Hi > Did you erase the flash before using it for YAFFS2? The stuff below looks a > bit like this was not done, but more likely it is a tags corruption issue, > either in the low level stuff or in mtd. Yes, I did erase flash by using flash_eraseall utility from mtd. Maybe I misconfigured something? My experience with linux is that if it does not work - check configuration first and only then dig into the source. Sergei Sharonov