Re: [xml] xmlParseFile crashes with segmentation fault in Multithreaded Application

[Aron Stansvik <elvstone gmail com>]

On 4/18/05, Manoj Kumar <manoj2kb yahoo co in> wrote:
> Hi, 
>   
> Thank you for your reply. 
>   
> But no we don't use any such call. The first XML call that we make is
> xmlParseFile from one of the sub threads it fails. Just to test if something
> is wrong with our method we moved the call to main thread it works prefectly
> fine. But our main thread is not supposed do any  xml related calls. Hence
> we start using xml only in the subthread.  But we get segmentation fault
> there. we also tried using xmlInitParser() in hte main thread even that does
> not help. 

xmlInitParser() should always be called from the main thread
(http://xmlsoft.org/threads.html). Can you reproduce your problem with
a minimal example?

Best regards,
Aron

> On Mon, 2005-04-18 at 01:20 -0700, Manoj Kumar wrote:
> > Hello everyone,
> > 
> > we have a multithreaded application. When we try call the xmlParseFile
> > function from the subthreads the call fails with segmentation fault.
> > However the call succeeds if done from the main thread. 
> > 
> > Can anybody help us around this problem and tell us how to and what
> > are the things to be followed when using xml in multithreaded
> > applications
> 
> Do you use xmlCleanupParser() in the thread's code? If yes, then
> try to search for this function in the archives (e.g. [1]). It's
> intended to be called only once in the main thread.
> 
> [1]
> http://mail.gnome.org/archives/xml/2003-September/msg00241.html
> 
> Regards,
> 
> Kasimier
> 
> 
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