[Python-checkins] python/dist/src/Misc NEWS,1.1155,1.1156

[tim_one at users.sourceforge.net]

Update of /cvsroot/python/python/dist/src/Misc
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv30086/Misc

Modified Files:
	NEWS 
Log Message:
PyInterpreterState_New(), PyThreadState_New():  use malloc/free directly.

This appears to finish repairs for SF bug 1041645.

This is a critical bugfix.


Index: NEWS
===================================================================
RCS file: /cvsroot/python/python/dist/src/Misc/NEWS,v
retrieving revision 1.1155
retrieving revision 1.1156
diff -u -d -r1.1155 -r1.1156
--- NEWS	10 Oct 2004 01:58:39 -0000	1.1155
+++ NEWS	10 Oct 2004 02:47:33 -0000	1.1156
@@ -136,6 +136,16 @@
 C API
 -----
 
+- The C API calls ``PyInterpreterState_New()`` and ``PyThreadState_New()``
+  are two of the very few advertised as being safe to call without holding
+  the GIL.  However, this wasn't true in a debug build, as bug 1041645
+  demonstrated.  In a debug build, Python redirects the ``PyMem`` family
+  of calls to Python's small-object allocator, to get the benefit of
+  its extra debugging capabilities.  But Python's small-object allocator
+  isn't threadsafe, relying on the GIL to avoid the expense of doing its
+  own locking.  ``PyInterpreterState_New()`` and ``PyThreadState_New()``
+  call the platform ``malloc()`` directly now, regardless of build type.
+
 - PyLong_AsUnsignedLong[Mask] now support int objects as well.
 
 - SF patch #998993: ``PyUnicode_DecodeUTF8Stateful`` and