ed1: timeout
''.
It's broken. It cannot handle commands on both channels simultaneously.
There's a workaround available now and it is enabled automatically if your system uses this chip. For the details refer to the manual page of the disk driver (man 4 wd).
If you're already running FreeBSD 2.2.1 or 2.2.2 with a
CMD640 IDE controller and you want to use the second channel,
build a new kernel with options "CMD640"
enabled. This
is the default for 2.2.5 and later.
ed1: timeout
''.