From ecd928544474d0c69954317df3a4859023ec9c9d Mon Sep 17 00:00:00 2001
From: Andrey Kleshchev <117672381+akleshchev@users.noreply.github.com>
Date: Wed, 19 Aug 2026 23:50:45 +0300
Subject: #6157 Crash at LLParticlePartition::getGeometry

---
 indra/llplugin/llpluginprocessparent.cpp | 11 +++++++++++
 1 file changed, 11 insertions(+)

(limited to 'indra/llplugin/llpluginprocessparent.cpp')

diff --git a/indra/llplugin/llpluginprocessparent.cpp b/indra/llplugin/llpluginprocessparent.cpp
index 4f55d75e7d..2029497790 100644
--- a/indra/llplugin/llpluginprocessparent.cpp
+++ b/indra/llplugin/llpluginprocessparent.cpp
@@ -508,6 +508,16 @@ void LLPluginProcessParent::idle(void)
                     else if (!mProcess && !mProcessCreationRequested)
                     {
                         mProcessCreationRequested = true;
+#if LL_DARWIN
+                        // On darwin process should be created from main thread, otherwise it can
+                        // cause a fork-lock deadlock. Relevant to both, boost and apr.
+                        // Alternatively can remake process creation to use posix_spawn
+                        if (!(mProcess = LLProcess::create(mProcessParams)))
+                        {
+                            mProcessCreationRequested = false;
+                            errorState();
+                        }
+#else
                         LL::WorkQueue::ptr_t main_queue = LL::WorkQueue::getInstance("mainloop");
                         // *NOTE: main_queue->postTo casts this refcounted smart pointer to a weak
                         // pointer
@@ -558,6 +568,7 @@ void LLPluginProcessParent::idle(void)
                                 errorState();
                             }
                         }
+#endif
                     }
 
                     if (mProcess)
-- 
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