[lwip-devel] long term stability - ping no response after few days - HELP ME

[Piero 74]

Hi all.

I found a strange problem. I have two boards in test connected in a business LAN: both, after few days, are became blocked: trying to ping them, no answer was received, and trying to connect to them, it was impossible. I can only reset the board

I'm using stable lwip 130 (no head version) with freertos, and i have:

- a task for emac driver (in ethernetif.c)

- a task for lwip core

- an application task: there are 3 listeners, and a loop which use select function on listeners sockets

- i have a control in each task: if a task doesn't kick a watchdog manager, the code will reset the board

Note: there are some traffic in LAN - broadcast packets i suppose, so, there is always activity for emac driver

Now i have another board in the same situation connected to a DEBUGGER: if the trouble happens again, i'll provide more information studying lwip_stats, and doing some debug operation to find a block.

Now, i want to know if some bugs found in lwip 130 and fixed in head version could be related to my trouble: ANY IDEA???

Bye,

Piero