RE: [ECOS] Newbie network problem

["Frank Pagliughi" <fpagliughi at mindspring dot com>]

Andrew,

Thanks for the help. The local tests (ping_lo_test & tcp_lo_test) appear to
work fine.

Now I'm trying to walk through the 'ping_test' and a little lost. The
behavior I'm seeing is something of the following:

-----

When I run the app, over the first ~12 sec it throws out five ARP's to the
server, each of which is matched by a reply to the device that the device
does not appear to get. "recvfrom: operation timed out"

The device then puts out five ARP's looking for the bogus host
(192.168.0.33) which go unanswered and we see the "sendto: host is down"
messages.

The app thread then ends, "EXIT:<done>", but I leave the device running
(with the network threads going).

About 90 seconds later the server sends out a broadcast looking for a
different computer entirely (but it's the first broadcast since the app
ended).

100ms after that an ICMP Ping Request from the device appears on the wire!
Followed by an immediate reply by the host.

Then the network isr/threads on the device start reporting Rx packets coming
in(mainly 60 bytes in len) but the app is long since dead.

-----

I'm assuming there's some sort of interrupt or thread priority problem, but
am having trouble narrowing it down. Any suggestions on where to look?

Frank

-----Original Message-----
From: ecos-discuss-owner@ecos.sourceware.org
[mailto:ecos-discuss-owner@ecos.sourceware.org]On Behalf Of Andrew Lunn
Sent: Thursday, December 09, 2004 12:08 PM
To: Frank Pagliughi
Cc: ecos-discuss@ecos.sourceware.org
Subject: Re: [ECOS] Newbie network problem


On Thu, Dec 09, 2004 at 12:04:01PM -0500, Frank Pagliughi wrote:
> Hey All,
>
> I've been using eCos for a while but am trying a network app for the first
> time. The drivers on the ARM target board is suspect, so I'm trying to get
> the initial app running on an i386 PC w/ i82559 network board. I've fallen
> back to just trying to get a test application to run properly, like
> 'server_test' or 'ping_test'
>
> I'm loading/debugging the app via RedBoot over a serial line. Both the app
> and RedBoot are configured to use different static IP addresses (RedBoot
at
> 192.168.0.10, the app at 192.168.0.12). For the app's eCos library, I
> accepted all the settings from the config tool for the 'net' packages and
> have only changed the IP address and turned on the tests and lots of debug
> info.

Please export your configuration and send it to us. I always use
ecosconfig not the GUI tool. With ecosconfig you can do this with:

ecosconfig export export.ecm

and then send up the export.ecm file.

        Thanks
                Andrew

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