On Mon, Mar 30, 2015 at 10:11 PM, Magnus Therning <[email protected]>
wrote:

> On Sun, Mar 29, 2015 at 09:00:27PM +0100, David Scott wrote:
> > On Sun, Mar 29, 2015 at 7:52 PM, Magnus Therning <[email protected]>
> > wrote:
> [...]
> >> This time around I don't get anything in reply to my requests
> >> though.
> >
> > This is probably because my debug suggestion removed the assert and
> > probably confused the higher layers.
>
> Indeed, I put back the assert statement, after the if, and started
> getting the partial reply again.
>
> > Unless I'm misreading this, I think it must be a bug in
> > mirage-net-xen (the ethernet driver) misreading the ethernet frames
> > somehow? Or perhaps the peer host is sending extra junk on the end
> > of its IP packets but within the ethernet frames?
> >
> > What kind of network are you using?
>
> It's a standard cable modem & router (Netgear).  The cubietruck is
> connected directly to the modem.  I'm issuing the HTTP from a laptop,
> and both a wireless and wired connection gives the same behaviour.
>
> > I've filed this issue for now:
> >
> > https://github.com/mirage/mirage-net-xen/issues/24
>
> Excellent.  Let me know if there's something else I should try.
>
> I was planning on capturing some traffic from a third system to see
> what's actually on the network, but I don't think I'll find the time
> to do that until towards the end of the week.
>

After a clean rebuild on my cubieboard, I'm getting the assertion failures
too, which is good. I notice the assert that's failing was added relatively
recently[1] in tcpip v2.2.3 so it's possible that it's simply highlighting
an old bug in mirage-net-xen. The hunt continues...

Cheers,
Dave

[1]
https://github.com/mirage/mirage-tcpip/commit/00ca58327682dd1363459ee570964aade0704b7c


>
> /M
>
> --
> Magnus Therning                      OpenPGP: 0xAB4DFBA4
> email: [email protected]   jabber: [email protected]
> twitter: magthe               http://therning.org/magnus
>
> Time is a great teacher, but unfortunately it kills all its pupils.
>      -- Hector Louis Berlioz
>



-- 
Dave Scott
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