2 files changed, 7 insertions, 1 deletions
diff --git a/indra/llrender/llimagegl.cpp b/indra/llrender/llimagegl.cpp
index 1b6920fe3b..eda61d3c74 100644
--- a/indra/llrender/llimagegl.cpp
+++ b/indra/llrender/llimagegl.cpp
@@ -2257,6 +2257,7 @@ LLImageGLThread::LLImageGLThread(LLWindow* window)
     : ThreadPool("LLImageGL", 1, 1024*1024)
     , mWindow(window)
 {
+    LL_PROFILE_ZONE_SCOPED;
     mFinished = false;
 
     mContext = mWindow->createSharedContext();
@@ -2264,8 +2265,13 @@ LLImageGLThread::LLImageGLThread(LLWindow* window)
 
 void LLImageGLThread::run()
 {
+    LL_PROFILE_ZONE_SCOPED;
     // We must perform setup on this thread before actually servicing our
     // WorkQueue, likewise cleanup afterwards.
+    while (mContext == nullptr)
+    { // HACK -- wait for mContext to be initialized since this thread will usually start before mContext is set
+        std::this_thread::sleep_for(std::chrono::milliseconds(1));
+    }
     mWindow->makeContextCurrent(mContext);
     gGL.init();
     ThreadPool::run();
diff --git a/indra/llrender/llimagegl.h b/indra/llrender/llimagegl.h
index 27496def1d..ae773bb362 100644
--- a/indra/llrender/llimagegl.h
+++ b/indra/llrender/llimagegl.h
@@ -324,7 +324,7 @@ public:
 
 private:
     LLWindow* mWindow;
-    void* mContext;
+    void* mContext = nullptr;
     LLAtomicBool mFinished;
 };