Hi,
While doing some tests with the python sax interface and drv_libxml2.py I
ran in a problem with some of my test-xml files.
I have attached a simple, minimal python script which triggers the problem
together with two xml-files.
"REC.xml" is the original one and "REC_test2.xml" is a bit shortened, as I
thought some xml speciality would be the cause.
The problem is an segfault after a long while. I ran an gdb session on it
and it showed an infinite loop.
Here's a shortened backtrace of gdb:
"""
#0 0x4037e039 in chunk_alloc () from /lib/i686/libc.so.6
#1 0x4037deb2 in malloc () from /lib/i686/libc.so.6
#2 0x408d3c52 in xmlStrndup (cur=0x8113e2b "href", len=16) at
xmlstring.c:45
#3 0x408d3ce2 in xmlStrdup (cur=0x1 <Address 0x1 out of bounds>) at
xmlstring.c:71
#4 0x4088909b in xmlNewDocProp (doc=0x0, name=0x8113e2b "href", value=0x0)
at tree.c:1946
#5 0x4088ad33 in xmlCopyProp (target=0x8afef180, cur=0x80b3800) at
tree.c:3576
#6 0x4088afad in xmlCopyPropList (target=0x8afef180, cur=0x80b3800) at
tree.c:3679
#7 0x4088b252 in xmlStaticCopyNode (node=0x810f548, doc=0x0,
parent=0x8afeeff8, extended=1) at tree.c:3829
#8 0x4088b3c6 in xmlStaticCopyNodeList (node=0x810f548, doc=0x0,
parent=0x8afeeff8) at tree.c:3879
#9 0x4088ae5c in xmlCopyProp (target=0x8afeefa8, cur=0x80b3800) at
tree.c:3635
#10 0x4088afad in xmlCopyPropList (target=0x8afeefa8, cur=0x80b3800) at
tree.c:3679
#11 0x4088b252 in xmlStaticCopyNode (node=0x810f548, doc=0x0,
parent=0x8afeee20, extended=1) at tree.c:3829
#12 0x4088b3c6 in xmlStaticCopyNodeList (node=0x810f548, doc=0x0,
parent=0x8afeee20) at tree.c:3879
"""
libxml2.parseFile('REC_test2.xml') does not trigger this problem, nor does
xmllint.
So I assume the problem is somewhere in sax-parsing together with the
python-extension.
My testing environment is:
Linux with gcc 3.2
libxml2 2.6.9
libxml2-python 2.6.9
libxslt 1.1.7
python 2.3.3
Could someone try to confirm this?
Thanks,
Robert
Robert Zimmermann
Softwaredevelopment
WEB.DE AG
http://ComWin.name/rz webde-ag de
Attachment:
libxml2sax.tgz
Description: Binary data