report: generates report on threads with no isolates

PR-URL: https://github.com/nodejs/node/pull/38994
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: James M Snell <jasnell@gmail.com>

1 files changed, 11 insertions, 9 deletions

diff --git a/src/node_report.cc b/src/node_report.cc
index 0144d22c17d..f1d8d191ab0 100644
--- a/src/node_report.cc
+++ b/src/node_report.cc
@@ -272,20 +272,22 @@ static void WriteNodeReport(Isolate* isolate,
   PrintVersionInformation(&writer);
   writer.json_objectend();
 
-  writer.json_objectstart("javascriptStack");
-  // Report summary JavaScript error stack backtrace
-  PrintJavaScriptErrorStack(&writer, isolate, error, trigger);
+  if (isolate != nullptr) {
+    writer.json_objectstart("javascriptStack");
+    // Report summary JavaScript error stack backtrace
+    PrintJavaScriptErrorStack(&writer, isolate, error, trigger);
 
-  // Report summary JavaScript error properties backtrace
-  PrintJavaScriptErrorProperties(&writer, isolate, error);
-  writer.json_objectend();  // the end of 'javascriptStack'
+    // Report summary JavaScript error properties backtrace
+    PrintJavaScriptErrorProperties(&writer, isolate, error);
+    writer.json_objectend();  // the end of 'javascriptStack'
+
+    // Report V8 Heap and Garbage Collector information
+    PrintGCStatistics(&writer, isolate);
+  }
 
   // Report native stack backtrace
   PrintNativeStack(&writer);
 
-  // Report V8 Heap and Garbage Collector information
-  PrintGCStatistics(&writer, isolate);
-
   // Report OS and current thread resource usage
   PrintResourceUsage(&writer);