Yesterday while shrinking a filesystem my computer got stock due a hardware failure:
[root@mirror /]# resize2fs -p /dev/mapper/vg_mirror-LogVol03 410G
resize2fs 1.41.14 (22-Dec-2010)
Resizing the filesystem on /dev/mapper/vg_mirror-LogVol03 to 107479040 (4k) blocks.
Begin pass 2 (max = 15391251)
Relocating blocks XXXXXXXXXXXXXXXXXXXXXX------------------
Booted from a DVD in the rescue environment, mounted the filesystem and everything was OK. The size was still the original. I performed an e2fsck and then tried again. Apparently, the “Relocating blocks” part doesn’t cause any corruption if interrupted