[arm64] Fault in CCL::CLASS-CELL-TYPEP during a backtrace

[gmpalter]

This was the second failure reported in #600 and is still present although it no longer happens with the backtrace of (/ 0 0).

Here's an example

[palter@minime-debian ~/CCL/ccl-arm64](3)$ ./arm64cl 
Clozure Common Lisp Version 1.13 (v1.13-397-gf0267f7c) LinuxARM6464

For more information about CCL, please see https://ccl.clozure.com.

CCL is free software.
It is distributed under the terms of the Apache License, Version 2.0.
? (#_memset 0 42 0)
> Error: The value 0 is not of the expected type MACPTR.
> While executing: %FF-CALL, in process listener(1).
> Type :POP to abort, :R for a list of available restarts.
> Type :? for other options.
1 > :b
Origin #<error printing 
> Error: Fault during read of memory address #x30000000015BF4
> While executing: CCL::CLASS-CELL-TYPEP, in process listener(1).
> Type :POP to abort, :R for a list of available restarts.
> Type :? for other options.
2 > 

And, again, this causes an infinite error loop when using --batch

[palter@minime-debian ~/CCL/ccl-arm64](3)$ ./arm64cl --batch
Clozure Common Lisp Version 1.13 (v1.13-397-gf0267f7c) LinuxARM
For more information about CCL, please see https://ccl.clozure.com.

CCL is free software.
It is distributed under the terms 6464
? of the Apache License, Version 2.0.
(#_memset 0 42 0)
> Error of type TYPE-ERROR: The value 0 is not of the expected type MACPTR.
> While executing: %FF-CALL, in process listener(1).
 (FFFFBAABC880) : 0 (PRINT-CALL-HISTORY :CONTEXT NIL :PROCESS NIL :ORIGIN NIL :DETAILED-P T :COUNT 1152921504606846975 :START-FRAME-NUMBER 0 :STREAM #<SYNONYM-STREAM to *TERMINAL-IO* #x302000A32BFC> :PRINT-LEVEL 2 :PRINT-LENGTH 5 :PRINT-STRING-LENGTH :DEFAULT :SHOW-INTERNAL-FRAMES NIL :FORMAT :TRADITIONAL) 836
  (&KEY :CONTEXT :PROCESS :ORIGIN :DETAILED-P :COUNT :START-FRAME-NUMBER :STREAM :PRINT-LEVEL :PRINT-LENGTH :PRINT-STRING-LENGTH :SHOW-INTERNAL-FRAMES :FORMAT)
   CCL::CONTEXT: NIL
   PROCESS: NIL
   CCL::ORIGIN: NIL
   CCL::DETAILED-P: T
   COUNT: 1152921504606846975
   CCL::START-FRAME-NUMBER: 0
   STREAM: #<SYNONYM-STREAM to *TERMINAL-IO* #x302000A32BFC>
   CCL::PRINT-LEVEL: 2
   CCL::PRINT-LENGTH: 5
   CCL::PRINT-STRING-LENGTH: :DEFAULT
   CCL::SHOW-INTERNAL-FRAMES: NIL
   FORMAT: :TRADITIONAL

  #:COMPILER-VAR: NIL
  #:COMPILER-VAR: NIL
  #:COMPILER-VAR: NIL
  #:COMPILER-VAR: NIL
  #:COMPILER-VAR: NIL
  #:COMPILER-VAR: NIL
  #:COMPILER-VAR: NIL
  #:COMPILER-VAR: NIL
  #:COMPILER-VAR: NIL
  #:COMPILER-VAR: NIL
  #:COMPILER-VAR: NIL
  #:COMPILER-VAR: NIL
  CCL::FRAME-NUMBER: 0
  *BACKTRACE-PRINT-LEVEL*: 2
  *BACKTRACE-PRINT-LENGTH*: 5
  *BACKTRACE-PRINT-STRING-LENGTH*: :DEFAULT
  *BACKTRACE-FORMAT*: :TRADITIONAL
  *STANDARD-OUTPUT*: #<SYNONYM-STREAM to *TERMINAL-IO* #x302000A32BFC>
  *PRINT-CIRCLE*: NIL

