From: Hugo 'NOx' Tyson <hmt@cygnus.co.ukx>
To: ecos-discuss@sourceware.cygnus.com
Subject: Re: [ECOS]TCP/IP problem
Date: Mon, 04 Sep 2000 04:15:00 -0000 [thread overview]
Message-ID: <pt3djg8l5x.fsf@masala.cygnus.co.uk> (raw)
In-Reply-To: <001d01c01611$f8f78500$bd2da8c0@lqx.star.com.cn>
"lqx" <liqx@term.star.com.cn> writes:
> I have got ecos running on our board using the CL_PS7500FE ARM =
> processor. I have included DM9008 ethernet chip and use the tcp/ip =
> stack version 1_0b1 that I downloaded from the =
> URL--sourceware.cygnus.com .The chip really works.But when I ping the =
> ecos with a packet more than 1500 bytes,the ecos never send the packet =
> back.Why?Is there any bug in the tcp/ip stack?for when I debugged the =
> net device driver, I found the driver received the packet correctly =
> Anyone can help me?
I don't remember the details, but I remember encountering the same problem,
and I think that this change was the fix for it:
(in net/tcpip/VERSION/ChangeLog)
2000-06-23 Hugo Tyson <hmt@cygnus.co.uk>
* src/ecos/support.c (cyg_net_mbuf_alloc, cyg_kmem_init): Align
the mbuf pool to MSIZE [128] bytes. That way dtom() works, nasty
though it is. That's needed for ip reassembly in ip_input.c, when
dealing with large icmp-layer packets eg. ping -s 2000 ...
So perhaps if you update from anoncvs?
HTH,
- Huge
next prev parent reply other threads:[~2000-09-04 4:15 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2000-09-03 18:45 lqx
2000-09-04 4:15 ` Hugo 'NOx' Tyson [this message]
2001-12-26 5:26 [ECOS] TCP/IP problem Raman Sivam
2002-09-26 23:29 Marc Pignat
2002-09-27 5:08 ` Gary Thomas
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