2 hypocrite Oct 21, 2013 08:24

Hi @hypocrite,
Did you tried with Heavy DB maintenance (CHECK & OPTIMIZE). If not, go to System > Maintenance > Tools.
If the hardware is completely out of the table, then please just ignore this comment. I had a similar problem with sessions db tables using other software, at the end, it was related with energy fluctuations and faulty hard drives.
Had to empty the table completely. I wasn't able to reach the data with phpMyAdmin either.
Will have to monitor the situation.
Trying to fix the problem by truncating the tables.