From 33883c04e4272a2c1e43d5a55ba7fe3eefdeb2bd Mon Sep 17 00:00:00 2001
From: Matt Joiner <anacrolix@gmail.com>
Date: Mon, 20 Sep 2021 14:16:55 +1000
Subject: [PATCH] Filter next requests application for peer state changes

---
 requesting.go | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/requesting.go b/requesting.go
index 7e42baba..3d29d481 100644
--- a/requesting.go
+++ b/requesting.go
@@ -132,6 +132,11 @@ func (p *Peer) applyNextRequestState() bool {
 		}
 	}
 	for req := range next.Requests {
+		// This could happen if the peer chokes us between the next state being generated, and us
+		// trying to transmit the state.
+		if p.peerChoking && !p.peerAllowedFast.Contains(bitmap.BitIndex(req.Index)) {
+			continue
+		}
 		more, err := p.request(req)
 		if err != nil {
 			panic(err)
-- 
2.44.0