ID: 16044
Updated by: [EMAIL PROTECTED]
Reported By: [EMAIL PROTECTED]
-Status: Feedback
+Status: Open
Bug Type: Session related
Operating System: Linux 2.4.7
PHP Version: 4.1.2
New Comment:
backtrace as follows (this looks strange to me.. i did compile with
--enable-debug though..):
Program received signal SIGSEGV, Segmentation fault.
zend_hash_add_or_update (ht=0x40506514,
arKey=0x80f96e8 ?\226\017\b\b\227\017\b\f, nKeyLength=135239400,
pData=0xbfffee7c, nDataSize=4, pDest=0x0, flag=2) at
zend_hash.h:197
197 h ^= (ulong) *arKey++;
(gdb)
Continuing.
Cannot find user-level thread for LWP 8505: generic error
(gdb) bt
#0 zend_hash_add_or_update (ht=Error accessing memory address
0xbfffee50: No such process.
) at zend_hash.h:197
Error accessing memory address 0x4042901c: No such process.
Previous Comments:
[2002-03-19 05:07:06] [EMAIL PROTECTED]
To properly diagnose this bug, we need a backtrace to see what is
happening behind the scenes. To find out how to generate a backtrace,
please read http://bugs.php.net/bugs-generating-backtrace.php
Once you have generated a backtrace, please submit it to this bug
report and change the status back to Open.
[2002-03-13 12:24:49] [EMAIL PROTECTED]
db_request() just sends whatever string to the sql database, and
db_single() returns a single result from a specified query, if that
helps.
[2002-03-13 12:23:19] [EMAIL PROTECTED]
Using any handler BUT files for sessions seems to crash the PHP program
nine times out of ten - once the session is registered, however, it
seems to operate just fine.
Here's my session code, hope it will help.
?PHP
require_once 'db.php';
$debug_session = 0;
$SESS_DBNAME = mage;
$SESS_DBTABLE = sessions;
//$SESS_LIFE = get_cfg_var(session.gc_maxlifetime);
$SESS_LIFE = 1800; // session data not refresh could run for 30 min?
function sess_open($save_path, $session_name) {
global $SESS_DBNAME, $SESS_DBTABLE, $debug_session;
return true;
}
function sess_close() {
global $debug_session;
return true;
}
function sess_read($key) {
global $debug_session, $SESS_DBNAME, $SESS_DBTABLE;
if($debug_session) echo sess_read($key)BR;
$q = SELECT svalue FROM $SESS_DBTABLE WHERE sesskey='$key' AND expire
.time();
$dbr = db_request($q);
if($dbr mysql_num_rows($dbr)) {
$q = DELETE FROM $SESS_DBTABLE WHERE sesskey='$key';
db_request($q);
header(Location: expire.php);
exit;
}
$q = SELECT svalue FROM $SESS_DBTABLE WHERE sesskey='$key' AND
expire . time();
$dbr = db_request($q);
if($debug_session) echo msql($q) returns $dbrBR;
if(!$dbr) return false;
$value = mysql_fetch_row($dbr);
if($debug_session) echo sess_read returning $value[0]BR;
return $value[0];
}
function sess_write($key, $val) {
global $user,$debug_session, $SESS_LIFE, $SESS_DBNAME,
$SESS_DBTABLE;
$expire = time() + (60 * 30);
$value = addslashes($val);
$q = INSERT INTO $SESS_DBTABLE VALUES ('$key', $expire, '$value',
'$user[username]', '$user[location]', '$user[activity]');
$dbr = db_request($q);
if($debug_session) echo sess_write($key, $val)BRmsql($q) returns
$dbrBR;
if(!$dbr) {
$q = UPDATE $SESS_DBTABLE SET
location='$user[location]',activity='$user[activity]',username='$user[username]',expire=$expire,svalue='$value'
WHERE sesskey = '$key' AND expire . time();
$dbr = db_request($q);
}
if($debug_session) echo sess_write() returning $dbrBR;
return $dbr;
}
function sess_destroy($key) {
global $debug_session, $SESS_DBNAME, $SESS_DBTABLE;
$q = DELETE FROM $SESS_DBTABLE WHERE sesskey = '$key';
$dbr = db_request($q);
if($debug_session) echo sess_destroy($key)BRmsql($q) return
$dbrBR;
return $dbr;
}
function sess_gc($maxlifetime) {
global $SESS_DBNAME, $SESS_DBTABLE;
$q = DELETE FROM $SESS_DBTABLE WHERE expire . time();
$dbr = db_request($q);
return mysql_affected_rows();
}
function session_dump() {
$session_array = explode(';',session_encode());
$html = !-- SESSION VARIABLE DUMP\n\n;
for($x = 0; $x count($session_array); $x++) {
$html .= $session_array[$x] \n;
}
$html .= --\n\n;
echo $html;
}
function query_present($loc) {
global $SESS_DBTABLE;
$q = location='$loc' and expire .time();
$f = username,activity;
$dbr = db_array($SESS_DBTABLE, $q, $f);
if(!$dbr) return 0;
while($x = each($dbr)) {
$ret[$x['value']['username']] =
