https://bugs.freedesktop.org/show_bug.cgi?id=72685
--- Comment #29 from Marek Olšák maraeo@gmail.com ---
- In-place DB flushing is broken with HTILE. The DB->CB copy can be used
instead.
The flushing didn't work because of incorrect macrotile bank rotation of non-zero slices. Sanctuary works fine with the first workaround and added bank rotation, so we're close to closing this bug.