[lxml-dev] lxml 1.3 coming up - core dump

[jholg at gmx.de]

Hi,

> Yes, I've seen that before and it's reproduceable if it occurs. So far, I
> have
> no idea where this might come from. The "tupletraverse" makes it look like
> a
> GC crash when collecting Python (!) references, but I really don't see
> where
> this might be triggered in lxml. All problems we had so far were related
> to
> libxml2 data being double freed and stuff.
> 
> I'd be happy about any idea how to investigate this any deeper.

For what it's worth, I'm seeing a strange dependency on the *arguments* passed to test.py:

No args: Works 
==============
0 lb54320 at adevp02 .../lxml-1.3 $ PYTHONPATH=src python2.4 test.py

TESTED VERSION:
    Python:            (2, 4, 4, 'final', 0)
    lxml.etree:        (1, 3, 0, 44288)
    libxml used:       (2, 6, 27)
    libxml compiled:   (2, 6, 27)
    libxslt used:      (1, 1, 20)
    libxslt compiled:  (1, 1, 20)

----------------------------------------------------------------------
Ran 552 tests in 0.978s

OK
0 lb54320 at adevp02 .../lxml-1.3 $ 


-p only: Works
==============
0 lb54320 at adevp02 .../lxml-1.3 $ PYTHONPATH=src python2.4 test.py -p

TESTED VERSION:
    Python:            (2, 4, 4, 'final', 0)
    lxml.etree:        (1, 3, 0, 44288)
    libxml used:       (2, 6, 27)
    libxml compiled:   (2, 6, 27)
    libxslt used:      (1, 1, 20)
    libxslt compiled:  (1, 1, 20)

 552/552 (100.0%)
----------------------------------------------------------------------
Ran 552 tests in 1.052s

OK
0 lb54320 at adevp02 .../lxml-1.3 $ 


-v only: Works
==============
0 lb54320 at adevp02 .../lxml-1.3 $ PYTHONPATH=src python2.4 test.py -v

TESTED VERSION:
    Python:            (2, 4, 4, 'final', 0)
    lxml.etree:        (1, 3, 0, 44288)
    libxml used:       (2, 6, 27)
    libxml compiled:   (2, 6, 27)
    libxslt used:      (1, 1, 20)
    libxslt compiled:  (1, 1, 20)

........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
----------------------------------------------------------------------
Ran 552 tests in 1.016s

OK
0 lb54320 at adevp02 .../lxml-1.3 $


-vv: Core Dump
==============
0 lb54320 at adevp02 .../lxml-1.3 $ PYTHONPATH=src python2.4 test.py -vv

TESTED VERSION:
    Python:            (2, 4, 4, 'final', 0)
    lxml.etree:        (1, 3, 0, 44288)
    libxml used:       (2, 6, 27)
    libxml compiled:   (2, 6, 27)
    libxslt used:      (1, 1, 20)
    libxslt compiled:  (1, 1, 20)

test_attribute_based_lookup (lxml.tests.test_classlookup.ClassLookupTestCase) ... ok
test_custom_lookup (lxml.tests.test_classlookup.ClassLookupTestCase) ... ok
test_custom_lookup_ns_fallback (lxml.tests.test_classlookup.ClassLookupTestCase) ... ok
test_default_class_lookup (lxml.tests.test_classlookup.ClassLookupTestCase) ... ok
[...]
test_xslt_shortcut (lxml.tests.test_xslt.ETreeXSLTTestCase) ... ok
test_xslt_unicode (lxml.tests.test_xslt.ETreeXSLTTestCase) ... ok
test_xslt_utf8 (lxml.tests.test_xslt.ETreeXSLTTestCase) ... ok
Doctest: extensions.txt ... ok
Doctest: xpathxslt.txt ... ok

----------------------------------------------------------------------
Ran 552 tests in 1.058s

OK
Illegal Instruction (core dumped)
132 lb54320 at adevp02 .../lxml-1.3 $


-p -v: Core Dump
================

132 lb54320 at adevp02 .../lxml-1.3 $ PYTHONPATH=src python2.4 test.py -p -v

TESTED VERSION:
    Python:            (2, 4, 4, 'final', 0)
    lxml.etree:        (1, 3, 0, 44288)
    libxml used:       (2, 6, 27)
    libxml compiled:   (2, 6, 27)
    libxslt used:      (1, 1, 20)
    libxslt compiled:  (1, 1, 20)

 552/552 (100.0%): Doctest: xpathxslt.txt                                                    
----------------------------------------------------------------------
Ran 552 tests in 1.089s

OK
Illegal Instruction (core dumped)
132 lb54320 at adevp02 .../lxml-1.3 $ 


Holger

-- 
GMX FreeMail: 1 GB Postfach, 5 E-Mail-Adressen, 10 Free SMS.
Alle Infos und kostenlose Anmeldung: http://www.gmx.net/de/go/freemail