X-Recipient: archive-cygwin AT delorie DOT com DomainKey-Signature: a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:subject:references:from:to:message-id:date :mime-version:in-reply-to:content-type :content-transfer-encoding; q=dns; s=default; b=s45yrdMLLYKm/2lZ 7y3mhsVBwERdQ1yJDc/aNq09RSiU7s33/IaS0ZqxvqKe1FN+vjVZ3h4kGO5VPsPX S/tSw6SRHG3ng3GSbInNMlKXl6iq8HDuWe3GzeGIo7tMrPguZK2dBgI3Q0ilpQ7u fSZHy/jEJCd/PydKji/9AC33ysE= DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:subject:references:from:to:message-id:date :mime-version:in-reply-to:content-type :content-transfer-encoding; s=default; bh=2L/5YHA1uBPdBQbELTuOl/ aF8cU=; b=qJ5hsRFMh6eCv+Fcijcvn1gVQiixY54IT7BM68L5MYHWlE/C+X/zWx tOGPfdTbPWE3I++2Rdw9AiKoGVOhpGDGDh1GYoo2fp/9SOilvx0LwAAC7y8GMDQl g5eboohMz+U9C0DxH4JS5HhM9oyAAnl07ja2nv+iE+RlApVPLkCW8= Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner AT cygwin DOT com Mail-Followup-To: cygwin AT cygwin DOT com Delivered-To: mailing list cygwin AT cygwin DOT com Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=0.1 required=5.0 tests=AWL,BAYES_50,KAM_LAZY_DOMAIN_SECURITY autolearn=no version=3.3.2 spammy=seasoned, Section, clearing, awaits X-HELO: m0.truegem.net Subject: Re: cygwin.dll: bug with select on Windows console References: <5680953B DOT 8050200 AT glup DOT org> <568776D4 DOT 7020102 AT glup DOT org> From: Mark Geisert To: cygwin AT cygwin DOT com Message-ID: <56886F32.1060004@maxrnd.com> Date: Sat, 2 Jan 2016 16:45:38 -0800 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:42.0) Gecko/20100101 Firefox/42.0 SeaMonkey/2.39 MIME-Version: 1.0 In-Reply-To: <568776D4.7020102@glup.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit John Hood wrote: > More observations: > > * This also happens on a Windows 8.1 VDI install with a different AV/security > solution-- different enough from my machine that I don't think the Windows/app > environment is the cause of this, it looks more strongly like a Cygwin issue to me. > > * > clearly states that select() must zero out all FD_SET bits when it returns 0. > > * Moving the mouse cursor around over the console window (at a bash prompt, > without mouse modes enabled) makes this issue happen *much* more frequently. I've looked at the Cygwin source for select(), and maybe other folks have, so the issue is not being ignored at least. It seems to me this odd case (not clearing the fd sets on zero return) is being overlooked by Cygwin's rather hairy select() implementation. But I'm just a guy on the mailing list and the definitive answer awaits the return of seasoned Cygwin developer(s). :-) > I'd investigate further but on current Git sources, 'make' fails for me with this: > > /home/cgull/src/newlib-cygwin/newlib/libc/configure: line 2164: syntax error > near unexpected token `..' > /home/cgull/src/newlib-cygwin/newlib/libc/configure: line 2164: > `NEWLIB_CONFIGURE(..)' Are you following the instructions in the FAQ, Section 6.21? It's not difficult to build the Cygwin DLL but you do want to follow the FAQ because there are numerous cul-de-sac opportunities otherwise. ..mark -- 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