Strange entries in xbacktrace

Strange entries in xbacktrace

[Eli Zaretskii]

Since today (or maybe yesterday), I sometimes see strange entries in
the Lisp backtrace.  Like this, for example:

  Lisp Backtrace:
  0xb6110000 Lisp type 0

Is this expected?  If so, how to interpret these?

Re: Strange entries in xbacktrace

[Eli Zaretskii]

> Date: Sat, 29 Sep 2012 18:42:49 +0200
> From: Eli Zaretskii <eliz@gnu.org>
> 
> Since today (or maybe yesterday), I sometimes see strange entries in
> the Lisp backtrace.  Like this, for example:
> 
>   Lisp Backtrace:
>   0xb6110000 Lisp type 0
> 
> Is this expected?  If so, how to interpret these?

Sounds like a bug, because I now get

  Lisp Backtrace:
  0x90310000 Lisp type 0
  0xb2890000 Lisp type 0
  0xaf790000 Lisp type 0
  0x17190000 Lisp type 0
  0x6dd10000 Lisp type 0
  0x6f110000 Lisp type 0
  0x15890360 Lisp type 4
  0x81910000 Lisp type 0

where I should have seen a real Lisp backtrace, judging by the C
backtrace:

  #5  0x0111bde9 in Fvertical_motion (lines=4, window=55121741) at indent.c:2063
  #6  0x01015107 in Ffuncall (nargs=2, args=0x82ec04) at eval.c:2775
  #7  0x0112585f in exec_byte_code (bytestr=20756017, vector=20756157,
      maxdepth=20, args_template=55060506, nargs=0, args=0x0) at bytecode.c:899
  #8  0x01015fc9 in funcall_lambda (fun=20755981, nargs=2, arg_vector=0x82ee68)
      at eval.c:3004
  #9  0x010154a3 in Ffuncall (nargs=3, args=0x82ee64) at eval.c:2821
  #10 0x0112585f in exec_byte_code (bytestr=20755745, vector=20755853,
      maxdepth=16, args_template=55060506, nargs=0, args=0x0) at bytecode.c:899
  #11 0x01015fc9 in funcall_lambda (fun=20755693, nargs=4, arg_vector=0x82f0c8)
      at eval.c:3004
  #12 0x010154a3 in Ffuncall (nargs=5, args=0x82f0c4) at eval.c:2821
  #13 0x0112585f in exec_byte_code (bytestr=20754401, vector=20754493,
      maxdepth=24, args_template=55060506, nargs=0, args=0x0) at bytecode.c:899
  #14 0x01015fc9 in funcall_lambda (fun=20754349, nargs=0, arg_vector=0x82f290)
      at eval.c:3004
  #15 0x010157db in apply_lambda (fun=20754349, args=55060506) at eval.c:2881
  #16 0x010137b2 in eval_sub (form=59011630) at eval.c:2182
  #17 0x0100f137 in Fprogn (args=59011622) at eval.c:359
  #18 0x01012f24 in eval_sub (form=59011806) at eval.c:2085
  #19 0x01012a86 in Feval (form=59011806, lexical=55060506) at eval.c:2002
  #20 0x01015107 in Ffuncall (nargs=3, args=0x82f644) at eval.c:2775
  #21 0x0112585f in exec_byte_code (bytestr=20723729, vector=20723845,
      maxdepth=20, args_template=55060506, nargs=0, args=0x0) at bytecode.c:899
  #22 0x01015fc9 in funcall_lambda (fun=20723677, nargs=2, arg_vector=0x82f8a4)
      at eval.c:3004
  #23 0x010154a3 in Ffuncall (nargs=3, args=0x82f8a0) at eval.c:2821
  #24 0x01014296 in Fapply (nargs=2, args=0x82f940) at eval.c:2306
  #25 0x0101481a in apply1 (fn=56823810, arg=59011246) at eval.c:2540
  #26 0x01122a9e in Fcall_interactively (function=56823810,
      record_flag=55060506, keys=55081901) at callint.c:377
  #27 0x0101517c in Ffuncall (nargs=4, args=0x82fb80) at eval.c:2779

Re: Strange entries in xbacktrace

[Stefan Monnier]

> Sounds like a bug, because I now get

>   Lisp Backtrace:
>   0x90310000 Lisp type 0
>   0xb2890000 Lisp type 0
>   0xaf790000 Lisp type 0
>   0x17190000 Lisp type 0
>   0x6dd10000 Lisp type 0
>   0x6f110000 Lisp type 0
>   0x15890360 Lisp type 4
>   0x81910000 Lisp type 0

Oh, yes, I forgot to update .gdbinit to match my change to struct
backtrace, should be fixed now, sorry,


        Stefan