[issue9526] 2 GB limit in array module

2010-08-10 Thread Mark Dickinson 

Mark Dickinson dicki...@gmail.com added the comment:

Thanks for confirming, Stefan.

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[issue9526] 2 GB limit in array module

2010-08-08 Thread Stefan Krah 

Stefan Krah stefan-use...@bytereef.org added the comment:

Tested on an 8GB machine. This is fixed.

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nosy: +skrah
status: pending - open

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[issue9526] 2 GB limit in array module

2010-08-08 Thread Stefan Krah 

Changes by Stefan Krah stefan-use...@bytereef.org:


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status: open - pending

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[issue9526] 2 GB limit in array module

2010-08-08 Thread Benjamin Peterson 

Changes by Benjamin Peterson benja...@python.org:


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status: pending - closed

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[issue9526] 2 GB limit in array module

2010-08-06 Thread Mark Dickinson 

Mark Dickinson dicki...@gmail.com added the comment:

Thanks for the report.  Also applies to 3.1 and 3.2 (and 2.6, but it's too late 
to fix things there).  I agree that those (int) casts look wrong---I suspect 
they're leftovers from the big int - Py_ssize_t switch that happened for 
Python 2.5.

I've removed the casts in svn revisions 83751 through 83754.  Unfortunately, 
right now I don't have access to a machine with enough memory to test that this 
fixes the problem.  Martin, would you be able to check this?  You'll need a 
Python svn checkout if you don't already have one;  instructions for getting it 
are at http://python.org/dev

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assignee:  - mark.dickinson
nosy: +mark.dickinson
resolution:  - fixed
status: open - pending
versions: +Python 3.1, Python 3.2

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[issue9526] 2 GB limit in array module

2010-08-05 Thread Martin Frith 

New submission from Martin Frith mar...@cbrc.jp:

The array module does not seem to work for arrays  2 GB.

 import sys, array
 sys.maxsize
9223372036854775807
 x = array.array('c', ('a' for i in xrange(3)))
(seems to work OK)
 x = array.array('c', ('a' for i in xrange(30)))
(runs forever: memory usage increases to 2GB and then stops)

I think the cause is: casting to int in arraymodule.c, in array_iter_extend() 
and array_append().

My uname -a:
Linux c016 2.6.18-164.el5 #1 SMP Thu Sep 3 03:28:30 EDT 2009 x86_64 x86_64 
x86_64 GNU/Linux

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components: Extension Modules
messages: 113061
nosy: mcfrith
priority: normal
severity: normal
status: open
title: 2 GB limit in array module
type: behavior
versions: Python 2.7

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