Re: [Gcx-engine-bugs] GCX has requested the Runtime to terminate it in an unusual way.

[Michael S. <msc...@in...>]

Dear Denis,

just had a quick look at it and could verify your bug. Seems that mmap is running out of memory, the message I get on my Mac is:

malloc: *** mmap(size=2097152) failed (error code=12)
*** error: can't allocate region

The problem with the query is that GCX is not capable of projecting the dummy-tags away, which results in high memory usage.

I guess you used one of the precompiled binaries (32bit)? In case you are using a 64bit machine, I would recommend to download the sources and recompile, this did help in my case and the error disappeared.

In case this is not an option for you, I can have a deeper look into the code.

Best,
Michael


On Feb 10, 2012, at 2:41 PM, Denis DEBARBIEUX wrote:

> Hi,
> 
> I made some experiments with GCX and I got an error: This application 
> has requested the Runtime to terminate it in an unusual way.
> 
> Below are some information to reproduce the error.
> 
> Thanks for your help help,
> 
> Denis
> 
> Query:
> <result>
> { for $x in /descendant::*
>    where fn:not($x/child::B1)
>    return $x/child::B2
> }
> </result>
> 
> Document is generated by the following Java code:
> 
> /**
> * Generate document: 
> <doc><A1/><B2/><B1><dummy/><dummy/>....<dummy/></B1></A1></doc>
> */
> public static void main(String[] args) {
>         String path2GeneratedFile = 
> "C:\\huge_document\\early-big-subtree.xml";
> 
> 
>         try {
> 
>             FileWriter fw = new FileWriter(path2GeneratedFile, false);
> 
>             BufferedWriter output = new BufferedWriter(fw);
> 
>             output.write("<root>");
>             output.write("<A1>");
>             output.write("<B2/>");
>             output.write("<B1>");
>             for (long i = 0; i < 100000000l; i++) {
>                 output.write("<dummy/>");
>             }
>             output.write("</B1>");
>             output.write("</A1>");
>             output.write("</root>");
> 
>             output.flush();
> 
>             output.close();
> 
>             System.out.println("fichier créé");
>         } catch (IOException ioe) {
>             System.out.print("Erreur : ");
>             ioe.printStackTrace();
>         }
> 
>     }
> 
> Expected result: nothing is selected.
> 
> Actual result:
> <result>
> This application has requested the Runtime to terminate it in an unusual 
> way.
> Please contact the application's support team for more information.
> 
> -- 
> Denis Debarbieux
> Engineer at INRIA
> +33 (0)3.59.57.78.15
> Skype: denis.debarbieux
> 
> 
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