On 4/19/07, Camille Huot <cam@g.o> wrote:
> 2007/4/19, Joe Peterson <joe@...>:
> > A reliable test
> > case I found is trying to FTP to ftp.astron.com - never works.
> >
>
> I'm experiencing the exact same problem. tcpdump show bad checksums like
> Nathan, ftp ftp.astron.com doesn't work.
>
> My nic is:
> em0: <Intel(R) PRO/1000 Network Connection Version - 6.2.9> port
> 0xcc00-0xcc3f mem 0xdfde0000-0xdfdfffff irq 18 at device 2.0 on pci1
> em0: Ethernet address: 00:11:09:35:c3:81
>
> Using a vanilla FreeBSD 6.2 kernel on Gentoo/FreeBSD, networking is working.
> On #gentoo-bsd we're trying to find the origin
> of the issue.
> --
> Camille Huot

Victory!

Here is how I compiled a Gentoo/FreeBSD kernel which does not produce
broken tcp packets:

1. I emerged =sys-devel/gcc-3*.
2. Used gcc-config to set gcc-3 as the system compiler
3. Edited the freebsd-sources ebuild to remove the gcc41 patch.
4. Emerged freebsd-sources
5. Compiled the kernel and rebooted to find I could make normal TCP
connections to anyone, anywhere.

So gcc-4.1 seems to be the culprit here.  I will check FreeBSD's
archives to see if this has come up, but I wonder if they have moved
to gcc4 yet anyway.  So, give what I posted above a try an let me know
how it worked for you.

-- 
Nathan Smith
ndansmith@...
-- 
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