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Lisp stopped itself...
Date: Sat, 14 Sep 91 22:05 PDT
From: Scott_Busse%mindlink.bc.ca@Warbucks.AI.SRI.COM (Scott Busse)
On about the fifth time I have booted this machine (a 3650 with FPA,
736 Meg CDC drive, running Genera 7.1), I have come up against an error which
will not allow Lisp to run.
Lisp stopped itself.
Halt reason ("Disk Error ~D, operation ~D, ~
<211><211><211> Unit ~D, cylinder ~D, head ~D, sector ~D,
continue to retry." " %DISK-ERROR-SEARCH 11(8) 0(8) 2402(8) 21(8))
My initial idea was that you had a bad disk block. However, the disk
address you gave was on unit 9 (#o11), which seems unlikely. Perhaps
something else is wrong, or maybe you just mistyped it. If the former,
you are your own, but if its the latter, you can do
(si:dpn-from-address #o11 #o0 #o2402 #o21))))
substituting in the right disk address. Since this is a repeatable
error, there probably really is a bad block in one of your paging files
or world loads. SI:FIX-FEP-FILE will scan the file and ask you if you
want to splice out the bad block. The only tricky thing is that if the
bad block is in a critical place, you may have to use different
combinations of paging files or a different world load in order to get
Lisp running cleanly enough so that you can fix the problem. And if the
problem is in a world load, you will have to get another copy of the
world after you nuke the bad block.
Note that if you start getting a lot of bad blocks your disk is probably
moribund, but it may last months or years before it goes completely.
However, I would be sure to make frequent backups and have an alternate
disk installed (with worlds, microcode, etc) before it goes to that
great disk farm in the sky.