Re: master 45a1653: ; Fix last change to bibtex.el

[Eli Zaretskii]

> From: "Basil L. Contovounesios" <contovob@tcd.ie>
> Cc: Lars Ingebrigtsen <larsi@gnus.org>,  rgm@gnu.org,  emacs-devel@gnu.org
> Date: Tue, 24 Nov 2020 19:26:35 +0000
> 
> Now pushed to emacs-27:
> 
> Fix handling of defcustom :local tag
> dea3d6aa18 2020-11-24 16:50:37 +0000
> https://git.savannah.gnu.org/cgit/emacs.git/commit/?id=dea3d6aa18e54f0d8d75cd219b511bac5b3c87b1

Thanks, but this causes a crash when building Emacs.  The command that
crashes is this:

  EMACSLOADPATH= '../src/bootstrap-emacs.exe' -batch --no-site-file 
--no-site-lisp --eval '(setq load-prefer-newer t)'  \
          -l bytecomp -f byte-compile-refresh-preloaded \
          -f batch-byte-compile ../lisp/custom.el

It prints:

  Reloading stale custom.el
  Loading d:/gnu/git/emacs/branch/lisp/custom.el (source)...
  Reloading stale loaddefs.el
  Loading d:/gnu/git/emacs/branch/lisp/loaddefs.el (source)...

and then segfaults inside GC.  Here's the backtrace from the segfault:

