So I mount an ext4 partition like so: # mount -r -t ext2fs /dev/ada2p1 /mnt And then I try to copy some files. This consistently results in a kernel panic. The core dump is here: http://knusbaum.inlisp.org/core.txt Anyone seen anything like this? Thanks, knusbaum at sdf.org SDF Public Access UNIX System - http://sdf.org