Merged revisions 64309 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r64309 | amaury.forgeotdarc | 2008-06-16 21:12:42 +0200 (lun., 16 juin 2008) | 8 lines

  Issue 3110: Crash with weakref subclass,
  seen after a "import multiprocessing.reduction"

  An instance of a weakref subclass can have attributes.
  If such a weakref holds the only strong reference to the object,
  deleting the weakref will delete the object. In this case,
  the callback must not be called, because the ref object is being deleted!
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diff --git a/Misc/NEWS b/Misc/NEWS
index 4408b79..07c5edd 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -12,6 +12,9 @@
 Core and Builtins
 -----------------
 
+- Issue #3100: Corrected a crash on deallocation of a subclassed weakref which
+  holds the last (strong) reference to its referent.
+
 - Issue #2630: implement PEP 3138. repr() now returns printable
   Unicode characters unescaped, to get an ASCII-only representation
   of an object use ascii().