[New-bugs-announce] [issue26810] inconsistent garbage collector behavior across platforms when using ctypes data-structures

[unsec treedee]

New submission from unsec treedee:

The garbage collector is not behaving consistently across platforms for python 2.7.11.

I realize that the example code and style is not proper :-)

On the Mac OSX platform this code runs without the garbage collector "cleaning house" and there is no resulting crash from a NULL pointer.  On the Linux platform the garbage collector decides to "clean house" (deallocates the object) resulting in a NULL pointer which is not handled correctly by the c-function code (some legacy stuff) and causes a segmentation fault.

Temporarily disabling the garbage collector and enabling it later on allows a workaround (valid or not) that is consistent on all platforms.

Improper coding and style aside... the issue I am reporting is the inconsistent behaviour of the garbage collector.  I am looking for consistency across platforms (same result on all platforms).  :-)

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components: ctypes
files: gc_snippet_report_pybug.py
messages: 263846
nosy: unsec treedee
priority: normal
severity: normal
status: open
title: inconsistent garbage collector behavior across platforms when using ctypes data-structures
type: behavior
versions: Python 2.7
Added file: http://bugs.python.org/file42539/gc_snippet_report_pybug.py

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue26810>
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