Merge tag 'Second_Life_Release#de9a9111-2026.01' into 2026.01

1 files changed, 23 insertions, 5 deletions

diff --git a/indra/newview/llappviewer.cpp b/indra/newview/llappviewer.cpp
index d59bfe2118..d4e9736f61 100644
--- a/indra/newview/llappviewer.cpp
+++ b/indra/newview/llappviewer.cpp
@@ -1262,7 +1262,7 @@ bool LLAppViewer::init()
 
     /*----------------------------------------------------------------------*/
     // nat 2016-06-29 moved the following here from the former mainLoop().
-    mMainloopTimeout = new LLWatchdogTimeout();
+    mMainloopTimeout = new LLWatchdogTimeout("mainloop");
 
     // Create IO Pump to use for HTTP Requests.
     gServicePump = new LLPumpIO(gAPRPoolp);
@@ -1463,12 +1463,14 @@ bool LLAppViewer::doFrame()
 
             {
                 LL_PROFILE_ZONE_NAMED_CATEGORY_APP("df mainloop");
+                pingMainloopTimeout("df mainloop");
                 // canonical per-frame event
                 mainloop.post(newFrame);
             }
 
             {
                 LL_PROFILE_ZONE_NAMED_CATEGORY_APP("df suspend");
+                pingMainloopTimeout("df suspend");
                 // give listeners a chance to run
                 llcoro::suspend();
                 // if one of our coroutines threw an uncaught exception, rethrow it now
@@ -1504,6 +1506,7 @@ bool LLAppViewer::doFrame()
             {
                 {
                     LL_PROFILE_ZONE_NAMED_CATEGORY_APP("df pauseMainloopTimeout");
+                    pingMainloopTimeout("df idle"); // So that it will be aware of last state.
                     pauseMainloopTimeout(); // *TODO: Remove. Messages shouldn't be stalling for 20+ seconds!
                 }
 
@@ -1515,7 +1518,7 @@ bool LLAppViewer::doFrame()
 
                 {
                     LL_PROFILE_ZONE_NAMED_CATEGORY_APP("df resumeMainloopTimeout");
-                    resumeMainloopTimeout();
+                    resumeMainloopTimeout("df idle");
                 }
             }
 
@@ -1530,7 +1533,7 @@ bool LLAppViewer::doFrame()
                 }
 
                 disconnectViewer();
-                resumeMainloopTimeout();
+                resumeMainloopTimeout("df snapshot n disconnect");
             }
 
             // Render scene.
@@ -2362,7 +2365,22 @@ void errorHandler(const std::string& title_string, const std::string& message_st
     }
     if (!message_string.empty())
     {
-        OSMessageBox(message_string, title_string.empty() ? LLTrans::getString("MBFatalError") : title_string, OSMB_OK);
+        if (on_main_thread())
+        {
+            // Prevent watchdog from killing us while dialog is up.
+            // Can't do pauseMainloopTimeout, since this may be called
+            // from threads and we are not going to need watchdog now.
+            LLAppViewer::instance()->pauseMainloopTimeout();
+
+            // todo: might want to have non-crashing timeout for OOM cases
+            // and needs a way to pause main loop.
+            OSMessageBox(message_string, title_string.empty() ? LLTrans::getString("MBFatalError") : title_string, OSMB_OK);
+            LLAppViewer::instance()->resumeMainloopTimeout();
+        }
+        else
+        {
+            OSMessageBox(message_string, title_string.empty() ? LLTrans::getString("MBFatalError") : title_string, OSMB_OK);
+        }
     }
 }
 
@@ -5885,7 +5903,7 @@ void LLAppViewer::initMainloopTimeout(std::string_view state)
 {
     if (!mMainloopTimeout)
     {
-        mMainloopTimeout = new LLWatchdogTimeout();
+        mMainloopTimeout = new LLWatchdogTimeout("mainloop");
         resumeMainloopTimeout(state);
     }
 }