[lwip-devel] [bug #44225] closing TCP socket should time out eventually

[Simon Goldschmidt]

URL:
  <http://savannah.nongnu.org/bugs/?44225>

                 Summary: closing TCP socket should time out eventually
                 Project: lwIP - A Lightweight TCP/IP stack
            Submitted by: goldsimon
            Submitted on: Di 10 Feb 2015 21:01:49 GMT
                Category: sockets/netconn
                Severity: 3 - Normal
              Item Group: Faulty Behaviour
                  Status: In Progress
                 Privacy: Public
             Assigned to: goldsimon
             Open/Closed: Open
         Discussion Lock: Any
         Planned Release: 
            lwIP version: git head

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Details:

There are currently (rare) situations where closing TCP sockets can need long
or never finish because on memory error or when the remote host never ACKs the
last segment, close is just retried forever (in the tcp poll callback).

There should be a timeout on this, I read about ~20 seconds in other
implementations.




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