Comment 258 for bug 131094

For me, apps become sporadically unresponsive (one or another will actually freeze solid for a few seconds at a time) during a simple file copy from one hard drive to another. The source drive is an older IDE drive (ext3) and the destination is a newer SATA drive (ext4). It's a music collection, with files varying in size from 3 MB to 20; the transfer goes about 27MB/sec.

This is with a stock Ubuntu 2.6.31-14 kernel on a fresh AMD64 Karmic.