Path: utzoo!censor!geac!torsqnt!hybrid!scifi!bywater!uunet!midway!news
From: martin@cs.uchicago.edu (Charles Martin)
Newsgroups: comp.sys.mac.programmer
Subject: Macsbug and DRVR Puzzles!
Message-ID: <1991Jan20.183701.27351@midway.uchicago.edu>
Date: 20 Jan 91 18:37:01 GMT
Sender: news@midway.uchicago.edu (News Administrator)
Reply-To: martin@cs.uchicago.edu (Charles Martin)
Organization: University of Chicago
Lines: 25

Puzzle 1: In Macsbug 6.1, I did 'log hd:foo' and got the message:

  *** MacsBug was damaged by the command ***

Puzzle 2: Subsequently trying the 'drvr' command, I got:

 Displaying Driver Control Entries
  dRef dNum Driver      Flg  Ver qHead Storage Window Dely  Drvr at DCE at
  fffe 0001 .Sony       bPO   #2 000000 000000 000000 0000   86c3e0 800043d0
     that's strange:  dCtlRefNum = fffb
  fffc 0003 .Sound      bPO   #0 000000 000000 000000 0000   870570 8000473c
  fffb 0004 .Sony       bPO   #2 000000 000000 000000 0000   86c3e0 800043d0
  fffa 0005 .AIn        bPC   #3 000000 000000 000000 0000 4086abca 800049b0
  fff9 0006 .AOut       bPC   #3 000000 000000 000000 0000 4086abe2 800049ec
  fff8 0007 .BIn        bPC   #3 000000 000000 000000 0000 4086abfa 80004a28
  fff7 0008 .BOut       bPC   #3 000000 000000 000000 0000 4086ac12 80004a64
  ffdf 0020 .SCSI00     bPO   #0 000000 007e0c 000000 0000   0066f6 80007a0c
  ffcf 0030 .Display_VI bHO   #0 000000 002124 000000 0000 80005344 80004790
  #64 Unit Table entries, #9 in use, #55 free
 Closing log

IM I says unit 1 is the HD driver for the Lisa.  Why is the unit 4
entry repeated in unit 1?  Randomness or higher purpose?

Charles Martin // martin@cs.uchicago.edu