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[2014-07-28 09:06 UTC] atze at fem dot tu-ilmenau dot de
Description: ------------ session_regenerate_id() does still regenerate the session id, it does still keep the session data, but the session data is not stored (e.g. in session file). The session data is available in the running PHP process after session_regenerate_id() is called, but it disappears after that. So the next access is processed with an empty session. Related settings in php.ini: session.save_handler = files session.save_path = "/var/lib/php5" (ownership and ACLs are fine) session.use_strict_mode = 0 session.use_cookies = 1 session.use_only_cookies = 1 session.name = PHPSESSID session.auto_start = 0 session.cookie_lifetime = 0 session.cookie_path = / session.cookie_domain = <FQDN of server> session.cookie_httponly = 0 session.serialize_handler = php session.gc_probability = 0 session.gc_divisor = 1000 session.gc_maxlifetime = 1440 session.referer_check = session.cache_limiter = nocache session.cache_expire = 180 session.use_trans_sid = 0 session.hash_function = 0 session.hash_bits_per_character = 5 The code in session.c looks weird, like it is supposed to delete the old session and then create a new one, nothing that looks like "copy the data". Maybe $_SESSION is just by accident still in memory after calling this function, but the documentation clearly states that the session data is preserved by this function call. The relation to bug #61470 is that the file is not created on the end of the PHP processing - it is created never at all. Test script: --------------- <?php session_start(); $session1 = session_id(); if (!isset($_SESSION['init'])) { $_SESSION['init'] = date('Y-m-d H:i:s'); } $init1 = @$_SESSION['init'].'<br/>'; session_regenerate_id(false); echo $init1; echo @$_SESSION['init'].'<br/>'; echo 'session id1 ' . $session1; echo '<br />session id2 ' . session_id(); ?> Expected result: ---------------- Result on PHP 5.4.x: <Timestamp of session start, does not change when pressing F5> <session name (== session name 2 of last access> <session name 2 (must be different)> Actual result: -------------- Result on PHP 5.6RC2: <Current timestamp> <session name (== session name 2 of last access> <session name 2 (must be different)> Patcheswrite-short-circuit-fix (last revision 2014-08-23 14:18 UTC by tyrael@php.net)Pull RequestsHistoryAllCommentsChangesGit/SVN commits
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short testing yields this :( [pid 11627] open("/var/lib/php5/sess_0q1md3dakrcv8g2cu083ef6835", O_RDWR|O_CREAT|O_LARGEFILE|O_NOFOLLOW, 0600) = 6 [pid 11627] fstat64(6, {st_mode=S_IFREG|0600, st_size=0, ...}) = 0 [pid 11627] getuid32() = 33 [pid 11627] flock(6, LOCK_EX) = 0 [pid 11627] fcntl64(6, F_SETFD, FD_CLOEXEC) = 0 [pid 11627] fstat64(6, {st_mode=S_IFREG|0600, st_size=0, ...}) = 0 [pid 11627] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_ACCERR, si_addr=0x8771af7} --- But maybe I broke the build. Will test again, but that will take 2 days.This is the backtrace... can anyone reproduce this? Program received signal SIGSEGV, Segmentation fault. php_sprintf (s=0x8771af7 "%s|%s", format=0xb74c9830 "1crisadvoi8p7pv7r833mn2qr3") at /usr/src/php/php5-5.6.0RC4/main/php_sprintf.c:37 37 s[0] = '\0'; (gdb) bt #0 php_sprintf (s=0x8771af7 "%s|%s", format=0xb74c9830 "1crisadvoi8p7pv7r833mn2qr3") at /usr/src/php/php5-5.6.0RC4/main/php_sprintf.c:37 #1 0x081bfebf in php_session_initialize () at /usr/src/php/php5-5.6.0RC4/ext/session/session.c:522 #2 0x081c0730 in php_session_start () at /usr/src/php/php5-5.6.0RC4/ext/session/session.c:1618 #3 0x081c1619 in zif_session_start (ht=0, return_value=0xb74c948c, return_value_ptr=0xb74ae088, this_ptr=0x0, return_value_used=0) at /usr/src/php/php5-5.6.0RC4/ext/session/session.c:2098 #4 0x083decb0 in execute_internal (execute_data_ptr=0xb74ae094, fci=0x0, return_value_used=0) at /usr/src/php/php5-5.6.0RC4/Zend/zend_execute.c:1512