diff options
Diffstat (limited to 'Lib/test/crashers')
-rw-r--r-- | Lib/test/crashers/bogus_sre_bytecode.py | 47 | ||||
-rw-r--r-- | Lib/test/crashers/multithreaded_close.py | 14 |
2 files changed, 0 insertions, 61 deletions
diff --git a/Lib/test/crashers/bogus_sre_bytecode.py b/Lib/test/crashers/bogus_sre_bytecode.py deleted file mode 100644 index 7f006d9..0000000 --- a/Lib/test/crashers/bogus_sre_bytecode.py +++ /dev/null @@ -1,47 +0,0 @@ -""" -The regular expression engine in '_sre' can segfault when interpreting -bogus bytecode. - -It is unclear whether this is a real bug or a "won't fix" case like -bogus_code_obj.py, because it requires bytecode that is built by hand, -as opposed to compiled by 're' from a string-source regexp. The -difference with bogus_code_obj, though, is that the only existing regexp -compiler is written in Python, so that the C code has no choice but -accept arbitrary bytecode from Python-level. - -The test below builds and runs random bytecodes until 'match' crashes -Python. I have not investigated why exactly segfaults occur nor how -hard they would be to fix. Here are a few examples of 'code' that -segfault for me: - - [21, 50814, 8, 29, 16] - [21, 3967, 26, 10, 23, 54113] - [29, 23, 0, 2, 5] - [31, 64351, 0, 28, 3, 22281, 20, 4463, 9, 25, 59154, 15245, 2, - 16343, 3, 11600, 24380, 10, 37556, 10, 31, 15, 31] - -Here is also a 'code' that triggers an infinite uninterruptible loop: - - [29, 1, 8, 21, 1, 43083, 6] - -""" - -import _sre, random - -def pick(): - n = random.randrange(-65536, 65536) - if n < 0: - n &= 31 - return n - -ss = ["", "world", "x" * 500] - -while 1: - code = [pick() for i in range(random.randrange(5, 25))] - print(code) - pat = _sre.compile(None, 0, code) - for s in ss: - try: - pat.match(s) - except RuntimeError: - pass diff --git a/Lib/test/crashers/multithreaded_close.py b/Lib/test/crashers/multithreaded_close.py deleted file mode 100644 index f862d28..0000000 --- a/Lib/test/crashers/multithreaded_close.py +++ /dev/null @@ -1,14 +0,0 @@ -# f.close() is not thread-safe: calling it at the same time as another -# operation (or another close) on the same file, but done from another -# thread, causes crashes. The issue is more complicated than it seems, -# witness the discussions in: -# -# http://bugs.python.org/issue595601 -# http://bugs.python.org/issue815646 - -import _thread - -while 1: - f = open("multithreaded_close.tmp", "w") - _thread.start_new_thread(f.close, ()) - f.close() |