Python 2.2.3 test_re.py fails with coredump on FreeBSD 5.0, fails also on FreeBSD4.8

[Harald Schneider]

import pre as re

is a practical workaround for most appliacations on the FreeBSD platform.

--Harald


"PieterB" <pieterb at gewis.nl> schrieb im Newsbeitrag
news:2251d03c.0306211009.2596e9fd at posting.google.com...
> Ok,
>
> I had a little look at testing Python 2.2.3 under FreeBSD and
> 5.0. When I use './configure ; make ; make test' Lib/test/test_re.py
> gives a Signal 10 (coredump) on FreeBSD5. The test coredumps because
> of the following test from Lib/test/test_re.py:
>
> <code>
> if verbose:
>     print 'Test engine limitations'
>
> # Try nasty case that overflows the straightforward recursive
> # implementation of repeated groups.
> try:
>     verify(re.match('(x)*', 50000*'x').span() == (0, 50000))
> except RuntimeError, v:
>     print v
> </code>
>
> On FreeBSD 4.8 this test also fails, but doesn't core dump:
> %python2.2.3 test_re.py
> Running tests on re.search and re.match
> Running tests on re.sub
> Running tests on symbolic references
> Running tests on re.subn
> Running tests on re.split
> Running tests on re.findall
> Running tests on re.match
> Running tests on re.escape
> Pickling a RegexObject instance
> Test engine limitations
> maximum recursion limit exceeded
> Running re_tests test suite
> === Failed incorrectly ('(?u)\\w', u'\xc4', 0, 'found', u'\xc4')
>
> Can anybody, give me a clue:
> a) if this is caused by a FreeBSD5.0 issue, or by Python.
>    Can somebody test this on FreeBSD 5.1 or FreeBSD5-CVS?
> b) how can I fix the coredump on FreeBSD 5.0?
> c) what should be done to fix the test on FreeBSD 4.8?
>
> Can this related to the FreeBSD python/zope/zwiki stability problems
> for FreeBSD.  (see http://zwiki.org/GeneralDiscussion200306). Zwiki
> makes heavy use of regular expressions.
>
> I also made some patches to make regrtest.py aware of freebsd4/freebsd5.
> I've put them online at: http://www.gewis.nl/~pieterb/python/bugs-2.2.3/
>
> Thanks in advance,
>
> PieterB
>
> -- 
> http://zwiki.org/PieterB