ID: 26005
Comment by: jsnajdr at kerio dot com
Reported By: parsnip11 at hotmail dot com
Status: No Feedback
Bug Type: Session related
Operating System: windows 2000 iis 5
PHP Version: 4CVS-2003-10-31
New Comment:
This is a patch that stopped crashing for me:
*** php-4.3.4/ext/session/session.c Wed Oct 8 12:25:39 2003
--- php-4.3.4-n/ext/session/session.c Tue Dec 9 11:36:24 2003
***************
*** 1543,1548 ****
--- 1543,1556 ----
}
}
+ static void php_session_init_globals(php_ps_globals *ps_globals
TSRMLS_DC)
+ {
+ ps_globals->id = NULL;
+ ps_globals->session_status = php_session_none;
+ ps_globals->mod_data = NULL;
+ ps_globals->http_session_vars = NULL;
+ }
+
static void php_rinit_session_globals(TSRMLS_D)
{
PS(id) = NULL;
***************
*** 1618,1624 ****
#ifdef ZTS
php_ps_globals *ps_globals;
! ts_allocate_id(&ps_globals_id, sizeof(php_ps_globals), NULL, NULL);
ps_globals = ts_resource(ps_globals_id);
#endif
--- 1626,1632 ----
#ifdef ZTS
php_ps_globals *ps_globals;
! ts_allocate_id(&ps_globals_id, sizeof(php_ps_globals),
(ts_allocate_ctor) php_session_init_globals, NULL);
ps_globals = ts_resource(ps_globals_id);
#endif
Previous Comments:
------------------------------------------------------------------------
[2004-02-09 18:44:35] admin at sistemasdinamicos dot com dot ar
I'm also having this issue.
Database error:
MySQL Error: 1062 (Duplicate entry
'Sid-dec6275d91b72031c6db12dfd7f59e9e' for key 1)
Session halted.
Warning: Unknown(): A session is active. You cannot change the session
module's ini settings at this time. in Unknown on line 0
I'm using phplib 7.4 new session_custom. It uses
session_module_name('user') to use phplib's ct_sql container to store
session data in db.
The error occurs when I reload the page too fast. Another strange
thing, it happens in Opera 7, not in IE 6 (I think because IE can't
reload as fast as Opera).
When I use $sess->freeze() phplib's function at the end of the script
the error never happens, no matter how fast you reload the page. But I
don't want to use it, because I much prefer use directly
$_SESSION['var'] and if you do $sess->freeze() session variables got
screwed and if you don't the mentioned error appear.
Using php 4.3.4 and Apache 2.0.40
Adio!
------------------------------------------------------------------------
[2004-01-02 07:32:15] mtimdog at comcast dot net
Let me rephrase that. Oscommerce's session handling code is what
breaks php 4.3.x, I downgraded to 4.2.3 and no problem. Note, was a
default install of oscommerce from oscommerce.com. Try yourself, takes
roughly 15 minutes to install (most likely < 5).
------------------------------------------------------------------------
[2003-12-31 13:19:29] mtimdog at comcast dot net
I recently upgraded to 4.3.4 on my laptop (using apache) and am getting
this error as well. to produce this code I have a simple redirect
statement
<meta http-equiv="refresh" content="1;index.php">
that redirects from index.html to index.php.
On the index.php page (oscommerce site), it makes/resets the session
variable or whatever oscommerce does.
------------------------------------------------------------------------
[2003-12-13 19:32:54] mrjack at online dot fr
I have a similar problem on a linux box running version 4.3.4 and
apache 2.0.48.
I get this in my apache logs :
PHP Warning: Unknown(): A session is active. You cannot change the
session module's ini settings at this time. in Unknown on line
1919973221
And after this i must restart the web server ...
------------------------------------------------------------------------
[2003-12-08 14:29:29] jsnajdr at kerio dot com
I am experiencing this bug too and I think I found its cause. It can
occur when PHP is used in a multithreaded program - I embed PHP
interpreter in my own multithreaded server using a custom SAPI module,
original submitter of this bug uses ISAPI module, which is also
multithreaded.
The 'Session is active' warning is generated by the
PHP_INI_MH(OnUpdateSaveHandler) function that checks
PS(session_status), i.e. the session module globals structure. This
handler is also called when calling TSRMLS_FETCH() (which is a define
for ts_resource_ex() call) before executing a PHP script. See this call
stack from gdb:
#0 OnUpdateSaveHandler (entry=0xb303890, new_value=0x8700f48 "files",
new_value_length=5, mh_arg1=0x0, mh_arg2=0x0, mh_arg3=0x0, stage=1,
tsrm_ls=0xb2dce18)
at /root/src/php-4.3.4/ext/session/session.c:93
#1 0x0865414c in zend_ini_refresh_cache (p=0xb303890, stage=1,
tsrm_ls=0xb2dce18) at /root/src/php-4.3.4/Zend/zend_ini.c:177
#2 0x0865006f in zend_hash_apply_with_argument (ht=0xb300ac8,
apply_func=0x8654124 <zend_ini_refresh_cache>, argument=0x1,
tsrm_ls=0xb2dce18)
at /root/src/php-4.3.4/Zend/zend_hash.c:717
#3 0x0865417d in zend_ini_refresh_caches (stage=1, tsrm_ls=0xb2dce18)
at /root/src/php-4.3.4/Zend/zend_ini.c:185
#4 0x08653f88 in zend_copy_ini_directives (tsrm_ls=0xb2dce18) at
/root/src/php-4.3.4/Zend/zend_ini.c:104
#5 0x0864b574 in zend_new_thread_end_handler (thread_id=4423709,
tsrm_ls=0xb2dce18) at /root/src/php-4.3.4/Zend/zend.c:374
#6 0x0862724f in allocate_new_resource
(thread_resources_ptr=0xabac72c, thread_id=4423709) at
/root/src/php-4.3.4/TSRM/TSRM.c:282
#7 0x08627305 in ts_resource_ex (id=0, th_id=0x0) at
/root/src/php-4.3.4/TSRM/TSRM.c:341
But this handler reads unitialized memory in the new thread's
ps_globals - the TSRM resource has NULL constructor and TSRMLS_FETCH is
called before php_request_startup(), where all the modules are
activated and where the PHP_RINIT_FUNCTION(session) is called to
construct the structure.
Solution: the ps_globals resource must have a non-null constructor
registered in ts_allocate_resource() call in ext/session/session.c
------------------------------------------------------------------------
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http://bugs.php.net/26005
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