Issue #21901: Cap the maximum number of file descriptors to use for the test.

diff --git a/Lib/test/test_selectors.py b/Lib/test/test_selectors.py
index 34edd7630ddd89ac68eee60f7ea50f45894597e0..46026be0aa60bb972cbfa0c3c246f1be5cbbd9d0 100644 (file)
--- a/Lib/test/test_selectors.py
+++ b/Lib/test/test_selectors.py
@@ -378,7 +378,7 @@ class ScalableSelectorMixIn:
             resource.setrlimit(resource.RLIMIT_NOFILE, (hard, hard))
             self.addCleanup(resource.setrlimit, resource.RLIMIT_NOFILE,
                             (soft, hard))
-            NUM_FDS = hard
+            NUM_FDS = min(hard, 2**16)
         except (OSError, ValueError):
             NUM_FDS = soft