  Thread 1 received signal SIGSEGV, Segmentation fault.
  [Switching to Thread 7556.0x26d4]
  0x0130555f in symbol_marked_p (s=0x81ba9ec2) at alloc.c:3792
  3792        : s->u.s.gcmarkbit;
  (gdb) p s
  $1 = (const struct Lisp_Symbol *) 0x81ba9ec2
  (gdb) p *s
  Cannot access memory at address 0x81ba9ec2
  (gdb) bt
  #0  0x0130555f in symbol_marked_p (s=0x81ba9ec2) at alloc.c:3792
  #1  0x0130ac7f in mark_object (arg=XIL(0x80000002)) at alloc.c:6570
  #2  0x01309f92 in mark_vectorlike (header=0x6975158) at alloc.c:6152
  #3  0x0130ac54 in mark_object (arg=XIL(0xa000000006975158)) at alloc.c:6561
  #4  0x01309f92 in mark_vectorlike (header=0x63d5628) at alloc.c:6152
  #5  0x0130a82a in mark_hash_table (ptr=0x63d5628) at alloc.c:6352
  #6  0x0130abdf in mark_object (arg=XIL(0xa0000000063d5628)) at alloc.c:6530
  #7  0x01309f92 in mark_vectorlike (header=0x5ff5c28) at alloc.c:6152
  #8  0x0130ac54 in mark_object (arg=XIL(0xa000000005ff5bf8)) at alloc.c:6561
  #9  0x01306819 in mark_maybe_pointer (p=0x5ff5bf8) at alloc.c:4604
  #10 0x013069e2 in mark_memory (start=0x823678, end=0x82fea4) at alloc.c:4712
  #11 0x01306a28 in mark_stack (bottom=0x82fea4 "≡\376ג",
      end=0x823678 "\230\066ג") at alloc.c:4924
  #12 0x014d955f in mark_one_thread (thread=0x1940000 <main_thread>)
      at thread.c:630
  #13 0x014d9694 in mark_threads_callback (ignore=0x0) at thread.c:661
  #14 0x01306a55 in flush_stack_call_func (
      func=0x14d9616 <mark_threads_callback>, arg=0x0) at alloc.c:4951
  #15 0x014d96c4 in mark_threads () at thread.c:668
  #16 0x01309429 in garbage_collect () at alloc.c:5941
  #17 0x013091b3 in maybe_garbage_collect () at alloc.c:5847
  #18 0x0136930a in maybe_gc () at lisp.h:5065
  #19 0x013770f4 in Ffuncall (nargs=6, args=0x8238b8) at eval.c:2779
  #20 0x0141790b in exec_byte_code (bytestr=XIL(0x8000000006915cc0),
      vector=XIL(0xa000000006974210), maxdepth=make_fixnum(39),
      args_template=make_fixnum(771), nargs=3, args=0x824530) at bytecode.c:633
  #21 0x01378299 in funcall_lambda (fun=XIL(0xa000000006974470), nargs=3,
      arg_vector=0x824518) at eval.c:2990
  #22 0x01377259 in Ffuncall (nargs=4, args=0x824510) at eval.c:2797
  #23 0x0141790b in exec_byte_code (bytestr=XIL(0x8000000006915ca0),
      vector=XIL(0xa000000006a87ad0), maxdepth=make_fixnum(5),
      args_template=make_fixnum(257), nargs=1, args=0x824a80) at bytecode.c:633
  #24 0x01378299 in funcall_lambda (fun=XIL(0xa000000006a87af0), nargs=1,
      arg_vector=0x824a78) at eval.c:2990
  #25 0x01377259 in Ffuncall (nargs=2, args=0x824a70) at eval.c:2797
  #26 0x0137652b in call1 (fn=XIL(0xa000000006a87af0),
      arg1=XIL(0x8000000006a6c7a0)) at eval.c:2655
  #27 0x01395c3d in mapcar1 (leni=2, vals=0x824b40, fn=XIL(0xa000000006a87af0),
      seq=XIL(0xc000000006ee1d70)) at fns.c:2671
  #28 0x013962bc in Fmapcar (function=XIL(0xa000000006a87af0),
      sequence=XIL(0xc000000006ee1d70)) at fns.c:2727
  #29 0x013777a4 in funcall_subr (subr=0x1949720 <Smapcar>, numargs=2,
      args=0x824dd0) at eval.c:2870
  #30 0x013771ff in Ffuncall (nargs=3, args=0x824dc8) at eval.c:2795
  #31 0x0141790b in exec_byte_code (bytestr=XIL(0x8000000006915c90),
      vector=XIL(0xa0000000069734a8), maxdepth=make_fixnum(13),
      args_template=make_fixnum(1028), nargs=4, args=0x825440) at bytecode.c:633
  #32 0x01378299 in funcall_lambda (fun=XIL(0xa000000006973538), nargs=4,
      arg_vector=0x825420) at eval.c:2990
  #33 0x01377259 in Ffuncall (nargs=5, args=0x825418) at eval.c:2797
  #34 0x0141790b in exec_byte_code (bytestr=XIL(0x80000000069157a0),
      vector=XIL(0xa0000000069732f8), maxdepth=make_fixnum(23),
      args_template=make_fixnum(1284), nargs=5, args=0x825b70) at bytecode.c:633
  #35 0x01378299 in funcall_lambda (fun=XIL(0xa000000006973368), nargs=5,
      arg_vector=0x825b48) at eval.c:2990
  #36 0x01377259 in Ffuncall (nargs=6, args=0x825b40) at eval.c:2797
  #37 0x0141790b in exec_byte_code (bytestr=XIL(0x8000000006915cc0),
      vector=XIL(0xa000000006974210), maxdepth=make_fixnum(39),
      args_template=make_fixnum(771), nargs=3, args=0x826750) at bytecode.c:633
  #38 0x01378299 in funcall_lambda (fun=XIL(0xa000000006974470), nargs=3,
      arg_vector=0x826738) at eval.c:2990
  #39 0x01377259 in Ffuncall (nargs=4, args=0x826730) at eval.c:2797
  #40 0x0141790b in exec_byte_code (bytestr=XIL(0x8000000006915e50),
      vector=XIL(0xa000000006a879b0), maxdepth=make_fixnum(5),
      args_template=make_fixnum(257), nargs=1, args=0x826ca0) at bytecode.c:633
  #41 0x01378299 in funcall_lambda (fun=XIL(0xa000000006a879d0), nargs=1,
      arg_vector=0x826c98) at eval.c:2990
  #42 0x01377259 in Ffuncall (nargs=2, args=0x826c90) at eval.c:2797
  #43 0x0137652b in call1 (fn=XIL(0xa000000006a879d0),
