> Yes I do. Maybe the ata is buggy. I haven't got any problems with FreeBSD
> or OpenBSD ... I will try the trick.

yes but i don't know what is done wrong so can't fix it. it is only with
HDD device as master and CDROM (or maybe other dev types but not HDD) as
slave. it were fixed in linux few years ago but i can't find the fix
itself. does anybody know something like "linux kernel changes summary"?