Bugs item #1176467, was opened at 2005-04-04 16:29 Message generated for change (Comment added) made by nascheme You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=105470&aid=1176467&group_id=5470
Category: None Group: None >Status: Closed >Resolution: Invalid Priority: 5 Submitted By: Nathan Marushak (nmarushak) >Assigned to: Neil Schemenauer (nascheme) Summary: Python garbage collector isn't detecting deadlocks Initial Comment: BACKGROUND INFORMATION: Python version: Python 2.3.3 (#1, May 7 2004, 10:31:40) Operating System: Linux 2.6.7-1.494.2.2smp #1 SMP Tue Aug 3 09:59:49 EDT 2004 i686 i686 i386 GNU/Linux PROBLEM: The 2.3.3 garbage collector does not appear to detect deadlocks that occur when 2 objects reference one another. I checked the existing bug list, albeit briefly, to see if a similar bug had already been entered. I did not find an existing entry, but I apologize if this is a duplicate. I've attached a short example output file that demonstrates the issue. It would be beneficial if the "gc" module could detect when 2 objects have no other outstanding references except to one another. If modifying gc is not possible for some reason, then updating the Python gc documentation to illustrate this issue would be helpful. WORKAROUND: The problem can be worked around by ensuring each object removes the circular reference when it no longer needs to refer to the other object. ---------------------------------------------------------------------- >Comment By: Neil Schemenauer (nascheme) Date: 2005-04-04 18:22 Message: Logged In: YES user_id=35752 The gc is working as intended and as documented. Please refer to the gc module documentation, especially the section on the "garbage" attribute. Your objects are not collected because they have __del__ methods. ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=105470&aid=1176467&group_id=5470 _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
