[Python-bugs-list] [ python-Bugs-600007 ] Another dealloc stack killer

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Bugs item #600007, was opened at 2002-08-25 21:37
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=105470&aid=600007&group_id=5470

Category: Python Interpreter Core
Group: None
Status: Open
Resolution: None
Priority: 3
Submitted By: Tim Peters (tim_one)
Assigned to: Guido van Rossum (gvanrossum)
Summary: Another dealloc stack killer

Initial Comment:
>From c.l.py:

"""
From: Pavel Pergamenshchik <pp64@cornell.edu>
Sent: Sunday, August 25, 2002 9:17 PM
To: python-list@python.org
Subject: Python 2.2.1 bug

I found a way to break Python 2.2.1 (at least) both on 
Linux and Windows.
...

eval("int" + ".__call__"*100000)

at the prompt, then press ctrl-D or ctrl-Z to edit. This 
will result in a segfault on Linux and some 
weird "unknown software exception" thing on Windows.
"""

At shutdown, the C stack is blown by a very deep 
nest of

_Py_Dealloc
wrapper_dealloc

calls.  That was under current CVS head; I'm sure it's 
the same deal in 2.2.

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>Comment By: Tim Peters (tim_one)
Date: 2002-08-26 10:06

Message:
Logged In: YES 
user_id=31435

I suppose you need to reduce your stack limit, or boost the 
multiplier, then.  I would agree it's hard to get excited 
about this one <wink>.

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Comment By: Guido van Rossum (gvanrossum)
Date: 2002-08-26 09:56

Message:
Logged In: YES 
user_id=6380

Hm, I cannot reproduce this on Linux, with either the
2.2maintenance branch or 2.3. I trust that it's a problem
though. Reducing priority.

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You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=105470&aid=600007&group_id=5470