[lxml-dev] PyThread_release_lock segmentation fault

[Holger Joukl]

Hi,

lxml-dev-bounces at codespeak.net schrieb am 09.01.2007 04:31:37:

> Hello,
>
> I'm getting segmentation faults inside PyThread_release_lock when trying
> to use lxml 1.1.2.  The various stack traces I have seen seem to vary,
> but they are all related to "__xmlRaiseError () from
> /usr/lib/libxml2.so.2" (I haven't produced very many test cases, so
> there might be other causes).  The original lxml install was done with
> easy_install, but I get the same results when I test the source directly.
>
> I'm using libxml2-2.6.27, gcc 3.4.3, and python 2.4 on a relatively
> recent redhat install.

No segfaults on my solaris system using gcc 2.95.2, libxml-2.6.27,
libxslt-1.1.18
and python 2.4.3.
There's been some issues with segfaults due to errors raised from libxml
lately which seemed to be correlated with python 2.3 and threading, you
might want
to take a look at the archives. I ran into some myself using python 2.3.

Note that
- my current version is a 1.1.2 branch snapshot taken some time ago
- the "libxml used" and "libxml compiled" output is the same on my system,
but
not on yours (whatever that's supposed to mean)
- I use a more recent Python 2.4 version (2.4.3); maybe the
Python2.3-threading-lxml
issue also extends to earlier Python 2.4-versions?

Holger

Here's my test log:

$ PATH=/apps/pydev/bin:$PATH make test PYTHON=/apps/pydev/bin/python2.4
/apps/pydev/bin/python2.4 setup.py  build_ext -i
Building lxml version 1.1.2-33909
running build_ext
/apps/pydev/bin/python2.4 test.py -p -v

TESTED VERSION:
    Python:            (2, 4, 3, 'final', 0)
    lxml.etree:        (1, 1, 2, 33909)
    libxml used:       (2, 6, 27)
    libxml compiled:   (2, 6, 27)
    libxslt used:      (1, 1, 18)
    libxslt compiled:  (1, 1, 18)

 477/477 (100.0%): Doctest: extensions.txt
======================================================================
ERROR: test_object_path_syntax
(lxml.tests.test_objectify.ObjectifyTestCase)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/apps/prod//lib/python2.4/unittest.py", line 260, in run
    testMethod()
  File "/data/pydev/DOWNLOADS/LXML/lxml/lxml-1.1
/src/lxml/tests/test_objectify.py", line 544, in test_object_path_syntax
    self.assertEquals(root.c1.c2.text, path(root).text)
  File "objectify.pyx", line 1103, in objectify.ObjectPath.__call__
  File "objectify.pyx", line 1244, in objectify._findObjectPath
ValueError: root element does not match: need {objectified}root , got
{objectified}root

======================================================================
FAIL: test_xslt_parameter_missing (lxml.tests.test_xslt.ETreeXSLTTestCase)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/apps/prod//lib/python2.4/unittest.py", line 260, in run
    testMethod()
  File "/data/pydev/DOWNLOADS/LXML/lxml/lxml-1.1
/src/lxml/tests/test_xslt.py", line 221, in test_xslt_parameter_missing
    st.apply, tree)
  File "/apps/prod//lib/python2.4/unittest.py", line 326, in
failUnlessRaises
    raise self.failureException, "%s not raised" % excName
AssertionError: XSLTApplyError not raised

----------------------------------------------------------------------
Ran 477 tests in 1.014s

FAILED (failures=1, errors=1)
make: *** [test_inplace] Error 1


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