On 3/4/11 11:54 AM, Stephane Cerveau wrote: > Hi, > > Thanks for your answer. > Here is my steps: > > - mkfs.ext3 /dev/sda1 > - mount /dev/sda1 /mnt/usb > - dd if=/dev/zero of=/mnt/usb/test_file bs=1M count=1025 ( the size is important) > - sync > - rm /mnt/usb/test_file Ok, I had the impression that you were removing the usb key at some point in the test, but I guess not. > Then many errors appears "Ext3-fs error ( device sda1): ext3_free_blocks_sb: bit already cleared for block xxxx" > > I tried to umount/mount the storage but its not working also. > I tried to check the device before removing the file, not working also. you mean that umount/mount/rm gives the same error? As does umount/fsck/mount/rm ? > Indeed with another usb key it's working... > I'm using a kernel 2.6.23 > > The problem does NOT appear with mkfs.ext2 /dev/sda1 before > > What do you advise to do ? Try a much newer kernel, first of all, to see if it's a known, fixed bug. But since it works on another usb key, I still tend to blame the hardware. "bit already cleared" makes it sound like it is reading zeros when it should not be. -Eric > BR > > Stephane. _______________________________________________ Ext3-users mailing list Ext3-users@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/ext3-users