Hi Charles, > The test harness code is in yaffs2/direct/tests. Read the README which should > be reasonably up to date. Thanks for that - I'd originally ignored this test-dir as they were under the 'direct' sub-tree wheras we're using YAFFS on top of MTD! Is there a variant of these tests we can run on a non-simulated environment? If not I guess this is an opportunity for us to roll-our-own! Background : I'm looking at a device that's been deployed for a while with a version of YAFFS from dec 2006. on around 1% of deployed devices we've seen files magically duplicating themselves in the fs (same name, same inode number!) - we can't manually reproduce so trying some other tests was the next step to seeing if we could attempt to reproduce via different methods of abuse...! Cheers, ~Pev