Date: Thu, 14 May 2009 17:27:50 +0900 From: Pyun YongHyeon <pyunyh@gmail.com> To: Lars Eggert <lars.eggert@nokia.com> Cc: "d@delphij.net" <d@delphij.net>, "freebsd-stable@freebsd.org" <freebsd-stable@freebsd.org>, "nigel@eyede.com" <nigel@eyede.com> Subject: Re: TCP differences in 7.2 vs 7.1 Message-ID: <20090514082750.GU65350@michelle.cdnetworks.co.kr> In-Reply-To: <DAF693BD-D7B0-49FA-97EF-41C1EA1FAF84@nokia.com> References: <guccc2$8b4$1@ger.gmane.org> <4A09DEF1.2010202@delphij.net> <4A09FDB2.5080307@eyede.com> <20090513004131.GP65350@michelle.cdnetworks.co.kr> <DAF693BD-D7B0-49FA-97EF-41C1EA1FAF84@nokia.com>
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On Thu, May 14, 2009 at 10:10:12AM +0300, Lars Eggert wrote:
> Hi,
>
> I've been seeing similar issues ("IP bad-len 0" packets in tcpdump
> traces") since 7.2-STABLE and em interfaces. Turning off TSO seems to
> do the trick here, too. So at least from where I'm sitting, this is
> not only an fxp problem.
>
Then you're seeing different problem on em(4). Last time I checked
em(4) TSO code in em(4) didn't use m_pullup and just returned
ENXIO to caller. I'm not sure that is related with your issue but
would you tell us your network configuration? If you can easily
reproduce the issue would you let us know?
> Lars
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