Re: [xml] Deadlock in catalog.c?

[Mark Van Peteghem <Mark Van Peteghem telenet be>]

I should add that this is on Windows XP with Visual C++ 2005.

Mark Van Peteghem wrote:
> Hi,
>
> I'm stuck on what looks like a deadlock in libxml2.
>
> My application calls xmlInitializeCatalog() and xmlLoadCatalog(...) 
> (which returns 0) in the main thread. Then another thread is launched 
> in which I do XML validation with DTDs. These work fine until a XML 
> file refers to a DTD that has to be looked up in the catalog file that 
> I loaded with xmlLoadCatalog(...): then the thread blocks when trying 
> to lock xmlCatalogMutex (catalog.c, line 1416 in the function 
> xmlFetchXMLCatalogFile). The strange thing is that there are no other 
> threads doing any locking (except for the thread created by libxml2 
> that waits in xmlGlobalStateCleanupHelper).
>
> I noticed that if I do the same XML validation on the main thread, it 
> works fine, and after that it works on the other thread as well.
>
>
> Regards,