Re: [ECOS] help in tcp/ip stack !!!

["wangwei" <wangw at start dot com dot cn>]

Thank you ,Jonathan:

I try the method you told me, but the except still happened ,
and sometimes I got the error of  "out of mbuf" .
I suspect when many client connected the server,it will write much data
by tcp , and it will occupy too much mbuf , and cause "exh 4" when the
mbuffer is exhausted .

If so , are there any mechanism to avoid it happen ?
help me again .
thanks.
----- Original Message -----
From: "Jonathan Larmour" <jlarmour@redhat.com>
To: "wangwei" <wangw@start.com.cn>
Cc: <ecos-discuss@sources.redhat.com>
Sent: Tuesday, June 05, 2001 8:53 PM
Subject: Re: [ECOS] help in tcp/ip stack !!!


> wangwei wrote:
> >
> > Hi,all
> > help me !!
> > I make a tcp server in ecos. when client connect with it , appliaction
> > dynamically create a thread to communicate with client.
> > the client is running in linux, and can be run in background .
> > At normal, the server can running stably.
> > When I make a shell to run lots of client program in background,more
than 30
> > clients,the server in ecos give "EXH 4" error.
> > In this application, My memory in ecos is more than 3M ,there is enough
> > memory for malloc. And when thread which run server program is ended,
the
> > memory it used can be free .So I think memory cann't cause this problem.
> >
> > I had met the "EXH 4" error before . When I try ipaq nanox package in
ecos ,
> > it call nanosleep() in a no posix thread , and cause a "EXH 4" error.
> > so I suspect it is caused by the same reason .but I can't find out .
>
> That means you got an exception.
>
> I had a quick look at your code and I believe the problem is that you are
> using cyg_thread_kill() and then freeing the threads memory. You almost
> certainly want to use cyg_thread_delete() instead.
>
> Jifl
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