Re: [lwip-users] ASSERT-FAIL (invalid message type)

Hi Simon!

About the I related with the WIP_NETCONN_SEM_PER_THREAD parameter was the follow topic :
https://lists.gnu.org/archive/html/lwip-devel/2015-10/msg00126.html
Maybe my association was not good...

OK, is recommended enable the parameter reporteded!
But how I wrote, I have had crash on assert (tcpip.c), do you can suggest anything about that assert-fail, even with WIP_NETCONN_SEM_PER_THREAD parameter disabled?

Thank you very much!

Em dom, 13 de jan de 2019 às 06:17, address@hidden <address@hidden> escreveu:

Am 12.01.2019 um 14:20 schrieb Norberto R. de Goes Jr.:
> Hi all.
>
> I have used the lwip stack in my project with multithread, no RAM
> limitation and running on Linux SO.
>
> Does I need to define LWIP_NETCONN_SEM_PER_THREAD parameter (default =
> 0) ? Is it recommended or mandatory?

It is recommended because it is faster: without it, socket threads
create a new semaphore for many calls (to synchronize wih tcpip_thread).
By enabling it (and implementing thread-local storage) every thread only
creates one semaphore and reuses it many times.

>
> I question that because I am having crash in
> ".../lwip/src/api/tcpip.c":        LWIP_ASSERT("tcpip_thread: invalid
> message", 0);
> OBS: msg->type = 2962209658 (invalid)

I don't think this messages is related to LWIP_NETCONN_SEM_PER_THREAD.
How do you come to this conclusion?

Regards,
Simon

>
> Commits in use (SHA-1) :
>     lwip: c8b65f6c1d2aaa6b3bb1b3d600e54137f294a2d6
>     lwip-contrib: 4e553f7b3d3af4ac1f3f6c70f38371e4395fdccd
>
> Thanks.
> Norberto Goes
>
> --
> Norberto R. de Goes Jr.
> CPqD - DRC
> Tel.: +55 19 3705-4241 / Fax: +55 19 3705-6125
> address@hidden <mailto:address@hidden>
> www.cpqd.com.br <http://www.cpqd.com.br/>
>
>
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From:	Norberto R. de Goes Jr.
Subject:	Re: [lwip-users] ASSERT-FAIL (invalid message type)
Date:	Sun, 13 Jan 2019 09:47:33 -0200