From: Kumar Aditya <kumaraditya@python.org>
Date: Wed, 16 Apr 2025 00:40:56 +0000 (+0530)
Subject: gh-132070: add `PyObject_Realloc` suppression in free-threading (#132468)
X-Git-Tag: v3.14.0b1~461
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=4b15d105a2b954cce2d97646ebf9e672d3a23b45;p=thirdparty%2FPython%2Fcpython.git

gh-132070: add `PyObject_Realloc` suppression in free-threading (#132468)
---

diff --git a/Tools/tsan/suppressions_free_threading.txt b/Tools/tsan/suppressions_free_threading.txt
index b0d64d369969..21224e490b81 100644
--- a/Tools/tsan/suppressions_free_threading.txt
+++ b/Tools/tsan/suppressions_free_threading.txt
@@ -43,3 +43,7 @@ race_top:rangeiter_next
 # of ptr-sized copies to be thread-safe. (Issue #129069)
 race:list_ass_slice_lock_held
 race:list_inplace_repeat_lock_held
+
+# PyObject_Realloc internally does memcpy which isn't atomic so can race
+# with non-locking reads. See #132070
+race:PyObject_Realloc
\ No newline at end of file