From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 35014 invoked by alias); 14 May 2018 21:44:57 -0000 Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@cygwin.com Mail-Followup-To: cygwin@cygwin.com Received: (qmail 34738 invoked by uid 89); 14 May 2018 21:44:56 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-3.0 required=5.0 tests=AWL,BAYES_00,RCVD_IN_DNSWL_LOW,SPF_HELO_PASS autolearn=ham version=3.3.2 spammy=Hx-languages-length:2273 X-HELO: out2-smtp.messagingengine.com Received: from out2-smtp.messagingengine.com (HELO out2-smtp.messagingengine.com) (66.111.4.26) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Mon, 14 May 2018 21:44:55 +0000 Received: from compute6.internal (compute6.nyi.internal [10.202.2.46]) by mailout.nyi.internal (Postfix) with ESMTP id 1AA7F224AD for ; Mon, 14 May 2018 17:44:53 -0400 (EDT) Received: from mailfrontend2 ([10.202.2.163]) by compute6.internal (MEProxy); Mon, 14 May 2018 17:44:53 -0400 X-ME-Sender: Received: from [192.168.1.102] (host86-160-189-108.range86-160.btcentralplus.com [86.160.189.108]) by mail.messagingengine.com (Postfix) with ESMTPA id BAC791025E for ; Mon, 14 May 2018 17:44:52 -0400 (EDT) Subject: Re: libharfbuzz0 1.7.6-1 update causing xwin-xdg-menu.exe to crash To: The Cygwin Mailing List References: <30aa068b-574f-8770-d8f3-eb037c038709@scrc.umanitoba.ca> <63a969f7-00eb-2067-7dbe-f141bfecbaae@dronecode.org.uk> <7a60e967-6861-5e5c-f0ee-5ebb6bf14e23@SystematicSw.ab.ca> From: Jon Turney Message-ID: <3a375be2-499f-1f40-8c90-7c91b8822e3e@dronecode.org.uk> Date: Mon, 14 May 2018 21:47:00 -0000 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.7.0 MIME-Version: 1.0 In-Reply-To: <7a60e967-6861-5e5c-f0ee-5ebb6bf14e23@SystematicSw.ab.ca> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit X-SW-Source: 2018-05/txt/msg00186.txt.bz2 On 14/05/2018 20:30, Brian Inglis wrote: > On 2018-04-26 08:03, Jon Turney wrote: >> On 19/04/2018 22:15, Gilles Detillieux wrote: >>> Has anybody else run into this problem? I've done two installations of >>> Cygwin/X on Windows 10 systems this week, and they both had problems with the >>> XWin Server dying just a few seconds after starting up. I traced the problem >>> back to xwin-xdg-menu.exe getting a Segmentation fault, which then causes XWin >>> Server to exit. I hacked an alternate .startxwinrc file to prevent XWin Server >>> from dying (it ends with a "sleep infinity"), so I could debug it further. >>> >>> With the XWin Server running reliably, I then ran "strace xwin-xdg-menu.exe" >>> and saw that it got a segmentation fault just after reading a TTF font from >>> the Windows Font directory (bahnschrift.ttf if it matters). I noticed there >>> were two recent library updates related to font handling, so I tried back out >>> to the previous version for each. It turns out that when I reverted to version >>> 1.7.4-1 of libharfbuzz0, xwin-xdg-menu.exe stopped crashing. >>> >>> If it matters, both these systems are the Fall Creator's Update (1709) of >>> Windows 10 64-bit, and I'm running the 32-bit version of Cygwin. >>> >>> Hopefully someone can track down and fix this recent bug! >> >> Thanks for reporting this. >> >> I can reproduce this problem, but it only seems to occur with 32-bit cygwin. >> >> (Obviously you also need a recent enough Windows 10 to have the Bahnschrift font) >> >> The actual crash seems to be in fontconfig, e.g. 'fc-query >> /usr/share/fonts/microsoft/bahnschrift.ttf' fails in the same way. >> >> I didn't get very far investigating the problem, as rebuilding the fontconfig >> package with the current toolchain seems to be enough to make the problem go away. > > I haven't noticed any problems with Bahnschrift, but as it is a DE DIN 1451 Note that this problem only effects 32-bit Cygwin. > Schrift (typeface), based on the original URW Fette Mittelschrift (bold > regular), Engschrift (condensed), Breitschrift (expanded), it could be > substituted by similar free fonts such as the Google Fonts Roboto family or SIL > OFL licensed equivalents. -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple