2.9bsd clock priority question

[goldberg at uiucdcs.CS.UIUC.EDU]

Index:	sys/sys/clock.c 2.9bsd

In V7, it appears that callout processing was done at spl5.  In 2.9, the
call to spl5 has been removed from clock.c, leading me to believe that
callouts are now processed at spl7.  Is there any motivation for this?  I
think that this is messing up the a/d board driver (which is spl6), and
I am wondering if putting back the spl5 will screw something up.  Most of
the code in clock.c looks the same in both versions (excepting code for
metering, load average, and such).  Any wizards out there have any suggestions?
Thanks in advance...

					Phil Goldberg
				     goldberg at cs.uiuc.edu
				     goldberg at uiuc.{arpa,csnet}
			    ...!{convex,pur-ee,ihnp4}!uiucdcs!goldberg