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Re: [lwip-users] Abnormal Tx delays
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From: |
Frédéric BERNON |
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Subject: |
Re: [lwip-users] Abnormal Tx delays |
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Date: |
Tue, 18 Sep 2007 20:07:57 +0200 |
I don't got such problems with current code. Since
you got the CVS HEAD today, to you have updated your port & driver with all
"last" requirements?
I think to things like sys_mbox_tryfetch, lwip_init
(if you use tcpip_init, you don't have to call it directly), the new
NETIF_FLAG_ETHARP flag for
netifs.
There is also last changes in CHANGELOG,
like rename of MEMP_TCPIP_MSG to
MEMP_TCPIP_MSG_API and the new MEMP_TCPIP_MSG_INPKT pool for input
packets.
Perhaps the problem is here? I hope it help
you...
----- Original Message -----
Sent: Tuesday, September 18, 2007 5:34
PM
Subject: [lwip-users] Abnormal Tx
delays
Hi all,
I have a problem with my system.
I use lwip CVS HEAD
(got it today).
I use µC/OS-II.
I use ethernet chip KSZ8841 (8 bit
mode).
I use tcpip_input to input frame into lwip.
I use several tasks to
send/receive data thru lwip.
One of these tasks is a basic WEB
server.
At startup, pinging my system (from a WinXP PC) is ok.
Then I
use FireFox to browse the WEB of my system.
I refresh several times.
After
a random number of refresh, lwip still responds to input packets
but with
big delays.
Even pinging my system with a quiet traffic is not ok. Answers
come
several seconds (several tens of seconds) after the incoming
packets.
See the WireShark capture (a filter has been used to capture only
interresting packets).
Looking at lwip traces, it seems that incoming
packets are stored but
not treated immediately. After a random delay, they
are treated and
response packet are sent.
I can't figure out where
the problem is.
Any help is
welcome.
Nicolas
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