Number: 1723

Date: 27-Jul-84 16':04':31

Submitter: Sannella.PA

Source: masinter.pa

Subject: Microcode bug in recent 12K ucode': wild jump in MAKEFILE

Assigned To: 

Attn: charn, purc, licht

Status: Closed

In/By: Harmony

Problem Type: Bug

Impact: Serious

Difficulty: 

Frequency: 

Priority: Hopefully

System: Language Support

Subsystem: Microcode

Machine: 

Disk: 

Lisp Version: 

Source Files: 

Microcode Version: 

Memory Size: 

File Server: 

Server Software Version: 

Disposition: '
["Charnley" "25-Sep-84 11':00':21" Status':(Open->Closed) In/By':]

Description: '
Date': 25 Jul 84 22':09 PDT'
From': masinter.pa'
Subject': Microcode bug in recent 12K ucode'
To': charnley, purcell, lichtenberg.wbst'
cc': LispSupport'
Format': TEdit'
'
MAKEFILE function definition begins at'
'
43,,53010'
'
the code'
'
1055':         12  33 140      FN2       MAKEFILEA0002'
1060':        221              FJUMP->1063'
1061':        150              ''NIL'
1062':        202              JUMP->1066'
'
'
frequently winds up trying to execute at byte 2063 (garbage) rather than 1063. It is possible that returning from MAKEFILEA0002 may have pagefaulted.'


Workaround: 

Test Case: 

Edit-By: Charnley

Edit-Date: 25-Sep-84 11':00':22