Re: [lwip-users] udp echo stress test with LWIP - crash LWIP

[Ranran]

On Wed, Oct 30, 2019 at 11:55 AM Mário Luzeiro <address@hidden> wrote:
>
> > I noticed that with RTOS lwip get crash
>
> I had some experiences with freeRTOS, it crashed when there is task 
> starvation or it could be some interrupt priority issues.
> Where is it crashing? should be blocked somewhere...

It's seem like only LWIP stack/threads stopped responding, it is not a
crash of freeRTOS, because everything else behaves normally.
As far as I know there is only one thread in my LWIP, named tcpip thread.


>
> Mario Luzeiro
>
> ________________________________________
> From: lwip-users <lwip-users-bounces+mrluzeiro=address@hidden> on behalf of 
> Ranran <address@hidden>
> Sent: 30 October 2019 07:28
> To: Mailing list for lwIP users
> Subject: [lwip-users] udp echo stress test with LWIP - crash LWIP
>
> Hello,
>
> I am using LWIP with stm32, running udp server echo in my board.
> From pc I run udp client stress test.
> I noticed that with RTOS lwip get crash (it even can't ping anymore,
> after stopping the stress test), but without RTOS it behaves without
> any issues.
> Thing I tried:
> 1. compiled the application with speed optimization
> 2. changing tcpip thread priority from high to realtime.
>
> I can't say what exactly happened to LWIP which caused it to stop
> responding to ping.
>
> Is there any idea what else we can do or how to debug this issue ?
>
> Thanks,
> Ran
>
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