Mysqld [v5.0.51a] repeatedly restarting upon call to stored procedure

Question

I'm repeatedly getting this in my server error log for MySQld. On my PHP (MySQLi) or SQL client (not sure what they use, maybe MySQLi as well) calling some (not all) stored procedures, this happens and I get the error message "Lost connection to MySQL server during query" (repeatedly). This procedure did actually work yesterday ;(. Thanks.

/usr/sbin/mysqld, Version: 5.0.51a-3ubuntu5.1-log ((Ubuntu)). started with:
Tcp port: 3306  Unix socket: /var/run/mysqld/mysqld.sock
Time                 Id Command    Argument
090508 10:18:43       1 Connect     validuser@user-5440b1b4.wfd77a.dsl.pol.co.u$
                      1 Query       BEGIN
090508 10:18:44       1 Query       call `test_graphstats`(1, 'gbp', 'MONTH')
/usr/sbin/mysqld, Version: 5.0.51a-3ubuntu5.1-log ((Ubuntu)). started with:
Tcp port: 3306  Unix socket: /var/run/mysqld/mysqld.sock
Time                 Id Command    Argument

Answer 1

This seems to have been a problem with one of the lines in the SQL, where I was calling one of my own stored functions. So, I guess a trial and error approach is required.