[lwip-devel] [bug #20021] conn->sem is only signaled one-way

[Simon Goldschmidt]

Follow-up Comment #10, bug #20021 (project lwip):

>Might this cause a new set of problems where the tcpip_thread gets blocked
waiting for memory to do operation A, while operation B that could otherwise
go ahead isn't able to get into the tcpip_thread? The benefits might outweigh
this downside though. Probably do in fact if there's an existing race that
would also be solved.

I don't know if the benefits outweigh that. That's a thing I wouldn't like
seeing integrated. That would mean one full TCP window could block all other
connections.

In fact, the tcpip_thread can't even process incoming segments and thus would
block forever...



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