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Re: [lwip-users] LWIP stops responding on Ping and HTTP calls from a bro
From: |
Ruben |
Subject: |
Re: [lwip-users] LWIP stops responding on Ping and HTTP calls from a browser |
Date: |
Wed, 27 Apr 2011 13:36:51 +0200 |
Hi Kieran
It is strange but UDP frames are not
blocking and keep on beeing processed by the stack but TCP not.
in the
function ip_input at "switch (IPH_PROTO(iphdr)) " the UDP case it called but the
TCP case us never called untill I wait a while and refresh my broser. and if i
am lucky the tcp frame is decoded and the browser display a webpage.
~ ~
~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
From: address@hidden
To:
address@hidden
Date: 10:23:19, 04.26.2011
Subject: Re:
[lwip-users] LWIP stops responding on Ping and HTTP calls from a browser
~ ~
~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
>>On Fri, 2011-04-22 at
10:52 +0200, Ruben van der Kraan wrote:
>>
>> > After a
boot of the software everything works ok. I can Ping, acces
>> > the
webserver pages, open the telnet server.
>> > But at a point the
websever and ping stop working. In wireshark i see
>> > my PC
sending request to the embedded device
>> > a STM32F217 but the
stack does not send a respons.
>>
>> Such problems almost
always turn out to be a bug in the port or
>> application where they're
violating lwIP's threading constraints,
>> resulting in more than one
thread active in lwIP at one time, and so
>> corruption of some state
which leads something to get stuck in an
>> infinite loop and the sort
of problems you describe.
>>
>> Kieran
>>
>>
>>
_______________________________________________
>> lwip-users mailing
list
>> address@hidden
>>
https://lists.nongnu.org/mailman/listinfo/lwip-users
>>
>>
>>
- [lwip-users] LWIP stops responding on Ping and HTTP calls from a browser, Ruben van der Kraan, 2011/04/24
- Re: [lwip-users] LWIP stops responding on Ping and HTTP calls from a browser, Kieran Mansley, 2011/04/26
- Re: [lwip-users] LWIP stops responding on Ping and HTTP calls from a browser, Ruben, 2011/04/27
- Re: [lwip-users] LWIP stops responding on Ping and HTTP calls from a browser,
Ruben <=
- Re: [lwip-users] LWIP stops responding on Ping and HTTP calls from a browser, Kieran Mansley, 2011/04/28
- Re: [lwip-users] LWIP stops responding on Ping and HTTP calls from a browser, Ruben, 2011/04/28
- Re: [lwip-users] LWIP stops responding on Ping and HTTP calls from a browser, Kieran Mansley, 2011/04/28
- Re: [lwip-users] LWIP stops responding on Ping and HTTP calls from a browser, Ruben van der Kraan, 2011/04/28
- Re: [lwip-users] LWIP stops responding on Ping and HTTP calls from a browser, Kieran Mansley, 2011/04/28
- Re: [lwip-users] LWIP stops responding on Ping and HTTP calls from a browser, Ruben, 2011/04/29
- Re: [lwip-users] LWIP stops responding on Ping and HTTP calls from a browser, Ruben, 2011/04/29