Date: Fri, 24 Jan 2020 14:19:54 -0800
From: ianswett <notifications@github.com>
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Subject: Re: [quicwg/base-drafts] Discarding Initial context too soon leads to
 deadlock (#3395)
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In that case, the recovery draft says:
"Since the server could be blocked until more packets are received from the client, it is the client's responsibility to send packets to unblock the server until it is certain that the server has finished its address validation (see Section 8 of {{QUIC-TRANSPORT}}). That is, the client MUST set the probe timer if the client has not received an acknowledgement for one of its Handshake or 1-RTT packets."

So in this case, the client should keep sending Handshake packets and if one is received, it'll unblock the server.

There's also the alternate solution to the amplification/deadlock issue I documented in #3161 and #3162

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<p>In that case, the recovery draft says:<br>
"Since the server could be blocked until more packets are received from the client, it is the client's responsibility to send packets to unblock the server until it is certain that the server has finished its address validation (see Section 8 of {{QUIC-TRANSPORT}}). That is, the client MUST set the probe timer if the client has not received an acknowledgement for one of its Handshake or 1-RTT packets."</p>
<p>So in this case, the client should keep sending Handshake packets and if one is received, it'll unblock the server.</p>
<p>There's also the alternate solution to the amplification/deadlock issue I documented in <a class="issue-link js-issue-link" data-error-text="Failed to load issue title" data-id="513450382" data-permission-text="Issue title is private" data-url="https://github.com/quicwg/base-drafts/issues/3161" data-hovercard-type="issue" data-hovercard-url="/quicwg/base-drafts/issues/3161/hovercard" href="https://github.com/quicwg/base-drafts/issues/3161">#3161</a> and <a class="issue-link js-issue-link" data-error-text="Failed to load issue title" data-id="513467968" data-permission-text="Issue title is private" data-url="https://github.com/quicwg/base-drafts/issues/3162" data-hovercard-type="pull_request" data-hovercard-url="/quicwg/base-drafts/pull/3162/hovercard" href="https://github.com/quicwg/base-drafts/pull/3162">#3162</a></p>

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