thanks.