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authorNeal Norwitz <nnorwitz@gmail.com>2006-01-10 07:49:41 (GMT)
committerNeal Norwitz <nnorwitz@gmail.com>2006-01-10 07:49:41 (GMT)
commit8cc4ef561c1ba8f36520396c6f631764b55f4643 (patch)
treeeddaba777527be8e2cf2a95996c5daef52ddfe48
parent88bbd73d0763bb4df48d45791dafbef76c2e17a5 (diff)
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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).
-rw-r--r--Lib/test/crashers/README15
-rw-r--r--Lib/test/crashers/coerce.py9
-rw-r--r--Lib/test/crashers/weakref_in_del.py17
-rw-r--r--Lib/test/crashers/xml_parsers.py56
4 files changed, 97 insertions, 0 deletions
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.
diff --git a/Lib/test/crashers/coerce.py b/Lib/test/crashers/coerce.py
new file mode 100644
index 0000000..574956b
--- /dev/null
+++ b/Lib/test/crashers/coerce.py
@@ -0,0 +1,9 @@
+
+# http://python.org/sf/992017
+
+class foo:
+ def __coerce__(self, other):
+ return other, self
+
+if __name__ == '__main__':
+ foo()+1 # segfault: infinite recursion in C
diff --git a/Lib/test/crashers/weakref_in_del.py b/Lib/test/crashers/weakref_in_del.py
new file mode 100644
index 0000000..d00937f
--- /dev/null
+++ b/Lib/test/crashers/weakref_in_del.py
@@ -0,0 +1,17 @@
+import weakref
+
+# http://python.org/sf/1377858
+
+ref = None
+
+def test_weakref_in_del():
+ class Target(object):
+ def __del__(self):
+ global ref
+ ref = weakref.ref(self)
+
+ w = Target()
+
+if __name__ == '__main__':
+ test_weakref_in_del()
+
diff --git a/Lib/test/crashers/xml_parsers.py b/Lib/test/crashers/xml_parsers.py
new file mode 100644
index 0000000..89db5c9
--- /dev/null
+++ b/Lib/test/crashers/xml_parsers.py
@@ -0,0 +1,56 @@
+from xml.parsers import expat
+
+# http://python.org/sf/1296433
+
+def test_parse_only_xml_data():
+ #
+ xml = "<?xml version='1.0' encoding='iso8859'?><s>%s</s>" % ('a' * 1025)
+ # this one doesn't crash
+ #xml = "<?xml version='1.0'?><s>%s</s>" % ('a' * 10000)
+
+ def handler(text):
+ raise Exception
+
+ parser = expat.ParserCreate()
+ parser.CharacterDataHandler = handler
+
+ try:
+ parser.Parse(xml)
+ except:
+ pass
+
+if __name__ == '__main__':
+ test_parse_only_xml_data()
+
+# Invalid read of size 4
+# at 0x43F936: PyObject_Free (obmalloc.c:735)
+# by 0x45A7C7: unicode_dealloc (unicodeobject.c:246)
+# by 0x1299021D: PyUnknownEncodingHandler (pyexpat.c:1314)
+# by 0x12993A66: processXmlDecl (xmlparse.c:3330)
+# by 0x12999211: doProlog (xmlparse.c:3678)
+# by 0x1299C3F0: prologInitProcessor (xmlparse.c:3550)
+# by 0x12991EA3: XML_ParseBuffer (xmlparse.c:1562)
+# by 0x1298F8EC: xmlparse_Parse (pyexpat.c:895)
+# by 0x47B3A1: PyEval_EvalFrameEx (ceval.c:3565)
+# by 0x47CCAC: PyEval_EvalCodeEx (ceval.c:2739)
+# by 0x47CDE1: PyEval_EvalCode (ceval.c:490)
+# by 0x499820: PyRun_SimpleFileExFlags (pythonrun.c:1198)
+# by 0x4117F1: Py_Main (main.c:492)
+# by 0x12476D1F: __libc_start_main (in /lib/libc-2.3.5.so)
+# by 0x410DC9: (within /home/neal/build/python/svn/clean/python)
+# Address 0x12704020 is 264 bytes inside a block of size 592 free'd
+# at 0x11B1BA8A: free (vg_replace_malloc.c:235)
+# by 0x124B5F18: (within /lib/libc-2.3.5.so)
+# by 0x48DE43: find_module (import.c:1320)
+# by 0x48E997: import_submodule (import.c:2249)
+# by 0x48EC15: load_next (import.c:2083)
+# by 0x48F091: import_module_ex (import.c:1914)
+# by 0x48F385: PyImport_ImportModuleEx (import.c:1955)
+# by 0x46D070: builtin___import__ (bltinmodule.c:44)
+# by 0x4186CF: PyObject_Call (abstract.c:1777)
+# by 0x474E9B: PyEval_CallObjectWithKeywords (ceval.c:3432)
+# by 0x47928E: PyEval_EvalFrameEx (ceval.c:2038)
+# by 0x47CCAC: PyEval_EvalCodeEx (ceval.c:2739)
+# by 0x47CDE1: PyEval_EvalCode (ceval.c:490)
+# by 0x48D0F7: PyImport_ExecCodeModuleEx (import.c:635)
+# by 0x48D4F4: load_source_module (import.c:913)