Re: iMac G3 IPv6 issue

["Aurélien GÉRÔME" <ag@roxor.be>]

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On Sun, Sep 12, 2004 at 03:58:50PM -0700, David S. Miller wrote:
> On Sun, 12 Sep 2004 18:57:31 +0100
> David Woodhouse <dwmw2@infradead.org> wrote:
> 
> > On Sun, 2004-09-12 at 15:39 +0200, Aurélien GÉRÔME wrote:
> > > I put IPv6 support, but the console is flooded by a lot of:
> > > hw tcp v6 csum failed
> > > However, IPv6 works, and IPv4 packets do not have this kind of issue.
> > > The network card is a Sun Gem. It is kind of weird to see bad packets.
> > 
> > I use the sungem in a similar machine with IPv6, and haven't seen any
> > problems. Can you tcpdump from a different machine on the network and
> > confirm whether these reported bad checksums really are happening or if
> > it's the fault of the hardware/driver?
> 
> One thing that's interesting is that the sungem and sunhme
> drivers are the only two in the whole tree that support
> IPV6 checksum offload.  Like David, I have never seen this
> problem on Sparc systems using the GEM chip and this
> driver.

The board is this:
0002:02:0f.0 Ethernet controller: Apple Computer Inc. UniNorth GMAC (Sun
GEM)

So, it is Apple stuff wrapping a Sun GEM chip. The issue may come from
that. Anyway, I am going to dig in the source code to find out.

Cheers.
-- 
        _,met$$$$$gg.        Aurélien GÉRÔME
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BOFH excuse #113: Root nameservers are out of sync

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