Number: 1397

Date: 12-Jun-84 16':32':46

Submitter: JonL.pa

Source: JonL.pa

Subject: BIGREFCNT death in Carol sysout on DLion

Assigned To: JonL.pa

Attn: 

Status: Declined

In/By: 

Problem Type: Bug

Impact: Fatal

Difficulty: Moderate

Frequency: Once

Priority: Hopefully

System: Language Support

Subsystem: Storage Formats/Mgt

Machine: 1132

Disk: 

Lisp Version: 11-Jun-84 10':03':07

Source Files: 

Microcode Version: 5124

Memory Size: 4096

File Server: 

Server Software Version: 

Disposition: Finally, PTS swapped out the processor board in my DLion, and errors of the sort reported herein seem to have ceased.  -- JonL --  15-Jun-84 --

Description: While loading my init file, my DLion died with a \GC.BIGREFCNT.MISSING under \HTFIND, \NCONC2, LISPXPUT ...  Teleraid unfortunately wasn''t of more help because if failed to printout most frames -- "{cdr of non-list}" was being passed to V\NTYPX or whatever.'
'
-----'
'
Date': 11 Jun 84 22':50 PDT'
From': JonL.pa'
Subject': Re': Lossage ending up in \GC.BIGREFCNT.MISSING from <LispNew> sysout'
In-reply-to': JonL.pa''s message of 11 Jun 84 22':02 PDT'
To': JonL.pa'
cc': vanMelle.pa, Sannella.pa'
'
It didn''t happen a second time, but the second time I "started from scratch" with Partition43Lisp.Othello.  Is there anything that could explain the former lossage?  It got as far as loggin me in and reading ***several*** of my init files (loadings initiated by the basic INIT file).'
'
-- JonL --'
'
-----'
'
Date': 12 Jun 84 10':41 PDT'
From': vanMelle.pa'
Subject': Re': Lossage ending up in \GC.BIGREFCNT.MISSING from <LispNew> sysout'
In-reply-to': JonL.pa''s message of 11 Jun 84 22':50 PDT'
To': JonL.pa'
cc': Charnley, vanMelle.pa, Sannella.pa'
'
Beats me.  The easiest way I know of to get \GC.BIGREFCNT.MISSING is to DelRef something whose refcnt is zero (this a case that microcode might profitably punt on, so that Lisp code could trap it) and then do any other refcnt op on it.  But, of course, that just begs the question of why anyone was doing THAT.  Sounds like random smashing to me.'
'
	Bill'


Workaround: 

Test Case: 

Edit-By: vanMelle

Edit-Date: 21-Jun-84 12':37':20