On 2012-06-14 20:45, Charles Manning wrote: > On Thursday 14 June 2012 21:06:26 Ezio Zhang wrote: > > You will have to tell us much more than that. Are you using the latest code? > Are you using Linux or something else?... > > -- CHarles > > i used yaffs in uc/os II,the source code is 2012-04-03 version. i just do the operations that as above. these operation are capsuled in a thread that running very frequently . and run yaffs_bg_gc() as a background thread that running every ten minutes ---- Regards, Ezio.