Q:

svn cleanup: sqlite: database disk image is malformed

I was trying to do a svn cleanup because I can't commit the changes in my working copy, and I got the following error: 

sqllite: database disk image is malformed

What can I do right now?

A:

I had the same problem. The following blog post helped me resolve it:
http://www.polak.ro/svn-e200030-sqlite-database-disk-image-is-malformed.html
You do an integrity check on the sqlite database that keeps track of the repository (/.svn/wc.db):
sqlite3 .svn/wc.db "pragma integrity_check"

That should report some errors.
Then you might be able to clean them up by doing:
sqlite3 .svn/wc.db "reindex nodes"
sqlite3 .svn/wc.db "reindex pristine"

If there are still errors after that, you still got the option to check out a fresh copy of the repository to a temporary folder and copy the .svn folder from the fresh copy to the old one. Then the old copy should work again and you can delete the temporary folder.

A:

Integrity check
sqlite3 .svn/wc.db "pragma integrity_check"

Clean up
sqlite3 .svn/wc.db "reindex nodes"
sqlite3 .svn/wc.db "reindex pristine"

Alternatively
You may be able to dump the contents of the database that can be read to a backup file, then slurp it back into an new database file:
sqlite3 .svn/wc.db

sqlite> .mode insert
sqlite> .output dump_all.sql
sqlite> .dump
sqlite> .exit

mv .svn/wc.db .svn/wc-corrupt.db
sqlite3 .svn/wc.db

sqlite> .read dump_all.sql
sqlite> .exit

A:

The SVN cleanup didn't work. The SVN folder on my local system got corrupted. So I just deleted the folder, recreated a new one, and updated from SVN. That solved the problem!

