Comment 2 for bug 446150

Hello Geert. I retried and got the same errors. I started mysqld by hand with a simple command line, errors too.
Steps
cd mysql-5.1/sql # using debug build, Linux x64
 ./mysqld --datadir=../data --language=./share/english/ --skip-grant-tables --skip-innodb --port=3307 --socket=/tmp/mysql.sock --pid-file=/tmp/a.pid
and then:
python unittests.py -H localhost -S /home/mysql_src/bzrrepos/mysql-5.1/mysql-test/var/tmp/mysqld.1.sock -u root -D test -p pep249
and then errors.
I added the same "-p" as you:
python unittests.py -H localhost -S /home/mysql_src/bzrrepos/mysql-5.1/mysql-test/var/tmp/mysqld.1.sock -u root -D test -p pep249
and same errors.