From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from ciao.gmane.io (static.214.254.202.116.clients.your-server.de [116.202.254.214]) by sourceware.org (Postfix) with ESMTPS id 47F423857C5B for ; Thu, 10 Sep 2020 19:15:56 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org 47F423857C5B Received: from list by ciao.gmane.io with local (Exim 4.92) (envelope-from ) id 1kGS31-0006nG-0Z for cygwin@cygwin.com; Thu, 10 Sep 2020 21:15:55 +0200 X-Injected-Via-Gmane: http://gmane.org/ To: cygwin@cygwin.com From: Andrew Schulman Subject: Re: /dev/p* causes shell crash in i686 Date: Thu, 10 Sep 2020 15:15:48 -0400 Message-ID: <9guklf1s4h9bgik1ik916j0ddi6g8ps93h@4ax.com> References: <20200909214930.GA4127@calimero.vinschen.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Newsreader: Forte Agent 4.2/32.1118 X-Archive: encrypt X-Spam-Status: No, score=-1.8 required=5.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS, KAM_DMARC_STATUS, KAM_NUMSUBJECT, SPF_HELO_NONE, 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: Thu, 10 Sep 2020 19:15:57 -0000 > On Sep 9 08:08, Andrew Schulman via Cygwin wrote: > > Here's a strange one. In bash in i686, try to run: > > > > ls /dev/ptmx > > > > I only get about as far as: > > > > ls /dev/p > > > > and then my terminal window vanishes. This happens: > > > > * In fish or bash. > > * On two different hosts that I've tried. > > * In mintty or a system terminal. In the system terminal, sometimes the > > command works normally the first time, but fails the 2nd time; or I have to > > press after `ls /dev/p`, then the terminal vanishes. > > * With other commands that treat their arguments as files, not text. So for > > example, I can't finish typing `cat /dev/ptmx` or `test -r /dev/ptmx` > > before the terminal window vanishes, but `echo /dev/ptmx` works normally. > > > > It doesn't happen: > > > > * In x86_64 - only i686. > > * In scripts - only interactively. > > > > Is anyone else able to reproduce this? I've tried to capture an strace log, > > but I've failed so far. The strace seems to stop the crash. Still trying. > > > > I thought this could be a BLODA problem, but the two hosts I tried are > > running different virus scanners (McAfee and Windows Defender). > > > > Cygwin 3.1.7-1, all packages up-to-date. Output of cygcheck -svr attached. > > > > Andrew > > I think I fixed it. I just uploaded new developer snapshots to > https://cygwin.com/snapshots/ Please give them a try. When I substitute cygwin1-20090909.dll for cygwin1.dll in i686, I can't run any commands. They all give "The application was unable to start correctly (0xc0000022)". Anything different I should be doing?