Earlier I reported about two crashes related to MySQL 5.0.22 on Ubuntu 6.06 LTS.
I think those bugs show a lack of testing on the side of Cannonical/Ubuntu. And for MySQL there is a quite good test suite available, so it's not rocketsience.
There are multiple reasons why you could use the MySQL Test Framework: 1. Test if bug you previously experienced exists in the version you are using or planning to use. 2. Test if configuration changes have a good or bad result on the stability of mysqld. 3. Test if important functions still return the correct results (especially importand for financial systems)
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