delorie.com/archives/browse.cgi   search  
Mail Archives: cygwin/2004/02/13/14:41:58

Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm
List-Subscribe: <mailto:cygwin-subscribe AT cygwin DOT com>
List-Archive: <http://sources.redhat.com/ml/cygwin/>
List-Post: <mailto:cygwin AT cygwin DOT com>
List-Help: <mailto:cygwin-help AT cygwin DOT com>, <http://sources.redhat.com/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
Date: Fri, 13 Feb 2004 14:40:55 -0500
From: Christopher Faylor <cgf-no-personal-reply-please AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: select() hangs sometimes, for TCP connections
Message-ID: <20040213194055.GA2855@redhat.com>
Mail-Followup-To: cygwin AT cygwin DOT com
References: <20040213122720 DOT 17765 DOT qmail AT web60301 DOT mail DOT yahoo DOT com> <20040213143240 DOT GC4672 AT redhat DOT com> <20040213192836 DOT GP3854 AT cygbert DOT vinschen DOT de>
Mime-Version: 1.0
In-Reply-To: <20040213192836.GP3854@cygbert.vinschen.de>
User-Agent: Mutt/1.4.1i
X-IsSubscribed: yes
Reply-To: cygwin AT cygwin DOT com

On Fri, Feb 13, 2004 at 08:28:36PM +0100, Corinna Vinschen wrote:
>On Feb 13 09:32, Christopher Faylor wrote:
>>On Fri, Feb 13, 2004 at 04:27:19AM -0800, Patrick Samson wrote:
>>>Problem: sometimes select() doesn't return.
>>>
>>>Context: I run a DB replication scenario, with cron, everything 5 mn.
>>>There is no change in the DB, so the scenario is always the same.  Most
>>>of the time, it works.  But eventually, after some time (may be some
>>>minutes or hours), a process A keeps waiting forever in select() for a
>>>response on a TCP socket.  With gdb I can see that the other end B
>>>returned in its ReadCommand() function, meaning it has send its
>>>response and waits for a new command, so this side should be OK.
>>
>>I suspect that this is basically a winsock socket reuse bug that has
>>been around for a long time.
>>
>>Corinna, does this ring a bell?
>
>Hmm...  no, not off top of my head.  Any additional hint?

Wasn't there a problem where a port was reused that wasn't exactly ready
to be reused or something?  I'm sorry that I don't remember exactly.

It just feels vaguely like a problem we threw our hands up on a while
ago.

cgf

--
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple
Problem reports:       http://cygwin.com/problems.html
Documentation:         http://cygwin.com/docs.html
FAQ:                   http://cygwin.com/faq/

- Raw text -


  webmaster     delorie software   privacy  
  Copyright © 2019   by DJ Delorie     Updated Jul 2019