Edit report at https://bugs.php.net/bug.php?id=65445&edit=1
ID: 65445
Comment by: michal at michal dot waw dot pl
Reported by: michal at michal dot waw dot pl
Summary: filesize() fails for files with high inode number
Status: Open
Type: Bug
Package: Filesystem function related
Operating System: Linux
PHP Version: 5.5.1
Block user comment: N
Private report: N
New Comment:
Source of the problem lies in lack of support for files larger than 2GB.
>From what I read in different places enabling LFS in PHP is not possible, as
>it requires doing so in Apache and many libraries.
The easiest solution for me is to force XFS to not use inode numbers greater
than 2^32 ("inode32" mount option).
Still I hope one day PHP will have LFS enabled.
Previous Comments:
------------------------------------------------------------------------
[2013-08-16 10:52:04] michal at michal dot waw dot pl
It is a problem with stat(2) C function. For files with inode >= 2^32 it
returns error:
errno: 75 (Value too large for defined data type)
------------------------------------------------------------------------
[2013-08-13 21:33:24] michal at michal dot waw dot pl
This is 32bit system.
Here is the output:
stat64("DSC_5196_fx-1553725666.JPG", {st_mode=S_IFREG|0644, st_size=1907383,
...}) = 0
write(1, "\nWarning: filesize(): stat faile"..., 96) = 96
Please tell me if I can help in any way.
------------------------------------------------------------------------
[2013-08-13 21:02:02] [email protected]
Are you using a 32 or 64 it system?
Could you please run the following on command line to see whether the syscall
for stat succeeds or fails so we can narrow the search:
$ strace php -nr 'filesize("DSC_5196_fx-1553725666.JPG");'
The relevant output is towards the end something like
stat("DSC_5196_fx-1553725666.JPG", 0x7fff38d27f80) = -1 ENOENT (No such file or
directory)
write(1, "\nWarning: filesize(): stat faile"..., 96
or
stat("DSC_5196_fx-1553725666.JPG", {st_mode=S_IFREG|0644, st_size=0, ...}) = 0
thanks.
------------------------------------------------------------------------
[2013-08-13 20:27:21] michal at michal dot waw dot pl
Description:
------------
I have a file for which filesize() can't return value. "stat" result for this
file:
Original file:
File: 'DSC_5196_fx-1553725666.JPG'
Size: 1907383 Blocks: 3728 IO Block: 4096 regular file
Device: 803h/2051d Inode: 5905591363 Links: 1
Access: (0644/-rw-r--r--) Uid: ( 51/ http) Gid: ( 51/ http)
Access: 2013-08-13 00:47:28.107477918 +0200
Modify: 2013-08-12 21:38:27.219913208 +0200
Change: 2013-08-13 00:47:08.931478654 +0200
Birth: -
I've made an exact copy, in same dir, same permissions:
Copy:
File: 'DSC_5196_fx-1553725666_X.JPG'
Size: 1907383 Blocks: 3728 IO Block: 4096 regular file
Device: 803h/2051d Inode: 144 Links: 1
Access: (0644/-rw-r--r--) Uid: ( 51/ http) Gid: ( 51/ http)
Access: 2013-08-13 00:45:48.000000000 +0200
Modify: 2013-08-12 21:38:27.000000000 +0200
Change: 2013-08-13 00:47:28.199477914 +0200
Birth: -
filesize() works for this new file.
I can't find any other difference between these two files.
I checked that filesize() works for files with inode number less or equal to
4126207367and doesn't work for files with inode number equal or greater than
4358705632. I didn't find files with inode number in between but I'm still
looking.
To me it seems that filesize() has problem with inode number higher than 2^32.
Test script:
---------------
<html>
<body>
<pre>
<?
$f1 =
'/home/services/httpd/html.galeria.michal.waw.pl/gallery/var/albums/988_Rok-2013/Sobota/DSC_5196_fx-1553725666.JPG';
$f2 =
'/home/services/httpd/html.galeria.michal.waw.pl/gallery/var/albums/988_Rok-2013/Sobota/DSC_5196_fx-1553725666_X.JPG';
print $f1.": ".filesize($f1)."\n";
print $f2.": ".filesize($f2)."\n";
?>
</pre>
</body>
</html>
Expected result:
----------------
I expected to see sizes of both files.
Actual result:
--------------
Warning: filesize(): stat failed for
/home/services/httpd/html.galeria.XXX/gallery/var/albums/988_Rok-2013/333_Rydzewo-04-06.08.2013/Sobota/DSC_5196_fx-1553725666.JPG
in /home/services/httpd/html.galeria.michal.waw.pl/gallery3-3.0.x/test.php on
line 13
/home/services/httpd/html.galeria.XXX/gallery/var/albums/988_Rok-2013/333_Rydzewo-04-06.08.2013/Sobota/DSC_5196_fx-1553725666.JPG:
/home/services/httpd/html.galeria.XXX/gallery/var/albums/988_Rok-2013/333_Rydzewo-04-06.08.2013/Sobota/DSC_5196_fx-1553725666_X.JPG:
1907383
------------------------------------------------------------------------
--
Edit this bug report at https://bugs.php.net/bug.php?id=65445&edit=1
