From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from e2i632.smtp2go.com (e2i632.smtp2go.com [103.2.142.120]) by sourceware.org (Postfix) with ESMTPS id 37C51395B058 for ; Fri, 16 Apr 2021 14:07:06 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org 37C51395B058 Received: from [10.176.58.103] (helo=SmtpCorp) by smtpcorp.com with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92-S2G) (envelope-from ) id 1lXP7g-qt4HI8-4f for cygwin@cygwin.com; Fri, 16 Apr 2021 14:07:04 +0000 Received: from [10.62.31.23] (helo=romulus.metastack.com) by smtpcorp.com with esmtpsa (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.92-S2G) (envelope-from ) id 1lXP7f-9EFOrj-SK for cygwin@cygwin.com; Fri, 16 Apr 2021 14:07:03 +0000 Received: from remus.metastack.local (usr233-bra.static.cable.virginmedia.com [62.31.23.243] (may be forged)) by romulus.metastack.com (8.14.2/8.14.2) with ESMTP id 13GE70gh004450 (version=TLSv1/SSLv3 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 16 Apr 2021 15:07:00 +0100 Received: from Hermes.metastack.local (172.16.0.8) by Hermes.metastack.local (172.16.0.8) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2176.2; Fri, 16 Apr 2021 15:07:25 +0100 Received: from Hermes.metastack.local ([fe80::210d:d258:cd04:7b5a]) by Hermes.metastack.local ([fe80::210d:d258:cd04:7b5a%3]) with mapi id 15.01.2176.012; Fri, 16 Apr 2021 15:07:25 +0100 From: David Allsopp To: "cygwin@cygwin.com" Subject: RE: Regression in Cygwin 3.2.0 Thread-Topic: Regression in Cygwin 3.2.0 Thread-Index: AdcyqcCG5s2HGI90S9SHr7J6oEC2WAABqKiAAAOcDNA= Date: Fri, 16 Apr 2021 14:07:25 +0000 Message-ID: <04ac3a4dd79d40c4996b54f5ec91114c@metastack.com> References: <000b01d732a9$c15bf510$4413df30$@cl.cam.ac.uk> <6bdd010e-8634-0271-3254-a1140e411df8@towo.net> In-Reply-To: <6bdd010e-8634-0271-3254-a1140e411df8@towo.net> Accept-Language: en-GB, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [172.16.0.125] Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.65 on 62.31.23.242 X-Smtpcorp-Track: 1_be7f9EFOrMSK.-SoGceggLDJoa Feedback-ID: 614951m:614951apMmpqs:614951s6I-Ahd1fe X-Report-Abuse: Please forward a copy of this message, including all headers, to X-Spam-Status: No, score=-1.3 required=5.0 tests=BAYES_00, DKIMWL_WL_MED, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_EF, HEADER_FROM_DIFFERENT_DOMAINS, KAM_NUMSUBJECT, SPF_HELO_PASS, SPF_PASS, TXREP autolearn=no autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on server2.sourceware.org X-BeenThere: cygwin@cygwin.com X-Mailman-Version: 2.1.29 Precedence: list List-Id: General Cygwin discussions and problem reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 16 Apr 2021 14:07:13 -0000 Thomas Wolff wrote: > Am 16.04.2021 um 12:17 schrieb David Allsopp via Cygwin: > > I'm unable to build OCaml using the mingw-w64 compilers with Cygwin > > 3.2.0. Windows 10.0.19042.928 (and tried on three different machines > > so far) > > > > Repro: > > > > - Fresh Cygwin64 installation with make, libiconv, > > mingw64-x86_64-gcc-core and git added; fire up mintty > > - git clone --depth 1 --recursive https://github.com/ocaml/ocaml > > - cd ocaml && ./configure --host=3Dx86_64-w64-mingw32 && make -j8 > > flexdll && make -j8 world.opt > > > > This is consistently hanging with Cygwin 3.2.0 and seems possibly to > > have something to do with linking (the creation of > > runtime/ocamlrun.exe and stdlib/camlheader, which is also an > > executable, seem to be part of the problem). > > > > It can be immediately fixed by downgrading to Cygwin 3.1.7, cleaning > > the tree and repeating the build. > > > > I'm of course very happy to try to reduce this to a smaller repro > > case, but is there an obvious culprit in Cygwin 3.2.0 to check before I > > do? > The build fails for me with error messages but it does not hang. Thanks for confirming! > You could have tried at least building without -j option, and running the > build steps separately for better diagnostics. Indeed - the repro case above was intended to be small and fast. I was stil= l at the "is this just me/us", stage. Suggesting a non-parallel build of OCam= l would have been mean, as it takes about an hour if it doesn't crash...! That said, the non-parallel build I think reveals the Cygwin problem: there are console windows constantly flashing up (it renders the workstation unusable for the duration of the build). The first stage of the build compiles ocamlrun.exe which is non-Cygwin in this case and then it uses that throughout the build, so I guess it's the conpty changes which are bit= ing. However, the build did succeed when run without -j, however this (which wil= l take about 20 mins or so): ./configure --build=3Dx86_64-w64-mingw32 --disable-native-compiler make flexdll runtop causes a new console Window to pop up with an OCaml prompt (which can be qu= it by taking #quit;;) rather than the same prompt being connected to mintty. With make -j, it doesn't appear to flash up all the console Windows, but it= 's also reliably failing. I tried with the cygwin1.dll snapshot from this morn= ing which seems to be doing the same. David