From b0aa4ae2de488a66ab507b85fdeb93843d107b6c Mon Sep 17 00:00:00 2001
From: yyforyongyu <yong2452@gmail.com>
Date: Wed, 18 Jun 2025 17:10:47 +0800
Subject: [PATCH] chainio: use package logger instead of instance logger

There's no guarantee that the `b.beat` is initialized when the
dispatcher shuts down, especially with the case in the remote signer
where no chainbackend is created.
---
 chainio/dispatcher.go                      | 8 ++++++++
 docs/release-notes/release-notes-0.19.2.md | 3 +++
 2 files changed, 11 insertions(+)

diff --git a/chainio/dispatcher.go b/chainio/dispatcher.go
index f1fce35b5..0d56752b8 100644
--- a/chainio/dispatcher.go
+++ b/chainio/dispatcher.go
@@ -135,6 +135,14 @@ func (b *BlockbeatDispatcher) Stop() {
 }
 
 func (b *BlockbeatDispatcher) log() btclog.Logger {
+	// There's no guarantee that the `b.beat` is initialized when the
+	// dispatcher shuts down, especially in the case where the node is
+	// running as a remote signer, which doesn't have a chainbackend. In
+	// that case we will use the package logger.
+	if b.beat == nil {
+		return clog
+	}
+
 	return b.beat.logger()
 }
 
diff --git a/docs/release-notes/release-notes-0.19.2.md b/docs/release-notes/release-notes-0.19.2.md
index 40f05624a..4cf16724c 100644
--- a/docs/release-notes/release-notes-0.19.2.md
+++ b/docs/release-notes/release-notes-0.19.2.md
@@ -26,6 +26,9 @@
 - [Fixed](https://github.com/lightningnetwork/lnd/pull/9921) a case where the
   spending notification of an output may be missed if wrong height hint is used.
 
+- [Fixed](https://github.com/lightningnetwork/lnd/pull/9962) a case where the
+  node may panic if it's running in the remote signer mode.
+
 # New Features
 
 ## Functional Enhancements