Number: 1220

Date: 23-May-84 18':06':23

Submitter: vanMelle

Source: vanMelle

Subject: READSYS of sysout file reads pagemap in wrong order

Assigned To: vanMelle


Status: Open


Problem Type: Bug

Impact: Serious

Difficulty: Easy

Frequency: Everytime

Priority: Hopefully

System: Language Support

Subsystem: Bootstrapping and Teleraid



Lisp Version: 14-May-84 20':07':29

Source Files: 

Microcode Version: 5124

Memory Size: 4096

File Server: 

Server Software Version: 

Disposition: [I believe Bill fixed this, the effect was that you couldn''t TeleRaid a large (Loops) sysout]'
["" "26-Aug-84 15':43':50" Assigned% To': Attn': Machine':(1132->) Disposition':]'
["" "25-Sep-84 03':50':51" Description':]

Description: '
If you try to READSYS a sufficiently large sysout file, the READSYS will break with an invalid address error trying to read a portion of the pagemap that it hasn''t mapped yet.  Problem is that READPAGEMAP needs to read the pagemap for ALL of the pagemap pages before it reads the rest of the pagemap.'
This showed up trying to perform a HITATOMS on a Loops Sysout.'
Date': 21 Jun 84 01':00 PDT'
Subject': READSYS'
To': vanMelle'
I had hoped to use the READSYS/RDSYS/VMEM trio to poke around at my mildly-losing sysout, [Eris]<jonl>abc.sysout.  But when I call '
it dies underneath SETVMPTR under VREADPAGEMAP under INITVMEM with '
  "HELP': INVALID ADDR 1384448"'
which is segment 21, page 32 (within segment).'
Any idea what''s going on?'
-- JonL --'


Test Case: 


Edit-Date: 25-Sep-84 03':50':52