Bug #69136 [Com]: Session file empty when session-path on NFS mount

Edit report at https://bugs.php.net/bug.php?id=69136&edit=1 ID: 69136 Comment by: me at kelunik dot com Reported by: maggus dot staab at googlemail dot com Summary: Session file empty when session-path on NFS mount Status: Open Type: Bug Package: Session related Operating System: Ubuntu 14 LTS PHP Version: 5.6.6 Block user comment: N Private report: N New Comment: Same thing happens with a NTFS partition mounted with under Ubuntu 14.10 ntfs defaults,umask=0000,permissions,uid=1000 0 0. Previous Comments: ------------------------------------------------------------------------ [2015-02-27 10:59:29] maggus dot staab at googlemail dot com 1) I dont understand why the session cannot be written, since I checked is_dir, is_writable and is_readable beforehand. Even setting the dir to "0777" makes it work. 2) when basic things like writing a session doesnt work, I would expect a ERROR instead of a WARNING ------------------------------------------------------------------------ [2015-02-27 10:56:47] maggus dot staab at googlemail dot com Description: ------------ php -v PHP 5.6.5-1+deb.sury.org~trusty+1 Test script: --------------- <?php $path = '/path/to/a/dir/mounted/via/nfs/'; if (!is_dir($path) || !is_writable($path) || !is_readable($path)) { throw new Exception("$path is not a proper dir"); } //ini_set("session.save_path", $path); // neither this works session_save_path($path); // nor this does session_start(); $_SESSION['cnt'] = $_SESSION['cnt']+1; var_dump($_SESSION['cnt']); if ($_SESSION['cnt'] > 1) { echo "<h1>WORKS</h1>"; session_destroy(); } exit(); Expected result: ---------------- on each 2nd request "WORKS" is printed. Actual result: -------------- session is not persisted. session file gets created but does not contain any content. therefore subsequent calls will never echo "WORKS" because session cannot be continued. with default Ubuntu php.ini a error/warning doesnt show up at all. After adding ini_set("display_errors", "On"); error_reporting(E_ALL); I get a warning "Warning: Unknown: Failed to write session data (files). Please verify that the current setting of session.save_path is correct (/XX..ZZ..YY/tmp/www/session/) in Unknown on line 0" ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=69136&edit=1