[Mediawiki-l] Database Error when access Special:log

[Chientai Chen]

Everything in my wiki seems ok, but when I want to check the
Special:Log page, it responsed me:

Database error
A database query syntax error has occurred. This may indicate a bug in
the software. The last attempted database query was:
(SQL query hidden)
from within function "". MySQL returned error "1030: Got error 28 from
storage engine (localhost)".

Can anyone tell me what happens?

Thanks.