Increase the counter to a uint64_t. You can also start the counter at something other than zero to prove root cause faster.
Trampas On Fri, May 28, 2021 at 7:08 AM Adam Baron <vysoca...@gmail.com> wrote: > Czesc Tomek :), > > I'll try to add it. Thanks. > > However, I feel like it is rather related to the problem of overflowing a > uint32 counter of some kind. Since the TCP_PCBs are not freed after 2^32 > ticks. > > Adam > > pá 28. 5. 2021 v 9:44 odesílatel Tomasz W <wil...@gmail.com> napsal: > >> Hi (Cześć) >> Lok for this >> https://lists.nongnu.org/archive/html/lwip-devel/2020-12/msg00014.html >> In my case it solved the problem of the web server dying after a few days >> >> >> pt., 28 maj 2021 o 08:58 Adam Baron <vysoca...@gmail.com> napisał(a): >> > >> > Hello all, >> > >> > I'm having a small STM32F4 application running on devel branch of lwip, >> It includes httpd, sntp, smtp client, and mqtt client. All is running well >> until the fifth day, when mqtt client starts to receive pbuf=NULL and >> disconnects. My reconnect routine reconnects it in some short time, but it >> receives pbuf=NULL shortly after. >> > >> > Also later on I noticed in log: memp_malloc: out of memory in pool >> TCP_PCB. >> > I'm having defined MEMP_NUM_TCP_PCB as 30 and it seems enough for >> normal operation, I also upped it to 50, but ended with the same problem >> > In statistics the NUM_TCP_PCB increases and decreases as it should, but >> after uptime past 5 days it stays high with an error flag triggered. >> > >> > Quite interestingly it happens exactly after 2^32 milliseconds uptime. >> I tried to keep OpenOCD connected to start to peek in, but yet I did not >> manage to keep the openOCD running for so long without dropping the >> connection. >> > >> > Does anyone have any ideas please? >> > >> > Thanks in advance, >> > -- >> > 731435556 >> > Adam Baron >> > _______________________________________________ >> > lwip-users mailing list >> > lwip-users@nongnu.org >> > https://lists.nongnu.org/mailman/listinfo/lwip-users >> >> >> >> -- >> Pozdrawiam >> Tomek >> >> _______________________________________________ >> lwip-users mailing list >> lwip-users@nongnu.org >> https://lists.nongnu.org/mailman/listinfo/lwip-users > > > > -- > 731435556 > Adam Baron > _______________________________________________ > lwip-users mailing list > lwip-users@nongnu.org > https://lists.nongnu.org/mailman/listinfo/lwip-users
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