ID: 47640 User updated by: manuel dot schmitt at manitu dot de Reported By: manuel dot schmitt at manitu dot de -Status: Feedback +Status: Open Bug Type: Session related Operating System: Linux PHP Version: 5.2.9 New Comment:
E.g. any S9Y installation does reproduce this. I cannot post this here because it has lots of files. BUT as I told you I said what I suppose. I suppose that scripts running into any php limit (e.g. execution time) do not properly close the session files. It does NOT happen when scripts are correctly finished! Previous Comments: ------------------------------------------------------------------------ [2009-03-15 12:19:31] [email protected] Please provide script(s) that reliably can be used to reproduce this. I can not reproduce this anywhere (even high traffic sites using sessions). Just saying something happens does not make it true.. ------------------------------------------------------------------------ [2009-03-15 11:24:15] manuel dot schmitt at manitu dot de The most simple script at all <?php session_start(); ?> can cause the problem, please take my notes I posted before into attention. ------------------------------------------------------------------------ [2009-03-13 10:06:52] manuel dot schmitt at manitu dot de Description: ------------ PHP internal session handler does not correctly closes flock()s on session files Reproduce code: --------------- (This bug seems the same issue as bug #32092) The problem happens on various PHP applications, no matter what they do exactly. Only one same thing: They are all using PHP sessions. In these cases Apache/PHP-processes hanging forever (until killed). I have strace'd the processed, they are hanging on flock()ing the session file as flock(FILE_ID, LOCK_EX, <unfinished>) where FILE_ID is a /tmp/sess_XXX-File (not on NFS, just local) [I have traced this from /proc/PROCID/fd/FILE_ID which links to the session file] I suppose that there was an php process flock()ing the file, perhaps running into max_execution_time, not unflocking the session file correctly and other processed wanting to write session data. Expected result: ---------------- PHP session handler should have some timeout and/or old file locks should be hard-broken. Actual result: -------------- Forever-Hanging php processes. ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=47640&edit=1
