Description:
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System halts, php hangs up - each file-resource handler becomes invalid.
I'm using CLI php.exe to process image storage with JPG files with approximately size 2-3Mb each. Script uses database dump file each line of them points to physical file location. This dump has 4000-6000 records.  Within cycle it reads one line from dump and call this code, and writes result into log file. It?s outputs ~180 files (~18Kb) per 3-5 sec. Crash becomes at ~ 4h of work. Looks like no more handles aviable.
We have same results on 4 PC?s (all PC?s new, just bayed week ago, all systems has same configuration Core2Duo/3GHz/2Gb, firmly HP), running on Windows XP SP2 (all updates installed), installed extensions ? php_oci8.dll, php_gd2.


Reproduce code:
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$url = {image};	$FileDir = {path} //code to read IN file and open log
@mkdir($FileDir, 0755, true);
if( file_exists($FileDir) ) {
$InputImage = @ImageCreateFromJPEG( $url ) 
$iw = ImageSX($InputImage);	$ih = ImageSY($InputImage);
$ThumbImage = @imagecreatetruecolor(124, 82))
imagecopyresampled($ThumbImage, $InputImage,0, 0, 0, 0, 124, 82, $iw, $ih);
ImageJPEG($ThumbImage, $thumbnail, 80 );
ImageDestroy($ThumbImage);
$rows = ceil($iw /256);	$cols = ceil($ih /256);
for($i = 0; $i < $rows; $i++ ) 	for( $j = 0; $j < $cols; $j++ ){
  if ($OutputImage = @ImageCreateTrueColor( 256,256 )	{
    ImageCopy( $OutputImage, $InputImage, 0, 0, $x, $y, $cw, $ch );
    ImageJPEG( $OutputImage, $OutputFile, 80 );
    ImageDestroy($OutputImage);
  }
  ImageDestroy($InputImage);
}


Expected result:
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images in correpsonding folders

Actual result:
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~4h all is ok, but at nearly 2500-2700 image it's write in log
PHP Warning:  imagejpeg(): Unable to open 'xxx.jpg' for writing: Invalid argument in script.php on line xx
PHP Warning:  fwrite(): supplied argument is not a valid stream resource 
PHP Warning:  fclose(): supplied argument is not a valid stream resource 

System hangs on, you can't open or run anything and need to reboot. During this time created ~720 000 images