[lwip-devel] Re: [lwip-users] lwIP 1.3.0-rc1 released

[Kieran Mansley]

On Fri, 2008-02-29 at 09:15 -0500, Paul Chapman wrote:
> Hi Kieran,
> 
> A quick update.  I've got things going swimmingly now.  I had an error in my 
> linker's memory map.  User error!
> 
> 1.3 RC1 so far is proving to be faster than 1.2 and at least as stable. 
> I've had it running non-stop for about 12 hours straight, running a very 
> simplistic receive ony server at about 645 KBytes/sec average over a single 
> TCP/IP connection.

[CC'ing lwip-devel]

Glad you've managed to resolve your problems.

> PS.  How long do you expect the release candidate trial period to last?

It should have finished long ago (i.e. it's already a few weeks too
long).  I'm simply waiting to have a couple of spare hours to go through
and check there are no more bugs that have cropped up that we need to
squeeze in, and then making the final release. 

Kieran

> ----- Original Message ----- 
> From: "Kieran Mansley" <address@hidden>
> To: <address@hidden>
> Cc: <address@hidden>
> Sent: Thursday, February 28, 2008 3:42 AM
> Subject: [Fwd: [lwip-users] lwIP 1.3.0-rc1 released]
> 
> 
> > Forwarding to lwip-devel so all developers can see and respond...
> >
> > -------- Forwarded Message --------
> > From: Paul Chapman <address@hidden>
> > To: address@hidden
> > Subject: [lwip-users] lwIP 1.3.0-rc1 released
> > Date: Wed, 27 Feb 2008 18:49:05 -0500
> > Hi Kieran,
> >
> > I have a fairly solid lwIP 1.2.0 port for the atmel at91sam9260.  I got
> > it it a point where I could receive multiple gigabytes over a tcp/ip
> > connection at about 380 KBytes/sec (debug build), and send at about 800+
> > KBytes/sec using the sockets api.  I did see crashes after hours and
> > hours of transfer over a connection, and I got tired of hunting for the
> > problem, so I thought maybe I should try porting 1.3 RC1 !!!  Well,
> > things are a little messy so far.
> >
> > At first, ip_frag.c was crashing during packet reassembly.  I fixed this
> > by surrounding the "ip_reass_helper" structure definition with LWIP
> > packing macros as below...
> >
> > PACK_STRUCT_BEGIN
> > struct ip_reass_helper {
> >  struct pbuf *next_pbuf;
> >  u16_t start;
> >  u16_t end;
> > };
> > PACK_STRUCT_END
> >
> > Now, my port can reassemble ICMP ping packets with a payload > 1472
> > bytes.  This is good.  I can ping this thing continuously without
> > incident.
> >
> > Unfortunately, my port of 1.3 is otherwise completely unstable.  Things
> > crash in one second or less when I try to run a simple recv() server
> > (using sockets interface), wherease same code, etc... was running
> > reliably on 1.2.0.   So, it looks like I might be on the bleeding edge,
> > right?  I suspect perhaps it is again about alignment issues, like with
> > ip_frag.c...  This ARM9 is not so forgiving about alignment.
> >
> > Anyway, I'd like to get any other patches for RC1 etc... as they become
> > available.  Have any fixes rolled in yet?
> >
> > Perhaps you can submit my fix for ip_frag.c as a patch.  I'm not
> > officially signed up as an lwip-user yet.  I will do that tomorrow.
> >
> > Thanks,
> >
> > Paul Chapman
> >
> >
> >
> >
> >
> >
> >
> > 
>