As I threatened on python-dev, add a directory which contains all known
bugs which cause the interpreter to crash.  I'm sure we can find a few
more.  Many missing bugs deal with variations on unchecked infinite recursion
(like coerce.py).
diff --git a/Lib/test/crashers/README b/Lib/test/crashers/README
new file mode 100644
index 0000000..9369282
--- /dev/null
+++ b/Lib/test/crashers/README
@@ -0,0 +1,15 @@
+This directory only contains tests for outstanding bugs that cause
+the interpreter to segfault.  Ideally this directory should always
+be empty.  Sometimes it may not be easy to fix the underlying cause.
+
+Each test should fail when run from the command line:
+
+	./python Lib/test/crashers/weakref_in_del.py
+
+Each test should have a link to the bug report:
+
+	# http://python.org/sf/BUG#
+
+Put as much info into a docstring or comments to help determine
+the cause of the failure.  Particularly note if the cause is
+system or environment dependent and what the variables are.