From 4ef9f8f14b35ed388c294d53767a0dca0e890924 Mon Sep 17 00:00:00 2001
From: Andrey Kleshchev <117672381+akleshchev@users.noreply.github.com>
Date: Tue, 25 Aug 2026 22:15:09 +0300
Subject: #6109 StopRecording() crash

---
 indra/llwebrtc/llwebrtc.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/indra/llwebrtc/llwebrtc.cpp b/indra/llwebrtc/llwebrtc.cpp
index b33cb054d4..5b322d1b5d 100644
--- a/indra/llwebrtc/llwebrtc.cpp
+++ b/indra/llwebrtc/llwebrtc.cpp
@@ -892,7 +892,9 @@ void LLWebRTCImpl::updateDevices()
 
 void LLWebRTCImpl::OnDevicesUpdated()
 {
-    updateDevices();
+    // OnDevicesUpdated() is called on macOS CoreAudio's device-change callback
+    // thread.  Calling updateDevices() on that thread causes a deadlock.
+    mWorkerThread->PostTask([this] { updateDevices(); });
 }
 
 
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