From owner-freebsd-current@FreeBSD.ORG Sun Mar 7 22:57:22 2010 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 17C92106566B for ; Sun, 7 Mar 2010 22:57:22 +0000 (UTC) (envelope-from pyunyh@gmail.com) Received: from mail-yw0-f181.google.com (mail-yw0-f181.google.com [209.85.211.181]) by mx1.freebsd.org (Postfix) with ESMTP id B4EBD8FC0C for ; Sun, 7 Mar 2010 22:57:21 +0000 (UTC) Received: by ywh11 with SMTP id 11so1491420ywh.13 for ; Sun, 07 Mar 2010 14:57:20 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:received:from:date:to:cc :subject:message-id:reply-to:references:mime-version:content-type :content-disposition:in-reply-to:user-agent; bh=OnIBMW0z7qamLiw6LxjCZBzdZv/tp+AtzrfSSq3uI5c=; b=rBEmI3rx1v+qy0B+AcSATBPoK9fbAuTjESZosuaDgDWs436SULhBMKAYDp39Fd+Oaj NZ3dZ5QeeNPVqASqZosfXxPOHGTiL31BGttTvxQNmryFKJmxRPXRvyTbRyz6ZJYN+eOC JLJ3emcW+Z7ykbR03zHGaHVKLQsSX9yXWFgKQ= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=from:date:to:cc:subject:message-id:reply-to:references:mime-version :content-type:content-disposition:in-reply-to:user-agent; b=rtX0YEnf7958In/HrROAqSDPlzGtswBNJFqwNouCCXBLXcuyfGbcoJhXacjOqpFTps jYe+mUp9WTzY5QkBzmvK486yi40BBI8LdOxOycLrllliMErhUw0lXGfijmv27fmpe4UT 6xPI7JYw97AcxtEHZ49mrdYTS5lantEOMSpJM= Received: by 10.101.45.9 with SMTP id x9mr789683anj.187.1268002640559; Sun, 07 Mar 2010 14:57:20 -0800 (PST) Received: from pyunyh@gmail.com ([174.35.1.224]) by mx.google.com with ESMTPS id 4sm1566820ywd.58.2010.03.07.14.57.18 (version=TLSv1/SSLv3 cipher=RC4-MD5); Sun, 07 Mar 2010 14:57:19 -0800 (PST) Received: by pyunyh@gmail.com (sSMTP sendmail emulation); Sun, 7 Mar 2010 14:57:17 -0800 From: Pyun YongHyeon Date: Sun, 7 Mar 2010 14:57:17 -0800 To: Tim Kientzle Message-ID: <20100307225717.GB1218@michelle.cdnetworks.com> References: <4B9425C4.5060309@freebsd.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4B9425C4.5060309@freebsd.org> User-Agent: Mutt/1.4.2.3i Cc: "'freebsd-current@freebsd.org'" Subject: Re: Wireless TCP aborts X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: pyunyh@gmail.com List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 07 Mar 2010 22:57:22 -0000 On Sun, Mar 07, 2010 at 02:16:36PM -0800, Tim Kientzle wrote: > Using ssh and rsync to copy a lot of stuff from my > old desktop to my new laptop. The old desktop is using > a wired connection to an (admittedly crappy) D-Link router, > the new one is using an Atheros wireless connection to the > same router. I periodically see the transfer fail with > the following messages on the wireless side: > > Corrupted MAC on input. > Disconnecting: Packet corrupt I guess this message came from ssh. > rsync: connection unexpectedly closed ... [receiver] > > and then the rsync session is dead. > > It seems odd that a single corrupt packet would terminate > the TCP connection. > I think it's default behavior of ssh if it detect malformed packet. I used to see this forced disconnection of ssh when driver incorrectly set RX checksum flag OK for corrupted packets which were caused by hardware bug. > uname: FreeBSD 9.0-CURRENT r201154M: Tue Dec 29 09:27:29 PST 2009