Instead of writing partial-segments synchronously when sync is requested,
write them async, but wait for vp->v_numoutput to drop to zero if the
calling semantics require it. That way, even if we might have to wait,
nobody else is required to wait with us.
- use ofprint() for debug output so we have a chance to see it
- do not BAT-map anything beyond 0xff000000 - my 43P gets quite grouchy if we do
- copy EDID properties from OF like macppc does, for things like mach64 where
X can program video modes but can't (relably) do DDC
gcc is not smart enough to realize ret != 0 and ret == 0 guarantee that
exitcode will be either initilized or the code that uses it will not
be reached.
sysctl.7: add a kern.entropy.* reference to summary table
(Where sub-nodes are a mix of writable and non-writable, the convention
appears to be "yes" in summary, which makes the most sense, so
following suit.)