Date: Sun, 7 Mar 2010 14:57:17 -0800 From: Pyun YongHyeon <pyunyh@gmail.com> To: Tim Kientzle <kientzle@freebsd.org> Cc: "'freebsd-current@freebsd.org'" <freebsd-current@freebsd.org> Subject: Re: Wireless TCP aborts Message-ID: <20100307225717.GB1218@michelle.cdnetworks.com> In-Reply-To: <4B9425C4.5060309@freebsd.org> References: <4B9425C4.5060309@freebsd.org>
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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
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