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strange recurring editor bug?



                         (2 0 (NIL 0) (NIL :ITALIC NIL) "CPTFONTI")
Fonts: CPTFONT, CPTFONTCB, CPTFONTI


As I was working on darth-vader here in rm 829, every few minutes I got this
strange error in ZMACS.  The first few times, I aborted out of it, but now I 
cannot, because it just keeps coming back!

The error say something about CAR failing and then some DW:: function.

Help!!!  Here's a dump.
--Steven Eppinger
eppinger@oz

In Symbolics 3650 Zwei in Genera 7.0G1, IP-TCP 52.0, 7-0-Patches 1.17,
MAC 6.5, Fortran 6.3, Pascal 25.3, Prolog 17.0, microcode 3650-MIC 394,
FEP 206, FEP0:>g206-lisp.flod(6), FEP0:>g206-loaders.flod(6),
FEP0:>g206-debug.flod(1), FEP0:>g206-info.flod(6),
Machine serial number 30083, on Lisp Machine Darth Vader:



1Break: 
0While in the function PROCESS-WAIT  TV:KBD-IO-BUFFER-INPUT-WAIT  (FLAVOR:METHOD :INPUT-WAIT TV:STREAM-MIXIN)

The condition signalled was ZL:BREAK

1PROCESS-WAIT0:  2(from SYS:PATCH;SYSTEM-349-98)
0   Arg 0 (SI:WHOSTATE): "Tyi"
   Local 0 (SI:WHOSTATE): #<BREAK 44004670>
   Arg 1 (FUNCTION): #<DTP-COMPILED-FUNCTION (:INTERNAL TV:KBD-IO-BUFFER-INPUT-WAIT 0) 146703576>
   Local 1 (FUNCTION): #<DTP-LOCATIVE 52702337>
   Rest arg (SI:ARGUMENTS): (#<IO-BUFFER empty, State: NIL 160000712> #<DTP-COMPILED-FUNCTION (:INTERNAL SI:READ-CHARACTER-INTERNAL 0) 146057763> #<EDITOR-TYPEOUT-WINDOW Editor Typeout Window 3 1005301 exposed> NIL #<DTP-LOCATIVE 1005410> NIL NIL 3890709 T)
   Local 2 (SI:ARGUMENTS): #<DTP-LOCATIVE 52702336>
   Special SYS:INHIBIT-SCHEDULING-FLAG: NIL

1TV:KBD-IO-BUFFER-INPUT-WAIT0:  (P.C. = 34)  2(from SYS:PATCH;SYSTEM-349-98)
0   Arg 0 (TV:BUFFER): #<IO-BUFFER empty, State: NIL 160000712>
   Arg 1 (TV:WHOSTATE): "Tyi"
   Arg 2 (FUNCTION): #<DTP-COMPILED-FUNCTION (:INTERNAL SI:READ-CHARACTER-INTERNAL 0) 146057763>
   Rest arg (TV:ARGUMENTS): (#<EDITOR-TYPEOUT-WINDOW Editor Typeout Window 3 1005301 exposed> NIL #<DTP-LOCATIVE 1005410> NIL NIL 3890709 T)

1(FLAVOR:METHOD :INPUT-WAIT TV:STREAM-MIXIN)0:  (P.C. = 35)
   Arg 0 (SELF): #<EDITOR-TYPEOUT-WINDOW Editor Typeout Window 3 1005301 exposed>
   Arg 1 (SYS:SELF-MAPPING-TABLE): #<Map to flavor TV:STREAM-MIXIN 174327532>
   Arg 2 (FLAVOR::.GENERIC.): :INPUT-WAIT
   Arg 3 (TV:WHOSTATE): "Tyi"
   Arg 4 (FUNCTION): #<DTP-COMPILED-FUNCTION (:INTERNAL SI:READ-CHARACTER-INTERNAL 0) 146057763>
   Rest arg (TV:ARGUMENTS): (#<EDITOR-TYPEOUT-WINDOW Editor Typeout Window 3 1005301 exposed> NIL #<DTP-LOCATIVE 1005410> NIL NIL 3890709 T)

1(:INTERNAL (FLAVOR:COMBINED :INPUT-WAIT DW:DYNAMIC-WINDOW) 0)0:  (P.C. = 11)
   Arg 0 (SELF): #<EDITOR-TYPEOUT-WINDOW Editor Typeout Window 3 1005301 exposed>
   Arg 1 (SYS:SELF-MAPPING-TABLE): #<Map to flavor DW:DYNAMIC-WINDOW 174327312>
   Arg 2 (FLAVOR::.GENERIC.): :INPUT-WAIT
   Rest arg (FLAVOR::.DAEMON-CALLER-ARGS.): ("Tyi" #<DTP-COMPILED-FUNCTION (:INTERNAL SI:READ-CHARACTER-INTERNAL 0) 146057763> #<EDITOR-TYPEOUT-WINDOW Editor Typeout Window 3 1005301 exposed> NIL #<DTP-LOCATIVE 1005410> NIL NIL 3890709 T)

