ID: 49503 Comment by: jd at cpanel dot net Reported By: mike at fuelsaver-mpg dot com Status: No Feedback Bug Type: Session related Operating System: Linux 2.6.9-023stab048.6-enterpr PHP Version: 5.2.10 New Comment:
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 Previous Comments: ------------------------------------------------------------------------ [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 ------------------------------------------------------------------------ [2009-09-17 01:00:02] php-bugs at lists dot php dot net No feedback was provided for this bug for over a week, so it is being suspended automatically. If you are able to provide the information that was originally requested, please do so and change the status of the bug back to "Open". ------------------------------------------------------------------------ [2009-09-09 08:58:46] j...@php.net Please try using this snapshot: http://snaps.php.net/php5.2-latest.tar.gz For Windows: http://windows.php.net/snapshots/ ------------------------------------------------------------------------ [2009-09-08 20:42:09] mike at fuelsaver-mpg dot com Description: ------------ When I upgraded to php 5.2.10, I had my error log growing to 100s of MBs with error messages that it was unable to open its semaphore file. I un-commented the php.ini line: "session.save_path = ", created a directory that could be written to, and this resolved that particular error. However, I'm still getting the following errors, albeit on a less frequent basis. I got 53 of these in one day however: [07-Sep-2009 00:24:46] PHP Warning: PHP Startup: mm_create(0, /home/fuelsa5/tmp/php/session_mm_cgi32010) failed, err mm:core: failed to open semaphore file (File exists) in Unknown on line 0 There are files being created in the directory, so it's not a permissions issue. Per the warning, a duplicate file is attempting to be created. Expected result: ---------------- I expect not to get so many error messages. I'm not even sure what's breaking. ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=49503&edit=1