 (FFFFBAABC8A0) : 1 (ABNORMAL-APPLICATION-EXIT) 180
  NIL

  #:G52053: (ERROR)
  CCL::%HANDLERS%: ((ERROR) (PROCES> Error of type CCL::INVALID-MEMORY-ACCESS: Fault during read of memory address #x30000000015BF4
> While executing: CCL::CLASS-CELL-TYPEP, in process listener(1).
S-RESET))

 (FFFFBAABADC0) : 0 (PRINT-CALL-HISTORY :CONTEXT NIL :PROCESS NIL :ORIGIN NIL :DETAILED-P T :COUNT 1152921504606846975 :START-FRAME-NUMBER 0 :STREAM #<SYNONYM-STREAM to *TERMINAL-IO* #x302000A32BFC> :PRINT-LEVEL 2 :PRINT-LENGTH 5 :PRINT-STRING-LENGTH :DEFAULT :SHOW-INTERNAL-FRAMES NIL :FORMAT :TRADITIONAL) 836
  (&KEY :CONTEXT :PROCESS :ORIGIN :DETAILED-P :COUNT :START-FRAME-NUMBER :STREAM :PRINT-LEVEL :PRINT-LENGTH :PRINT-STRING-LENGTH :SHOW-INTERNAL-FRAMES :FORMAT)
   CCL::CONTEXT: NIL
   PROCESS: NIL
   CCL::ORIGIN: NIL
   CCL::DETAILED-P: T
   COUNT: 1152921504606846975
   CCL::START-FRAME-NUMBER: 0
   STREAM: #<SYNONYM-STREAM to *TERMINAL-IO* #x302000A32BFC>
   CCL::PRINT-LEVEL: 2
   CCL::PRINT-LENGTH: 5
   CCL::PRINT-STRING-LENGTH: :DEFAULT
   CCL::SHOW-INTERNAL-FRAMES: NIL
   FORMAT: :TRADITIONAL

  #:COMPILER-VAR: NIL
  #:COMPILER-VAR: NIL
  #:COMPILER-VAR: NIL
  #:COMPILER-VAR: NIL
  #:COMPILER-VAR: NIL
  #:COMPILER-VAR: NIL
  #:COMPILER-VAR: NIL
  #:COMPILER-VAR: NIL
  #:COMPILER-VAR: NIL
  #:COMPILER-VAR: NIL
  #:COMPILER-VAR: NIL
  #:COMPILER-VAR: NIL
  CCL::FRAME-NUMBER: 0
  *BACKTRACE-PRINT-LEVEL*: 2
  *BACKTRACE-PRINT-LENGTH*: 5
  *BACKTRACE-PRINT-STRING-LENGTH*: :DEFAULT
  *BACKTRACE-FORMAT*: :TRADITIONAL
  *STANDARD-OUTPUT*: #<SYNONYM-STREAM to *TERMINAL-IO* #x302000A32BFC>
  *PRINT-CIRCLE*: NIL

 (FFFFBAABADE0) : 1 (ABNORMAL-APPLICATION-EXIT) 180
  NIL

  #:G52053: (ERROR)
  CCL::%HANDLERS%: ((ERR> Error of type CCL::INVALID-MEMORY-ACCESS: Fault during read of memory address #x30000000015BF4
> While executing: CCL::CLASS-CELL-TYPEP, in process listener(1).
OR) (ERROR) (PROCESS-RESET))

...

[gmpalter]

Here's a possible clue. In the non-batch case, it had printed "Origin" before getting the memory fault. That appears to come from CCL::%MAP-CALL-FRAMES-INTERNAL

  (unless (eq (last-frame-ptr context origin) (last-frame-ptr context))
    (error "Origin ~s is not in the stack of ~s" origin context))

[gmpalter]

Forgot to mention @cyclistmass so he'd see this issue.

[xrme]

I think I may have a fix for this in the works. Stand by.

[xrme]

I think I got it. #615 gets part of it, but the real problem was a misunderstanding of what kind of objects can live on the control stack.