1(FLAVOR:WHOPPER :INPUT-WAIT SI:INTERACTIVE-STREAM)0:  (P.C. = 25)
   Arg 0 (SELF): #<EDITOR-TYPEOUT-WINDOW Editor Typeout Window 3 1005301 exposed>
   Arg 1 (SYS:SELF-MAPPING-TABLE): #<Map to flavor SI:INTERACTIVE-STREAM 174327374>
   Arg 2 (FLAVOR::.WHOPPER-CONTINUATION.): #<DTP-COMPILED-FUNCTION (:INTERNAL (FLAVOR:COMBINED :INPUT-WAIT DW:DYNAMIC-WINDOW) 0) 147512510>
   Arg 3 (FLAVOR::.OLD-SELF-MAPPING-TABLE.): #<Map to flavor DW:DYNAMIC-WINDOW 174327312>
   Arg 4 (FLAVOR::.GENERIC.): :INPUT-WAIT
   Arg 5 (SI:WHOSTATE): NIL
   Arg 6 (FUNCTION): #<DTP-COMPILED-FUNCTION (:INTERNAL SI:READ-CHARACTER-INTERNAL 0) 146057763>
   Rest arg (SI:ARGUMENTS): (#<EDITOR-TYPEOUT-WINDOW Editor Typeout Window 3 1005301 exposed> NIL #<DTP-LOCATIVE 1005410> NIL NIL 3890709 T)

1(FLAVOR:COMBINED :INPUT-WAIT DW:DYNAMIC-WINDOW)0:  (P.C. = 13)
   Arg 0 (SELF): #<EDITOR-TYPEOUT-WINDOW Editor Typeout Window 3 1005301 exposed>
   Arg 1 (SYS:SELF-MAPPING-TABLE): #<Map to flavor DW:DYNAMIC-WINDOW 174327312>
   Arg 2 (FLAVOR::.GENERIC.): :INPUT-WAIT
   Rest arg (FLAVOR::.DAEMON-CALLER-ARGS.): (NIL #<DTP-COMPILED-FUNCTION (:INTERNAL SI:READ-CHARACTER-INTERNAL 0) 146057763> #<EDITOR-TYPEOUT-WINDOW Editor Typeout Window 3 1005301 exposed> NIL #<DTP-LOCATIVE 1005410> NIL NIL 3890709 T)

1SI:READ-CHARACTER-INTERNAL0:  (P.C. = 150)  2(from SYS:PATCH;SYSTEM-349-98)
0   Arg 0 (SI:STREAM): #:TERMINAL-IO-SYN-STREAM
   Arg 1 (SI:PROMPT-X): 8
   Arg 2 (SI:PROMPT-Y): 3458
   Rest arg: (:ANY-TYI T :WHOSTATE NIL :TIMEOUT NIL :NOTIFICATION T :REFRESH NIL ...)

1(:INTERNAL SYS:READ-CHARACTER 0 SI:WITH-PROCESS-INTERACTIVE-PRIORITY-BODY)0:  (P.C. = 23)
   Arg 0 (COMPILER:.LEXICAL-ENVIRONMENT-POINTER.): #<DTP-LOCATIVE 52702052>

   Special SI:SCHEDULER-EXISTS: T
   Special SYS:SCHEDULER-STACK-GROUP: #<STACK-GROUP Scheduler 26215452>
   Special SYS:%CURRENT-STACK-GROUP: #<STACK-GROUP ZMACS-WINDOWS 26215774>
   Special SYS:CURRENT-PROCESS: #<COROUTINING-PROCESS ZMACS-WINDOWS 26357274>

