Description:
------------
Warning: filemtime($file) and filesize($file)
if the dimensions of the files exceed the 2-3 Gb. 

Reproduce code:
---------------
#!/usr/local/php/bin/php
<?
clearstatcache();
$INT = 4294967295;//2147483647+2147483647+1;

foreach (glob("*") as $filename) {
  clearstatcache();
  $fm=filemtime($filename);
  $fs=filesize($filename);
  echo "File $filename time $fm size $fs\n";
}

exec("ls -al",$out);
for ($j=0;$j<=count($out);$j++) {
  echo "$out[$j]\n";
}
?>


Actual result:
--------------
# ./x.php
File mail_etc-0.tar.gz time 1237078946 size 391903
File mail_etc-1.tar.gz time 1237165351 size 391903
File mail_etc-2.tar.gz time 1237251752 size 391903
File mail_etc-3.tar.gz time 1236733344 size 391903
File mail_etc-4.tar.gz time 1236819742 size 391903
File mail_etc-5.tar.gz time 1236906791 size 391903
File mail_etc-6.tar.gz time 1236992539 size 391903
File mail_usr-0.tar.gz time 1237078945 size 134158206
File mail_usr-1.tar.gz time 1237165349 size 136975379
File mail_usr-2.tar.gz time 1237251750 size 125891072
File mail_usr-3.tar.gz time 1236733342 size 128491746
File mail_usr-4.tar.gz time 1236819741 size 125703927

Warning: filemtime(): stat failed for mail_usr-5.tar.gz in /var/local/backup/zipped/x.php on line 7
Warning: filesize(): stat failed for mail_usr-5.tar.gz in /var/local/backup/zipped/x.php on line 8
File mail_usr-5.tar.gz time  size

File mail_usr-6.tar.gz time 1236992537 size 131379664

Warning: filemtime(): stat failed for mail_var-0.tar.gz in /var/local/backup/zipped/x.php on line 7
Warning: filesize(): stat failed for mail_var-0.tar.gz in /var/local/backup/zipped/x.php on line 8
File mail_var-0.tar.gz time  size

Warning: filemtime(): stat failed for mail_var-1.tar.gz in /var/local/backup/zipped/x.php on line 7
Warning: filesize(): stat failed for mail_var-1.tar.gz in /var/local/backup/zipped/x.php on line 8
File mail_var-1.tar.gz time  size

Warning: filemtime(): stat failed for mail_var-2.tar.gz in /var/local/backup/zipped/x.php on line 7
Warning: filesize(): stat failed for mail_var-2.tar.gz in /var/local/backup/zipped/x.php on line 8
File mail_var-2.tar.gz time  size

Warning: filemtime(): stat failed for mail_var-5.tar.gz in /var/local/backup/zipped/x.php on line 7
Warning: filesize(): stat failed for mail_var-5.tar.gz in /var/local/backup/zipped/x.php on line 8
File mail_var-5.tar.gz time  size

Warning: filemtime(): stat failed for mail_var-6.tar.gz in /var/local/backup/zipped/x.php on line 7
Warning: filesize(): stat failed for mail_var-6.tar.gz in /var/local/backup/zipped/x.php on line 8

File mail_var-6.tar.gz time  size
File x time 1228924381 size 4096
File x.php time 1237289425 size 312

total 26018356
drwxr-sr-x 3 root staff       4096 2009-03-17 12:30 .
drwxr-sr-x 3 root staff       4096 2009-03-09 06:26 ..
-rw-r--r-- 1 root staff     391903 2009-03-15 02:02 mail_etc-0.tar.gz
-rw-r--r-- 1 root staff     391903 2009-03-16 02:02 mail_etc-1.tar.gz
-rw-r--r-- 1 root staff     391903 2009-03-17 02:02 mail_etc-2.tar.gz
-rw-r--r-- 1 root staff     391903 2009-03-11 02:02 mail_etc-3.tar.gz
-rw-r--r-- 1 root staff     391903 2009-03-12 02:02 mail_etc-4.tar.gz
-rw-r--r-- 1 root staff     391903 2009-03-13 02:13 mail_etc-5.tar.gz
-rw-r--r-- 1 root staff     391903 2009-03-14 02:02 mail_etc-6.tar.gz
-rw-r--r-- 1 root staff  134158206 2009-03-15 02:02 mail_usr-0.tar.gz
-rw-r--r-- 1 root staff  136975379 2009-03-16 02:02 mail_usr-1.tar.gz
-rw-r--r-- 1 root staff  125891072 2009-03-17 02:02 mail_usr-2.tar.gz
-rw-r--r-- 1 root staff  128491746 2009-03-11 02:02 mail_usr-3.tar.gz
-rw-r--r-- 1 root staff  125703927 2009-03-12 02:02 mail_usr-4.tar.gz
-rw-r--r-- 1 root staff 4285351561 2009-03-13 02:13 mail_usr-5.tar.gz
-rw-r--r-- 1 root staff  131379664 2009-03-14 02:02 mail_usr-6.tar.gz
-rw-r--r-- 1 root staff 4325402628 2009-03-15 03:03 mail_var-0.tar.gz
-rw-r--r-- 1 root staff 4331416751 2009-03-16 03:04 mail_var-1.tar.gz
-rw-r--r-- 1 root staff 4380545951 2009-03-17 03:05 mail_var-2.tar.gz
-rw-r--r-- 1 root staff 4247708455 2009-03-13 03:13 mail_var-5.tar.gz
-rw-r--r-- 1 root staff 4260856750 2009-03-14 03:01 mail_var-6.tar.gz
drwxr-sr-x 3 root staff       4096 2008-12-10 16:53 x
-rwx------ 1 root root         312 2009-03-17 12:30 x.php