Edit report at http://bugs.php.net/bug.php?id=51404&edit=1
ID: 51404
Comment by: josh at 6bit dot com
Reported by: neversaynever at tut dot by
Summary: is_dir() returns false on cifs mounted share
Status: Bogus
Type: Bug
Package: Directory function related
Operating System: Linux
PHP Version: Irrelevant
Block user comment: N
Private report: N
New Comment:
Just spent 5 hours trying to figure out an issue that was caused by this
bugger...
If PERL handles this case properly then there must be a small issue with
PHP's
implementation. I'm happy to attempt to provide a patch if someone can
point me in
the proper direction.
Previous Comments:
------------------------------------------------------------------------
[2010-06-09 20:49:11] digitalaudiorock at gmail dot com
I just found a blog post (which I had to dredge out of the google cache)
where someone figured this out. The CIFS mount is now apparently using
the serverino option by default. In the case of Windows shares this
appears to be resulting in huge inode numbers which are causing is_dir()
to report false. Using the noserverino option prevents this. Scary
stuff.
------------------------------------------------------------------------
[2010-06-09 20:06:02] digitalaudiorock at gmail dot com
I have to agree with the original poster. Running php 5.2.13 Under
Gentoo I have problems with is_dir() on CIFS shares with 2.6.31 and
2.6.32. On a machine I have running 2.6.30 I don't see the issue.
Here's a CIFS mounted directory that reports is_dir() as false even
though chdir() reports true:
php -r 'var_dump(is_dir("/home/tom/mount/sql"));'
bool(false)
php -r 'var_dump(chdir("/home/tom/mount/sql"));'
bool(true)
Here's the equivalent in perl that reports true:
perl -e '(-d "/home/tom/mount/sql") && print "OK\n"'
OK
ls -ald /home/tom/mount/sql
drwxr-xr-x 1 tom tom 0 Apr 28 2008 /home/tom/mount/sql
That's a windows share mounted as administrator of the windows machine.
While this may be caused somehow by CIFS changes in the kernel, there
truely is something ugly going on here and it's caused me some serious
problems.
Tom
------------------------------------------------------------------------
[2010-06-08 14:33:22] [email protected]
I'm sure PHP doesn't affect any of system functions, including stat().
You get what your stat() returns -> not PHP problem.
------------------------------------------------------------------------
[2010-03-26 20:34:07] neversaynever at tut dot by
Description:
------------
I upgraded my kernel to 2.6.31 (stable) and has php-5.2.12 (stable),
but
php function is_dir() returns false for folder on my cifs mounted
share.
strace php -r 'var_dump(is_dir("/path_to_mounted_folder/"));'
...
stat64("/path_to_mounted_folder/", {st_mode=S_IFDIR|0755, st_size=32768,
...}) = 0
gettimeofday({1269602972, 30466}, NULL) = 0
write(1, "bool(false)\n", 12bool(false)
) = 12
...
Test script:
---------------
php -r 'var_dump(is_dir("/path_to_mounted_folder/"));'
Expected result:
----------------
bool(true)
Actual result:
--------------
bool(false)
------------------------------------------------------------------------
--
Edit this bug report at http://bugs.php.net/bug.php?id=51404&edit=1
