Hi everyone. I'm working on some application which is using directly block device with direct-IO. When the application writes some patterns and reads it again. The pattern is broken with 32bytes. I think that is due to the data-cache coherent problem. So, I inserted the code dma_cache_inv() before direct-IO(). After the patch, it works well. Could you tell me why the data is broken and why mips-kernel doesn't handle data cache? Thanks for any comments. Best Regards JJ
