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-rw-r--r--Python/marshal.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/Python/marshal.c b/Python/marshal.c
index e23daf6..6d06266 100644
--- a/Python/marshal.c
+++ b/Python/marshal.c
@@ -25,8 +25,14 @@ module marshal
* and risks coring the interpreter. When the object stack gets this deep,
* raise an exception instead of continuing.
* On Windows debug builds, reduce this value.
+ *
+ * BUG: https://bugs.python.org/issue33720
+ * On Windows PGO builds, the r_object function overallocates its stack and
+ * can cause a stack overflow. We reduce the maximum depth for all Windows
+ * releases to protect against this.
+ * #if defined(MS_WINDOWS) && defined(_DEBUG)
*/
-#if defined(MS_WINDOWS) && defined(_DEBUG)
+#if defined(MS_WINDOWS)
#define MAX_MARSHAL_STACK_DEPTH 1000
#else
#define MAX_MARSHAL_STACK_DEPTH 2000