ID:               49503
 Updated by:       j...@php.net
 Reported By:      mike at fuelsaver-mpg dot com
-Status:           Assigned
+Status:           Closed
 Bug Type:         Session related
 Operating System: Linux 2.6.9-023stab048.6-enterpr
 PHP Version:      5.2.11
 Assigned To:      srinatar
 New Comment:

Thanks for digging this. I have absolutely no idea why I had added this
warning there. Might have been either some debug code I put there while
testing or simply copy'n'paste error gone wild.. :(

I removed it now. And you can of course avoid the warning by setting
the session.save_path properly. :)


Previous Comments:
------------------------------------------------------------------------

[2009-10-08 10:33:26] s...@php.net

Automatic comment from SVN on behalf of jani
Revision: http://svn.php.net/viewvc/?view=revision&revision=289338
Log: - Fixed bug #49503 (invalid warning for failed semaphore file
creation)
# I have no idea why I had added this. Might have been some debug
code.. :(

------------------------------------------------------------------------

[2009-10-02 23:49:52] srina...@php.net

i will assign it to myself so that i can look more into this some time
next week

------------------------------------------------------------------------

[2009-10-02 01:06:00] sriram dot natarajan at gmail dot com

i am just curious - how does this affect writing session to memcached ?

------------------------------------------------------------------------

[2009-10-01 12:36:22] senker at gmail dot com

It also disables writing sessions to memcached, so if you are using
memcached, you have to stick to 5.2.9.

Please escalate this to higher priority, it's unbelievable such
important bug spans over two PHP versions already.

------------------------------------------------------------------------

[2009-09-18 22:38:38] jd at cpanel dot net

Still present in 5.2.11.

This looks like it's identical to bugs 49401, 49427 and 49433 which
were incorrectly marked as bogus.

This happens when the mm session module tries to initialize itself. 
You don't need anything configured to use MM to hit the problem.  As
this particular bug illustrates, even a valid session.save_path setting
wont avoid running into the same spurious warning.

Ex:

j...@jd:~$ /usr/local/bin/php -i | grep -i session
PHP Warning:  PHP Startup: mm_create(0, /session_mm_cli32004) failed,
err mm:core: failed to open semaphore file (Permission denied) in
Unknown on line 0
session
Session Support => enabled
session.auto_start => Off => Off
session.bug_compat_42 => On => On
session.bug_compat_warn => On => On
session.cache_expire => 180 => 180
session.cache_limiter => nocache => nocache
session.cookie_domain => no value => no value
session.cookie_httponly => Off => Off
session.cookie_lifetime => 0 => 0
session.cookie_path => / => /
session.cookie_secure => Off => Off
session.entropy_file => no value => no value
session.entropy_length => 0 => 0
session.gc_divisor => 100 => 100
session.gc_maxlifetime => 1440 => 1440
session.gc_probability => 1 => 1
session.hash_bits_per_character => 4 => 4
session.hash_function => 0 => 0
session.name => PHPSESSID => PHPSESSID
session.referer_check => no value => no value
session.save_handler => files => files
session.save_path => no value => no value
session.serialize_handler => php => php
session.use_cookies => On => On
session.use_only_cookies => Off => Off
session.use_trans_sid => 0 => 0
WDDX Session Serializer => enabled


The change between 5.2.9 and 5.2.10 that makes the difference is the
warning added in revision 280733:

 r...@jd:/usr/local/svn/php/PHP_5_2# svn log -r280733 --verbose
------------------------------------------------------------------------
r280733 | jani | 2009-05-18 12:23:42 -0500 (Mon, 18 May 2009) | 2
lines
Changed paths:
   M /php/php-src/branches/PHP_5_2/ext/session/mod_files.c
   M /php/php-src/branches/PHP_5_2/ext/session/mod_mm.c
   M /php/php-src/branches/PHP_5_2/ext/session/mod_user.c
   M /php/php-src/branches/PHP_5_2/ext/session/php_session.h
   M /php/php-src/branches/PHP_5_2/ext/session/session.c

MFH: Sync WS / CS changes where applicable

------------------------------------------------------------------------


It's not really clear why the warning was added to the 5.2 branch
though, since it doesn't look like it was added to trunk or 5.3 in
revisions 280729 and 280728.

svn diff
http://svn.php.net/repository/php/php-src/branches/PHP_5_2/ext/session/mod_mm.c
http://svn.php.net/repository/php/php-src/trunk/ext/session/mod_mm.c

------------------------------------------------------------------------

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the rest of the comments, please view the bug report online at
    http://bugs.php.net/49503

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Edit this bug report at http://bugs.php.net/?id=49503&edit=1

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