From cc4e6de5c4a907834de28ee13a0f6b5c8c68a882 Mon Sep 17 00:00:00 2001
From: Victor Stinner <vstinner@python.org>
Date: Fri, 15 Sep 2023 01:10:17 +0200
Subject: [PATCH] Add comment

---
 Lib/test/libregrtest/run_workers.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Lib/test/libregrtest/run_workers.py b/Lib/test/libregrtest/run_workers.py
index fc677bfb4c175bc..89cc50b7c158d27 100644
--- a/Lib/test/libregrtest/run_workers.py
+++ b/Lib/test/libregrtest/run_workers.py
@@ -218,6 +218,9 @@ def create_stdout(self, stack: contextlib.ExitStack) -> TextIO:
 
         # gh-94026: Write stdout+stderr to a tempfile as workaround for
         # non-blocking pipes on Emscripten with NodeJS.
+        # gh-109425: Use "backslashreplace" error handler: log corrupted
+        # stdout+stderr, instead of failing with a UnicodeDecodeError and not
+        # logging stdout+stderr at all.
         stdout_file = tempfile.TemporaryFile('w+',
                                              encoding=encoding,
                                              errors='backslashreplace')