Re: segfault on xpath queries :P

darryl wrote:
> darryl wrote:
> 
>> darryl wrote:
>>
>>>
>>>>>
>>>>> Ok... well, I ended up using all client-side xslt & xpath for the 
>>>>> demo I had to do on Saturday. I will try to do some more debugging, 
>>>>> but since I can't reproduce this behaviour when I'm driving libxml 
>>>>> directly, I may just start using the libraries themselves.
>>>>> -- 
>>>>>
>>>> It's unfortunate but it appears Kimbro is otherwise occupied. I 
>>>> looked, but dont' know the code well enough to do some serious 
>>>> debugging.
>>>> Hopefully you can see something in your debugging attempts.
>>>>
>>>> cheers,
>>>> darryl
>>>>
>>> FWIW, i don't know shit about debugging python extension modules in 
>>> python BUT when i ran python under gdb and ran the script i got:
>>>  >>> from Weblog import Weblog
>>>  >>> blog = Weblog('.')
>>> Registering prefix syncato
>>>  >>> blog.handleRequest('//character','','','')
>>>
>>> Program received signal SIGSEGV, Segmentation fault.
>>> [Switching to Thread 16384 (LWP 6013)]
>>> 0x40d49980 in xmlReconciliateNs () from /usr/lib/libxml2.so.2
>>> (gdb)
>>>
>>>
>>> -darryl
>>>
>>
>> It seems to by crashing on this function call:
>>
>> result.reconciliateNs(doc.getDocument())
>>
>> It also seems to only affect 501.xml,503.xml and 504.xml
>>
>> -darryl
>>
> 
> I commented out the above function call and it parses all your documents 
> fine. I have no idea what affect that will have, but there you go...
> 
> 
> -darryl
> 
Ok this is getting fun now:

 >import libxml2
 >doc = libxml2.parseFile('501.xml')
 >results = doc.xpathEval('//character')
 >for result in results:
...  result.reconciliateNs(doc)
...
Segmentation fault

So it appears it's not syncato's fault.
FWIW it's breaking on this:

<character name="Ferraguto">Ferrag&ugrave;</character>

It doesn't appear to like the "&ugrave;"
-darryl
-- 
http://randomthoughts.vandorp.ca/WK/blog


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