cStringIO.StringIO aborted when more then INT_MAX bytes written

[serhiy-storchaka]

BPO	17054
Nosy	@pitrou, @serhiy-storchaka
Superseder	bpo-7358: cStringIO not 64-bit safe

^{Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.}

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GitHub fields:

assignee = None
closed_at = <Date 2013-01-28.09:03:45.187>
created_at = <Date 2013-01-27.20:33:45.608>
labels = ['expert-IO', 'type-crash']
title = 'cStringIO.StringIO aborted when more then INT_MAX bytes written'
updated_at = <Date 2013-01-28.09:03:45.185>
user = 'https://github.com/serhiy-storchaka'

bugs.python.org fields:

activity = <Date 2013-01-28.09:03:45.185>
actor = 'serhiy.storchaka'
assignee = 'none'
closed = True
closed_date = <Date 2013-01-28.09:03:45.187>
closer = 'serhiy.storchaka'
components = ['IO']
creation = <Date 2013-01-27.20:33:45.608>
creator = 'serhiy.storchaka'
dependencies = []
files = []
hgrepos = []
issue_num = 17054
keywords = []
message_count = 3.0
messages = ['180790', '180791', '180840']
nosy_count = 2.0
nosy_names = ['pitrou', 'serhiy.storchaka']
pr_nums = []
priority = 'high'
resolution = 'duplicate'
stage = 'resolved'
status = 'closed'
superseder = '7358'
type = 'crash'
url = 'https://bugs.python.org/issue17054'
versions = ['Python 2.7']

[serhiy-storchaka]

Reproduced on x8 snakebite.

% ./python.exe 
Python 2.7.3+ (2.7:38a10d0778d2+, Jan 27 2013, 20:05:15) 
[GCC 4.2.1 (Based on Apple Inc. build 5658) (LLVM build 2336.11.00)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
Could not open PYTHONSTARTUP
IOError: [Errno 2] No such file or directory: '/Users/cpython/.pythonrc'
>>> from cStringIO import StringIO
[38179 refs]
>>> f = StringIO()
[38181 refs]
>>> s = 'x' * 2**30
[38183 refs]
>>> f.write(s)
[38183 refs]
>>> f.write(s)
Assertion failed: (oself->pos + l < INT_MAX), function O_cwrite, file /Users/cpython/hg/storchaka/Modules/cStringIO.c, line 421.
zsh: abort      ./python.exe

[pitrou]

Isn't is the same as bpo-7358?

[serhiy-storchaka]

Indeed.