Hello,
I write code for SMT32 board using FreeRTOS and lwIP 1.4.1. I use sockets.
There is a simple TCP server: it accepts incoming connection, reads 100
bytes sent from PC, sends 100 byte reply, closes connection and waits for
another connection. I observed that after some time lwIP stops
Hi,
You must check interrupt priorities and your FreeRTOSConfig definition
file
Here is my interrupt settings from the FreeRTOSConfig .h file:
/* Cortex-M specific
Hi,
I have some issues with device based on FreeRTOS (stm32F4 port) and lwIP
1.4.1 stack. There is parallel server and client functionality.
Case similiar to one described here:
http://lwip.100.n7.nabble.com/SYN-flood-attack-lwip-crash-td17632.html, but
with one significant difference: I don't
Tomek wrote:
Case similiar to one described here:
http://lwip.100.n7.nabble.com/SYN-flood-attack-lwip-crash-td17632.html, but
with one significant difference: I don't use backlog.
Does that mean you are absolutely sure that TCP_LISTEN_BACKLOG is set to 0?
Simon
Hello,
I'm trying to make a server which responds to a client.
The server responds to certain commands. Each client is handled in a
seperate task. When a client disconnect from the server, without prior
notice, the server crashes. I think it has something to do that the
receivetask tries to read
Only one TCP_LISTEN_BACKLOG define in opt.h:
#ifndef TCP_LISTEN_BACKLOG
#define TCP_LISTEN_BACKLOG 0
#endif
Editor suggests that at this moment TCP_LISTEN_BACKLOG is not defined, so I
am as sure as I can.
--
View this message in context:
Tomek wrote:
Editor suggests that at this moment TCP_LISTEN_BACKLOG is not defined, so I
am as sure as I can.
Alright. That and the SYN/ACK/RST sequence you posted suggests that somewhere
in your application, the connection is dropped. Maybe because of some kind of
resource shortage. I'd try
Hello,
Is there a easy way to get current time and date (year, month, day, hour,
minute) from LWIP? Maybe information like this are stored somewhere inside
LWIP? Or should I try to get this information from internet (device is
connected to internet)? Did anyone tried to obtain information like
I do not exclude possibility that there is something wrong in my code, but
when I have tried to debug server's task, I've noticed that lwip_accept is
called properly but never returns back (I mean: generally it works, but
after some time lwip_accept won't return, so I can't call lwip_read).
Is it
Tomek wrote:
Is it posibble under any circumstances for lwip_accept to drop incoming
connection?
Yes: if it ran out of memory.
Simon
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Hi Simon,
Actually no I did not see it.
Now after I checked the contribution again I see it. My code is based
on code written by Michael Margolis.
My code is much simpler.
Do you remember that I asked you once about adding a pool call back for
server main pcb. I find that this addition
will
In such a case, should it return or stay in lwip_accept (as described above)?
--
View this message in context:
http://lwip.100.n7.nabble.com/lwIP-1-4-1-server-s-SYN-flood-hang-no-backlog-tp23116p23127.html
Sent from the lwip-users mailing list archive at Nabble.com.
Hi Dominik,
LwIP has not any time information. You must create SNTP client and use it to
synchronize internal CPU timebase (best as phase locked loop).
Martin. pers...@transcon.cz
- Original Message -
From: Dominik Wybrańczyk
To: Mailing list for lwIP users
Sent: Tuesday,
Thanks Noam. I have interrupt priorities set exactly as you have written.
The problem must be somewhere else.
Best regards,
Grzegorz Niemirowski
Noam weissman n...@silrd.com napisał(a):
Hi,
You must check interrupt priorities and your FreeRTOSConfig definition
file
Here is my interrupt
B Can you share your email id with me? It is helpful for sending the
project files.
SI'd be surprised if Sergio wanted to receive your project files
Simon: as 100.1% of the times, you are right ;^)
Bellphin: please search in the list and try to solve the problem
yourself. You can post your
Hi guys, I've been online for a couple months on the list and I'm
already tired of reading about this; I imagine how you guys are... ;^)
Anyway, joke aside, since people don't search the list they will
probably won't read the wiki either, is there anything we can do to
induce RTOS users to check
Krzysztof Wesołowski wrote:
Second possible issue is that some old (?) STM32 demo code only
processed one packet per interrupt, causing extra packets to be
stalled in memory.
That's a really good hint. I keep forgetting about that, although I'm
using their controllers - but not with the code
I can imagine how you can feel but I really avoid posting to any forum or
mailing list before investigating a problem by myself. I read about
priorities and they are set correctly. I don't know what you mean by single
thread but every socket I use is accessed only in the thread where it was
Hi,
Please check if you free memory properly. It sounds like a memory leak?
BR,
Noam.
-Original Message-
From: lwip-users-bounces+noam=silrd@nongnu.org on behalf of Grzegorz
Niemirowski
Sent: Tue 9/2/2014 8:34 PM
To: Mailing list for lwIP users
Subject: Re: [lwip-users] lwIP hangs
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