mkfs.ext3 takes my machine (3GHz Xeon with SATA disks) 8 minutes to copy a core-image-sato-sdk rootfs (totalling 3GB) into the filesystem image. During this time CPU usage is high and disk IO is rarely more than 600K/s. I understand this is an apples-and-oranges thing but cp -a && sync of the same rootfs takes 30 seconds.
Mark as a duplicate of the newer bug with more details.
Actually marking as a dup this time. *** This bug has been marked as a duplicate of bug 7341 ***