From d4c246fa0c4648add857bea8693b280a616aaeef Mon Sep 17 00:00:00 2001
From: AskaEth <i@yeij.top>
Date: Sun, 28 Jun 2026 17:07:24 +0800
Subject: [PATCH] =?UTF-8?q?fix:=20=E7=A7=BB=E9=99=A4=E6=9C=89=E9=97=AE?=
 =?UTF-8?q?=E9=A2=98=E7=9A=84runtime.SetFinalizer?=
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---
 backend/ai-core/internal/background/thinker.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/backend/ai-core/internal/background/thinker.go b/backend/ai-core/internal/background/thinker.go
index c8ed50f..2a2ca3c 100644
--- a/backend/ai-core/internal/background/thinker.go
+++ b/backend/ai-core/internal/background/thinker.go
@@ -2661,6 +2661,10 @@ func (t *Thinker) muLock() {
 
 // muUnlock releases t.mu and clears the tracking.
 func (t *Thinker) muUnlock() {
+	held := time.Since(t.muLockedAt)
+	if held > 5*time.Second {
+		log.Printf("[debug] muUnlock: lock held for %v by %s", held.Round(time.Millisecond), t.muLockedBy)
+	}
 	t.muLockedBy = ""
 	t.mu.Unlock()
 }