[lwip-devel] [bug #49533] TCP connection deadlocks upon dropped window update due to not filling window

[Simon Goldschmidt]

Follow-up Comment #7, bug #49533 (project lwip):

Your patch starts the persist timer in tcp_output(). I wonder if that is
enough. Couldn't we come into the same siatuation when we receive a window
that is smaller than the next segment to be sent?

Might be as easy as changing tcp_receive() to start the persist timer if
"pcb->snd_wnd < pcb->unacked->len" or something like that...

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