[lwip-devel] [bug #27791] null pointer dereference (pcb->unacked == 0) in tcp_in.c:tcp_process

[Kieran Mansley]

Follow-up Comment #1, bug #27791 (project lwip):

It sounds like you're saying that the response to the SYN is processed before
you've finished sending the SYN itself.  You should not be able to process a
received packet while you're still active in the stack with a transmitted
packet.  

Perhaps you can help by describing how your driver interfaces to the stack
(how does it pass received packets for processing) and how your application
interfaces to the stack.  What environment are you running in (e.g. do you
have an OS?)

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