2Rest of stack:
1(FLAVOR:METHOD SI:WITH-PROCESS-INTERACTIVE-PRIORITY-INTERNAL SI:PROCESS)0:  (P.C. = 22)
1SYS:READ-CHARACTER0:  (P.C. = 105)
1CP::READ-ACCELERATOR-CHAR0:  (P.C. = 113)
1CP:READ-ACCELERATED-COMMAND0:  (P.C. = 443)
1(:INTERNAL DBG:DEBUGGER-COMMAND-LOOP 0 DBG:READ-COMMAND-INTERNAL)0:  (P.C. = 47)
1DBG:DEBUGGER-COMMAND-LOOP0:  (P.C. = 140)
1DBG:DEBUGGER-TOP-LEVEL0:  (P.C. = 1267)2  (from SYS:PATCH;SYSTEM-349-45)
1(:INTERNAL DBG:ENTER-DEBUGGER 0 SI:WITH-PROCESS-INTERACTIVE-PRIORITY-BODY)0:  (P.C. = 6)
1(FLAVOR:METHOD SI:WITH-PROCESS-INTERACTIVE-PRIORITY-INTERNAL SI:PROCESS)0:  (P.C. = 22)
1DBG:ENTER-DEBUGGER0:  (P.C. = 32)
1DBG:DEBUGGER-HANDLER-HANDLE-CONDITION0:  (P.C. = 7)
1DBG:DEBUGGER-HANDLER0:  (P.C. = 12)
1(FLAVOR:METHOD DBG:SIGNAL-CONDITION CONDITION)0:  (P.C. = 156)
1(FLAVOR:COMBINED DBG:SIGNAL-CONDITION DBG:WRONG-TYPE-ARGUMENT-TRAP)0:  (P.C. = 20)
1SIGNAL0:  (P.C. = 23)
1DBG:SIGNAL-TRAP0:  (P.C. = 13)
1SYS:MICROCODE-ERROR-HANDLER0:  (P.C. = 75)
1DBG:FUNCTION-AND-PC-FROM-PRESENTATION-NODE0:  (P.C. = 127)
1(DW::PRESENTATION-MOUSE-HANDLER ZWEI:SET-BREAKPOINT :TESTER)0:  (P.C. = 23)
1DW::TEST-HANDLER0:  (P.C. = 56)2  (from SYS:PATCH;SYSTEM-349-115)
1(:INTERNAL (:INTERNAL DW::FIND-INNERMOST-SENSITIVE-PRESENTATION 2 DW::DO-ONE-CONTEXT) 0)0:  (P.C. = 101)
1DW::MAP-OVER-HANDLER-ALIST-AND-GESTURES-IN-CONTEXT0:  (P.C. = 216)
1(:INTERNAL DW::FIND-INNERMOST-SENSITIVE-PRESENTATION 2 DW::DO-ONE-CONTEXT)0:  (P.C. = 37)
1(:INTERNAL DW::MAP-OVER-INPUT-CONTEXTS 0 DW::SEARCH-ONE-PRESENTATION-INPUT-CONTEXT)0:  (P.C. = 13)
1DW::MAP-OVER-INPUT-CONTEXTS0:  (P.C. = 14)
1DW::FIND-INNERMOST-SENSITIVE-PRESENTATION0:  (P.C. = 76)2  (from SYS:PATCH;SYSTEM-349-25)
1(FLAVOR:METHOD :UPDATE-HIGHLIGHTED-PRESENTATION DW::DYNAMIC-MOUSE-MIXIN)0:  (P.C. = 127)2  (from SYS:PATCH;SYSTEM-349-25)
1DW::UPDATE-HIGHLIGHTED-PRESENTATION0:  (P.C. = 35)
1SI:READ-CHARACTER-INTERNAL0:  (P.C. = 157)2  (from SYS:PATCH;SYSTEM-349-98)
1(:INTERNAL SYS:READ-CHARACTER 0 SI:WITH-PROCESS-INTERACTIVE-PRIORITY-BODY)0:  (P.C. = 23)
1(FLAVOR:METHOD SI:WITH-PROCESS-INTERACTIVE-PRIORITY-INTERNAL SI:PROCESS)0:  (P.C. = 22)
1SYS:READ-CHARACTER0:  (P.C. = 105)
1(:INTERNAL (:INTERNAL ZWEI:EDITOR-INPUT 1 SI:WITH-PROCESS-INTERACTIVE-PRIORITY-BODY) 0 ZWEI:DO-IT)0:  (P.C. = 70)
1(:INTERNAL ZWEI:EDITOR-INPUT 1 SI:WITH-PROCESS-INTERACTIVE-PRIORITY-BODY)0:  (P.C. = 70)
1(FLAVOR:METHOD SI:WITH-PROCESS-INTERACTIVE-PRIORITY-INTERNAL SI:PROCESS)0:  (P.C. = 22)
1ZWEI:EDITOR-INPUT0:  (P.C. = 73)
1(FLAVOR:METHOD :EDIT ZWEI:EDITOR)0:  (P.C. = 254)
1(:INTERNAL (FLAVOR:COMBINED :EDIT ZWEI:ZMACS-TOP-LEVEL-EDITOR) 1)0:  (P.C. = 20)
1(:INTERNAL (FLAVOR:WHOPPER :EDIT ZWEI:EDITOR) 0 SI:WITH-PROCESS-INTERACTIVE-PRIORITY-BODY)0:  (P.C. = 7)
1(FLAVOR:METHOD SI:WITH-PROCESS-INTERACTIVE-PRIORITY-INTERNAL SI:PROCESS)0:  (P.C. = 40)
1(FLAVOR:WHOPPER :EDIT ZWEI:EDITOR)0:  (P.C. = 20)
1(FLAVOR:COMBINED :EDIT ZWEI:ZMACS-TOP-LEVEL-EDITOR)0:  (P.C. = 317)
1ZWEI:ZMACS-WINDOW-TOP-LEVEL0:  (P.C. = 55)2  (from SYS:PATCH;SYSTEM-349-88)
1SI:PROCESS-TOP-LEVEL0:  (P.C. = 45)