[2.7] bpo-37329: valgrind: ignore _PyWarnings_Init false alarms (GH-14202)

_PyWarnings_Init() only allocates memory once at startup but it is
not released at exit. Ignore this issue to be able to catch other
bugs more easily.

diff --git a/Misc/NEWS.d/next/Core and Builtins/2019-06-18-15-08-32.bpo-37329.7XVDRv.rst b/Misc/NEWS.d/next/Core and Builtins/2019-06-18-15-08-32.bpo-37329.7XVDRv.rst
new file mode 100644 (file)
index 0000000..faae4f6
--- /dev/null
+++ b/Misc/NEWS.d/next/Core and Builtins/2019-06-18-15-08-32.bpo-37329.7XVDRv.rst
@@ -0,0 +1,3 @@
+valgrind: suppress a false alarm in memory leak checks. _PyWarnings_Init()
+only allocates memory once at startup but it is not released at exit. Ignore
+this issue to be able to catch other bugs more easily.

diff --git a/Misc/valgrind-python.supp b/Misc/valgrind-python.supp
index a7e26506cfdd4f39f4e4030f4b92d3cc1d609c7a..01ee041eb283f7e049cb9763b47d54261c19d81e 100644 (file)
--- a/Misc/valgrind-python.supp
+++ b/Misc/valgrind-python.supp
@@ -103,6 +103,14 @@
    fun:COMMENT_THIS_LINE_TO_DISABLE_LEAK_WARNING
 }
 
+{
+   bpo-37329: _PyWarnings_Init allocates memory at startup, but doesn't release it at exit
+   Memcheck:Leak
+   fun:malloc
+   ...
+   fun:_PyWarnings_Init
+}
+
 #
 # Non-python specific leaks
 #