yaffs问题

linux-2.6.14的内核，yaffs2文件，128M Nandflash

linux  reboot  大概6次左右，进入文件系统后，出现下面信息，而且reboot次数越多，出现的提示信心越多，我手动erase后，就没有了，
但是，reboot  几次后，现象依旧，怀疑是内核的问题，请大侠指教！！！

**>> yaffs chunk 24479 was not erased

**>> yaffs chunk 24480 was not erased

**>> yaffs chunk 24481 was not erased

**>> yaffs chunk 24482 was not erased

**>> yaffs chunk 24483 was not erased

**>> yaffs chunk 24484 was not erased

**>> yaffs chunk 24485 was not erased

**>> yaffs chunk 24486 was not erased

**>> yaffs chunk 24487 was not erased

**>> yaffs chunk 24488 was not erased

**>> yaffs chunk 24489 was not erased

**>> yaffs chunk 24490 was not erased

**>> yaffs chunk 24491 was not erased

**>> yaffs chunk 24492 was not erased

**>> yaffs chunk 24493 was not erased

**>> yaffs chunk 24494 was not erased

**>> yaffs write required 17 attempts

这个不是我们公司的产品，不好评论，鉴定完毕！