From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 89346 invoked by alias); 19 Apr 2018 21:15:57 -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 89172 invoked by uid 89); 19 Apr 2018 21:15:42 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=0.0 required=5.0 tests=BAYES_20,TIME_LIMIT_EXCEEDED autolearn=unavailable version=3.3.2 spammy=centre, dept, Dept, dying X-HELO: cliff.scrc.umanitoba.ca Received: from cliff.scrc.umanitoba.ca (HELO cliff.scrc.umanitoba.ca) (140.193.42.125) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Thu, 19 Apr 2018 21:15:26 +0000 Received: from cliff.scrc.umanitoba.ca (cliff.scrc.umanitoba.ca [140.193.42.125]) (authenticated bits=0) by cliff.scrc.umanitoba.ca (8.14.7/8.14.7) with ESMTP id w3JLFFVQ006013 (version=TLSv1/SSLv3 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO); Thu, 19 Apr 2018 16:15:15 -0500 To: cygwin@cygwin.com From: Gilles Detillieux Subject: libharfbuzz0 1.7.6-1 update causing xwin-xdg-menu.exe to crash Message-ID: <30aa068b-574f-8770-d8f3-eb037c038709@scrc.umanitoba.ca> Date: Thu, 19 Apr 2018 21:15:00 -0000 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.7.0 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit X-SW-Source: 2018-04/txt/msg00238.txt.bz2 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, Gilles -- Gilles R. Detillieux E-mail: Spinal Cord Research Centre WWW: http://www.scrc.umanitoba.ca/ Dept. of Physiology and Pathophysiology, Rady Faculty of Health Sciences, Univ. of Manitoba Winnipeg, MB R3E 0J9 (Canada) -- 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