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-rw-r--r--src/runtime/chan.go1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/runtime/chan.go b/src/runtime/chan.go
index 0049701826..0eb87df74f 100644
--- a/src/runtime/chan.go
+++ b/src/runtime/chan.go
@@ -630,6 +630,7 @@ func (q *waitq) dequeue() *sudog {
return nil
}
q.first = sgp.next
+ sgp.next = nil
if q.last == sgp {
q.last = nil
}