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Bug fixed in hairy interrupt table
- To: GSB at MIT-MC, GJC at MIT-MC
- Subject: Bug fixed in hairy interrupt table
- From: JONL at MIT-MC (Jon L White)
- Date: Wed, 1 Apr 81 16:54:00 GMT
- Cc: (BUG LISP) at MIT-MC
- Original-date: 1 APR 1981 1154-EST
The following two bugs were due to a "missing fence-post" in the middle
of the hairy interrupt table (the one that demarcates intervals of special
interrupt code action):
Date: Mon, 31 Mar 81 05:51:54 GMT
Original-Date: 03/31/81 01:51:54 EDT
Subject: Re: how to reproduce that jump to %ISSW.+n
(setq tty-return '(lambda (()) ()))
(progn (sleep 5) (status ospeed))
Then ^Z and ^P the lisp. When ddt feeps, try to p it.
This apparently explains why i see it frequently; many of my init
files read (status ospeed), and i often ^P them while they are loading up.
I've tested this out, and it now works ok. Amazingly, this bug has been
around for months.
Date: 31 MAR 1981 1628-EST
From: GJC at MIT-MC (George J. Carrette)
I've got a bug that shows up when a lisp which was ^P'd wants
the TTY and is P'd. A PURGP error results that seems to have
something to do with the TTY-RETURN and the use of UNWIND-PROTECT.
To get it do
. . .
that is, use the test files specified, and alt-p when it wants the TTY.
I tested this one out too, and it ran ok, with none of the errors which
were visible in the non-corrected version of LISP; however, the output
file which my test run produced (PLASMA;GRTOOL ARDS) is a little bigger
than the one you (GJC) already had there, which I renamed to GRTOOL OARDS.