Re: [lwip-users] lwip adding a pcb into active lsit which is already inserted

[Sergio R. Caprile]

I would start by checking that the ethernet driver works, the port 
works, take a known to  work application and make sure that everything 
works.
If errors arise here, it is quite possible that either the driver is 
buggy or the port is buggy. All calls to low-level functions must be in 
the same thread.
Once that is checked and confirmed functional, I would continue by 
providing information on what API I am using on my application, and at 
what point something fails, after trying to collect more information 
with a debugger. All calls to the RAW API must be on the same thread. 
Each socket must be used from within one thread (well..., but let's keep 
it simple, and I'm no expert on this)