Customers can't log in to panel

[ArsenyR]

Hi all

Customers try to log in to panel. In response they get

SQLSTATE[HY000]: General error: 1 Can't create/write to file '/tmp/#sql_3773_0.MYI' (Errcode: 122)

0: Pdo.php:238
Zend_Db_Statement_Pdo->_execute(array)
1: Statement.php:283
Zend_Db_Statement->execute(array)
2: Abstract.php:433
Zend_Db_Adapter_Abstract->query(string 'DESCRIBE `sessions`', array)
3: Abstract.php:230
Zend_Db_Adapter_Pdo_Abstract->query(string 'DESCRIBE `sessions`')
4: Mysql.php:136
Zend_Db_Adapter_Pdo_Mysql->describeTable(string 'sessions', NULL null)
5: Abstract.php:696
Zend_Db_Table_Abstract->_setupMetadata()
6: Abstract.php:722
Zend_Db_Table_Abstract->_getCols()
7: Abstract.php:762
Zend_Db_Table_Abstract->_setupPrimaryKey()
8: DbTable.php:517
Zend_Session_SaveHandler_DbTable->_getPrimary(string '3b8f018586d33fd3954159d4b347caeb')
9: DbTable.php:316
Zend_Session_SaveHandler_DbTable->read(string '3b8f018586d33fd3954159d4b347caeb')
10: SaveHandler.php:26
CommonPanel_Session_SaveHandler->read(string '3b8f018586d33fd3954159d4b347caeb')
11: :
session_start()
12: class.Session.php:312
Session->registerSession(integer '1', string 'admin', string '91.212.60.11', NULL null, NULL null)
13: cmd_loginup.php:131
createSessionCommon(integer '1', string 'admin', boolean true, string '91.212.60.11', NULL null, NULL null)
14: cmd_loginup.php:318
createSessionAdmin(string 'admin', string '*********', string '***************************', boolean false)
15: cmd_loginup.php:77
createSession(string 'admin', string '*********')
16: login_up.php3:36

I found a solution in http://kb.odin.com/en/11135 but when i checked a /tmp dir all permissions were correct.

[root@plesk /]# ls -ld /tmp/
drwxrwxrwt 5 root root 36864 Mar 22 14:49 /tmp/
[root@plesk /]#

Please help me with this problem

Thank you

Ars

 

[AtifQ]

You may have already done this but try this:

chown root:root /tmp
chmod 1777 /tmp

and then restart mysqld:

/etc/init.d/mysqld restart

What happens now?