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:reply-to:subject:to:references:from:message-id
	:date:mime-version:in-reply-to:content-type
	:content-transfer-encoding; q=dns; s=default; b=gB4cKCTdszKTQTNy
	TdE9SCKf/tnM34Qzw972FccvVK44F1xWoBWAqplOrohyJxESieXm/DqGfEAZl4k6
	IG6bZjFNHCgI96tyPexI/1hsqE9luenENrGTFuduGIb8w6JzwWviTlY703/1Sg4C
	NwLfOsk3bRsHFHbc6xSoxrF2ui8=
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:reply-to:subject:to:references:from:message-id
	:date:mime-version:in-reply-to:content-type
	:content-transfer-encoding; s=default; bh=z4Gk/C+5DC8+3uUCkec2B/
	38J6Y=; b=IVDBhFfu1E0qvM7jMirkZ+1OEiSE8wdID6faDDC8N0Igti38xPKiIf
	PRtzj1B6opmM9oz/qiyju5pK3M0RhZVW+z8wPljc+guGjBoc7/OXw9fNDPSNY1c2
	Yo48BWGxSGWDBRuNhmiCIrcTM+Tcz50WesIgWdLj5L21NOWAmfJis=
Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm
List-Id: <cygwin.cygwin.com>
List-Subscribe: <mailto:cygwin-subscribe AT cygwin DOT com>
List-Archive: <http://sourceware.org/ml/cygwin/>
List-Post: <mailto:cygwin AT cygwin DOT com>
List-Help: <mailto:cygwin-help AT cygwin DOT com>, <http://sourceware.org/ml/#faqs>
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-Spam-SWARE-Status: No, score=0.4 required=5.0 tests=BAYES_00,KAM_BADIPHTTP,KAM_LAZY_DOMAIN_SECURITY,KAM_SHORT,RCVD_IN_DNSWL_LOW,WEIRD_PORT autolearn=no version=3.3.2 spammy=lee, Lee, basin, curl
X-HELO: smtp-out-no.shaw.ca
Reply-To: Brian DOT Inglis AT SystematicSw DOT ab DOT ca
Subject: Re: Something makes curl hang for 5 minutes after connection refused
To: cygwin AT cygwin DOT com
References: <8a710131-214c-badd-04a8-fc0899cf5511 AT gmail DOT com> <CAD8GWssBAH_KKXCC7jxTgCjS02KjXVb7LgkNvyriXJeE7cPSOg AT mail DOT gmail DOT com>
From: Brian Inglis <Brian DOT Inglis AT SystematicSw DOT ab DOT ca>
Openpgp: preference=signencrypt
Message-ID: <77f4e68b-4cd7-b939-7d36-688d1734df2a@SystematicSw.ab.ca>
Date: Fri, 30 Nov 2018 20:42:35 -0700
User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.3.2
MIME-Version: 1.0
In-Reply-To: <CAD8GWssBAH_KKXCC7jxTgCjS02KjXVb7LgkNvyriXJeE7cPSOg@mail.gmail.com>
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 7bit
X-IsSubscribed: yes
Note-from-DJ: This may be spam

On 2018-11-30 12:49, Lee wrote:
> On 11/30/18, Basin Ilya  wrote:
>> Hi.
>>
>> Recently I noticed that `curl` does not fail immediately after connection
>> refused, but waits for 5 minutes.
>>
>> This only happens on my machine and only with the `Cygwin` version of
>> `curl`. The mingw version is unaffected.
>> I tried downgrading curl, but it didn't help. I thought there's a rogue
>> setting in `/etc` or in home or maybe some environment variable, but I
>> couldn't find it.
>>
>>     basin AT BASIN /cygdrive/c/Users/basin
>>     $ >/dev/null /usr/bin/curl -v http://127.0.0.1:2/
>>     * STATE: INIT => CONNECT handle 0x80048658; line 1404 (connection
>> #-5000)
>>     * Added connection 0. The cache now contains 1 members
>>     *   Trying 127.0.0.1...
>>     * TCP_NODELAY set
>>     * STATE: CONNECT => WAITCONNECT handle 0x80048658; line 1456 (connection
>> #0)
>     <.. snip ..>
>>     curl: (28) Connection timed out after 300145 milliseconds
>>
>>     basin AT BASIN /cygdrive/c/Users/basin
>>     $ /usr/bin/curl --version
>>     curl 7.59.0 (i686-pc-cygwin) libcurl/7.59.0 OpenSSL/1.0.2p zlib/1.2.11
>> libidn2/2.0.4 libpsl/0.18.0 (+libidn2/2.0.2) libssh2/1.7.0 nghttp2/1.31.0
> 
>> Can someone try to reproduce it?
> 
> I get the same behavior:
> $ /usr/bin/curl -v http://127.0.0.1:2/
> * STATE: INIT => CONNECT handle 0x600057ad0; line 1404 (connection #-5000)
> * Added connection 0. The cache now contains 1 members
> *   Trying 127.0.0.1...
> * TCP_NODELAY set
> * STATE: CONNECT => WAITCONNECT handle 0x600057ad0; line 1456 (connection #0)
> * Connection timed out after 300324 milliseconds
> * multi_done
> * stopped the pause stream!
> * Closing connection 0
> * The cache now contains 0 members
> curl: (28) Connection timed out after 300324 milliseconds
> 
> $ /usr/bin/curl --version
> curl 7.59.0 (x86_64-unknown-cygwin) libcurl/7.59.0 OpenSSL/1.0.2p
> zlib/1.2.11 libidn2/2.0.4 libpsl/0.18.0 (+libidn2/2.0.2) libssh2/1.7.0
> nghttp2/1.31.0
> 
> 
> I also get an almost immediate 'failed to connect' notice on windows:
> C:\>C:\UTIL\curl\curl.exe -v http://127.0.0.1:2/
> *   Trying 127.0.0.1...
> * TCP_NODELAY set
> * connect to 127.0.0.1 port 2 failed: Connection refused
> * Failed to connect to 127.0.0.1 port 2: Connection refused
> * Closing connection 0
> curl: (7) Failed to connect to 127.0.0.1 port 2: Connection refused
> 
> with either version of curl:
> C:\>where curl
> C:\UTIL\curl\curl.exe
> C:\Windows\System32\curl.exe

Ditto all the way!

Could this be caused by network speed improvements made to Cygwin a while back?
Or were those patches never sent/received/applied from Daniel Havey (MS Windows
Program Manager for Transports and IP)?

-- 
Take care. Thanks, Brian Inglis, Calgary, Alberta, Canada

This email may be disturbing to some readers as it contains
too much technical detail. Reader discretion is advised.

--
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