Subject: [quicwg/base-drafts] e49f5b: Prevent an unlikely deadlock

From: ianswett <[email-masked]>
Date: Sun, 04 Nov 2018 23:39:56 -0800

Branch: refs/heads/ianswett-tlp-deadlock
  Home:   https://github.com/quicwg/base-drafts
  Commit: e49f5b753daeb2740d3d1ed573d58bebbe053207
      https://github.com/quicwg/base-drafts/commit/e49f5b753daeb2740d3d1ed573d58bebbe053207
  Author: ianswett <[email-masked]>
  Date:   2018-11-05 (Mon, 05 Nov 2018)

  Changed paths:
    M draft-ietf-quic-recovery.md

  Log Message:
  -----------
  Prevent an unlikely deadlock

QUIC, unlike TCP, allows the connection to get into a situation where there could be packets in flight, and a connection could even be CWND limited, but there may not be any outstanding data to retransmit.

The suggested solution is to send a retransmittable frame.

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