check monitor is owning for debug

ruby · Nov 11, 2019 · a815053 · a815053
1 parent 99be207
commit a815053
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/lib/rubygems/core_ext/kernel_require.rb b/lib/rubygems/core_ext/kernel_require.rb
@@ -157,6 +157,11 @@ def require(path)
     return gem_original_require(path) if require_again
 
     raise load_error
+  ensure
+    if RUBYGEMS_ACTIVATION_MONITOR.mon_owned?
+      pp $!
+      raise "CRITICAL: RUBYGEMS_ACTIVATION_MONITOR is holding."
+    end
   end
 
   private :require