An interesting mysql error has popped up on an ExpressionEngine site I'm running recently. When trying to access the admin control panel I get the following mysql error:
Error Number: 126 Incorrect key file for table '/tmp/#sql_XXX_XX.MYI'; try to repair it
It's a VPS and I have root access. Confusingly, there appears not to be any such file in the /tmp/ directory. A bit of googling has shown me that it could be an issue with space on this partition but the tmp folder is almost empty (only a few k) and I'm at a bit of a loss as to what to do next. Repairing said table also yielded no joy.