Bugs item #1215928, was opened at 2005-06-06 14:19
Message generated for change (Comment added) made by rhettinger
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Category: Python Library
Group: Python 2.4
Status: Open
Resolution: None
Priority: 5
Submitted By: Tom Emerson (tree)
>Assigned to: Reinhold Birkenfeld (birkenfeld)
Summary: Large tarfiles cause overflow
Initial Comment:
I have a 4 gigabyte bz2 compressed tarfile containing some 3.3
million documents. I have a script which opens this file with "r:bz2"
and is simply iterating over the contents using next(). With 2.4.1 I
still get an Overflow error (originally tried with 2.3.5 as packaged in
Mac OS 10.4.1):
Traceback (most recent call last):
File "extract_part.py", line 47, in ?
main(sys.argv)
File "extract_part.py", line 39, in main
pathnames = find_valid_paths(argv[1], 1024, count)
File "extract_part.py", line 13, in find_valid_paths
f = tf.next()
File "/usr/local/lib/python2.4/tarfile.py", line 1584, in next
self.fileobj.seek(self.offset)
OverflowError: long int too large to convert to int
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>Comment By: Raymond Hettinger (rhettinger)
Date: 2005-06-12 20:32
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Is there a way to write a test for this?
Can it be done without a conditional compile?
Is the problem one that occurs in other code outside of bz?
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Comment By: Reinhold Birkenfeld (birkenfeld)
Date: 2005-06-10 06:45
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Attaching corrected patch.
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Comment By: Reinhold Birkenfeld (birkenfeld)
Date: 2005-06-09 15:31
Message:
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Attaching a patch which mimics the behaviour of normal file
objects. This should resolve the issue on platforms with
large file support.
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Comment By: Lars Gustäbel (gustaebel)
Date: 2005-06-07 08:23
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A quick look at the problem reveals that this is a bug in
bz2.BZ2File. The seek() method does not allow position
values >= 2GiB.
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