Tomek wrote:
In such a case, should it return or stay in lwip_accept (as described above)?

That's a good question. Keeping the 'should' aside, it will stay in lwip_accept as it is just waiting on an mbox there: if nothing gets put into the mbox (because new connections cannot be created/out of memory), it will just keep waiting. To start debugging this, taking a look at lwip_stats (especially all the 'err' members) might help.

Simon

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