Hello Perl Monks, I'm trying to load a 290MB XML file using Tk and LibXML. I'm on Windows 7 64bit with 8GB of RAM using strawberry 'perl 5, version 30, subversion 0 (v5.30.0) built for MSWin32-x64-multi-thread'

This is the stripped down version of the script that's been crashing:

use strict;
use XML::LibXML;
use Tk;

my $filename;
my $xpc;

my $mw = MainWindow->new( -title => 'GUI' );
$mw->Button( -text => 'Load XML', -command => \&tk_Load_Export )->grid
+(-column => '0', -row => '0', -sticky => 'e');
MainLoop;

sub tk_Load_Export {
  $filename = $mw->getOpenFile( -title => 'Load XML', -defaultextensio
+n => '.xml', -initialdir => '.' ) or return;
  import_XML($filename);
}

sub import_XML {
    print "Reading the XML file $filename\n\n";
    my $dom = XML::LibXML->load_xml(location => $filename, huge => 1);
    $xpc = XML::LibXML::XPathContext->new($dom);
    print "XML imported\n"; 
}

[download]

After I get 'XML imported' output the script crashes with these 'Perl interpreter stopped working' Windows messages

Problem signature:
  Problem Event Name:    APPCRASH
  Application Name:    perl.exe
  Application Version:    5.30.0.1
  Application Timestamp:    5ce675b5
  Fault Module Name:    Tk.xs.dll
  Fault Module Version:    8.4.2.5
  Fault Module Timestamp:    5d48325f
  Exception Code:    c0000005
  Exception Offset:    000000000006b197
  OS Version:    6.1.7601.2.1.0.256.48
  Locale ID:    1033
  Additional Information 1:    0922
  Additional Information 2:    09222532a50de2713b0e459db9ce5206
  Additional Information 3:    1a6d
  Additional Information 4:    1a6d675851be0305a03f72c1d1fc7bfd

  --
  
Problem signature:
  Problem Event Name:    APPCRASH
  Application Name:    perl.exe
  Application Version:    5.30.0.1
  Application Timestamp:    5ce675b5
  Fault Module Name:    Tk.xs.dll
  Fault Module Version:    8.4.2.5
  Fault Module Timestamp:    5d48325f
  Exception Code:    c000041d
  Exception Offset:    000000000006b197
  OS Version:    6.1.7601.2.1.0.256.48
  Locale ID:    1033
  Additional Information 1:    0561
  Additional Information 2:    056116c4c04c02ca22cbeb428d55467a
  Additional Information 3:    dab2
  Additional Information 4:    dab22cdd161f9720b851e7ce36d909c8

[download]

Sometimes but not always I also get this message after 'XML imported' output:

Free to wrong pool 46af30 not 645b4f4a at C:/Strawberry/perl/site/lib/
+Tk.pm line 424.

[download]

Is this because of the file size? The script doesn't crash on smaller XML files (~200MB).

Can someone help me understand why this is happening and how do I mitigate this?

In reply to Script using Tk and LibXML crashing by misczol

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