What does it imply if debugfs says Can't read next inode when doing inode scan?

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http://serverfault.com – I've got some bad sectors pending reallocation (based on smartmontools reports), and I'm trying to find out which file the sector is currently related to so that I can restore from a backup or such or determine how safe it is to write over it. # debugfs debugfs 1.41.14 (22-Dec-2010) debugfs: open /dev/sda3 debugfs: testb 28475580 Block 28475579 marked in use debugfs: icheck 28475580 icheck: Can't read next inode while doing inode scan debugfs: quit After the calculations, the block in question is 28475579. testb says it's in use, but icheck keeps on giving me that error "C (HowTos)