      arg1=XIL(0xc000000006ee1dd0)) at eval.c:2655
  #44 0x01395c3d in mapcar1 (leni=2, vals=0x826d60, fn=XIL(0xa000000006a879d0),
      seq=XIL(0xc000000006ee1df0)) at fns.c:2671
  #45 0x013962bc in Fmapcar (function=XIL(0xa000000006a879d0),
      sequence=XIL(0xc000000006ee1df0)) at fns.c:2727
  #46 0x013777a4 in funcall_subr (subr=0x1949720 <Smapcar>, numargs=2,
      args=0x826fe8) at eval.c:2870
  #47 0x013771ff in Ffuncall (nargs=3, args=0x826fe0) at eval.c:2795
  #48 0x0141790b in exec_byte_code (bytestr=XIL(0x8000000006915e40),
      vector=XIL(0xa0000000069738b8), maxdepth=make_fixnum(13),
      args_template=make_fixnum(1028), nargs=4, args=0x827608) at bytecode.c:633
  #49 0x01378299 in funcall_lambda (fun=XIL(0xa000000006973908), nargs=4,
      arg_vector=0x8275e8) at eval.c:2990
  #50 0x01377259 in Ffuncall (nargs=5, args=0x8275e0) at eval.c:2797
  #51 0x0141790b in exec_byte_code (bytestr=XIL(0x8000000006915cc0),
      vector=XIL(0xa000000006974210), maxdepth=make_fixnum(39),
      args_template=make_fixnum(771), nargs=3, args=0x828230) at bytecode.c:633
  #52 0x01378299 in funcall_lambda (fun=XIL(0xa000000006974470), nargs=3,
      arg_vector=0x828218) at eval.c:2990
  #53 0x01377259 in Ffuncall (nargs=4, args=0x828210) at eval.c:2797
  #54 0x0141790b in exec_byte_code (bytestr=XIL(0x8000000006915e50),
      vector=XIL(0xa000000006a878e0), maxdepth=make_fixnum(5),
      args_template=make_fixnum(257), nargs=1, args=0x828780) at bytecode.c:633
  #55 0x01378299 in funcall_lambda (fun=XIL(0xa000000006a87900), nargs=1,
      arg_vector=0x828778) at eval.c:2990
  #56 0x01377259 in Ffuncall (nargs=2, args=0x828770) at eval.c:2797
  #57 0x0137652b in call1 (fn=XIL(0xa000000006a87900),
      arg1=XIL(0xc000000006ee1e00)) at eval.c:2655
  #58 0x01395c3d in mapcar1 (leni=2, vals=0x828840, fn=XIL(0xa000000006a87900),
      seq=XIL(0xc000000006ee1e80)) at fns.c:2671
  #59 0x013962bc in Fmapcar (function=XIL(0xa000000006a87900),
      sequence=XIL(0xc000000006ee1e80)) at fns.c:2727
  #60 0x013777a4 in funcall_subr (subr=0x1949720 <Smapcar>, numargs=2,
      args=0x828ac8) at eval.c:2870
  #61 0x013771ff in Ffuncall (nargs=3, args=0x828ac0) at eval.c:2795
  #62 0x0141790b in exec_byte_code (bytestr=XIL(0x8000000006915e40),
      vector=XIL(0xa0000000069738b8), maxdepth=make_fixnum(13),
      args_template=make_fixnum(1028), nargs=4, args=0x8290e8) at bytecode.c:633
  #63 0x01378299 in funcall_lambda (fun=XIL(0xa000000006973908), nargs=4,
      arg_vector=0x8290c8) at eval.c:2990
  #64 0x01377259 in Ffuncall (nargs=5, args=0x8290c0) at eval.c:2797
  #65 0x0141790b in exec_byte_code (bytestr=XIL(0x8000000006915cc0),
      vector=XIL(0xa000000006974210), maxdepth=make_fixnum(39),
      args_template=make_fixnum(771), nargs=3, args=0x829d10) at bytecode.c:633
  #66 0x01378299 in funcall_lambda (fun=XIL(0xa000000006974470), nargs=3,
      arg_vector=0x829cf8) at eval.c:2990
  #67 0x01377259 in Ffuncall (nargs=4, args=0x829cf0) at eval.c:2797
  #68 0x0141790b in exec_byte_code (bytestr=XIL(0x8000000006915660),
      vector=XIL(0xa000000006973070), maxdepth=make_fixnum(5),
      args_template=make_fixnum(257), nargs=1, args=0x82a288) at bytecode.c:633
  #69 0x01378299 in funcall_lambda (fun=XIL(0xa0000000069730f8), nargs=1,
      arg_vector=0x82a280) at eval.c:2990
  #70 0x01377259 in Ffuncall (nargs=2, args=0x82a278) at eval.c:2797
  #71 0x0141790b in exec_byte_code (bytestr=XIL(0x8000000006a5bfa0),
      vector=XIL(0xa000000006979ae8), maxdepth=make_fixnum(5),
      args_template=make_fixnum(513), nargs=2, args=0x82a810) at bytecode.c:633
  #72 0x01378299 in funcall_lambda (fun=XIL(0xa000000006979b28), nargs=2,
      arg_vector=0x82a800) at eval.c:2990
  #73 0x01377259 in Ffuncall (nargs=3, args=0x82a7f8) at eval.c:2797
  #74 0x0141790b in exec_byte_code (bytestr=XIL(0x8000000006a5bfc0),
      vector=XIL(0xa000000006979b58), maxdepth=make_fixnum(5),
      args_template=make_fixnum(257), nargs=1, args=0x82ad78) at bytecode.c:633
  #75 0x01378299 in funcall_lambda (fun=XIL(0xa000000006979b88), nargs=1,
      arg_vector=0x82ad70) at eval.c:2990
  #76 0x01377259 in Ffuncall (nargs=2, args=0x82ad68) at eval.c:2797
  #77 0x0141790b in exec_byte_code (bytestr=XIL(0x80000000069170d8),
      vector=XIL(0xa000000006975a48), maxdepth=make_fixnum(10),
      args_template=make_fixnum(514), nargs=2, args=0x82b328) at bytecode.c:633
  #78 0x01378299 in funcall_lambda (fun=XIL(0xa000000006975ab8), nargs=2,
      arg_vector=0x82b318) at eval.c:2990
  #79 0x01377259 in Ffuncall (nargs=3, args=0x82b310) at eval.c:2797
  #80 0x0141790b in exec_byte_code (bytestr=XIL(0x8000000006a5bfb0),
      vector=XIL(0xa000000006979bb8), maxdepth=make_fixnum(4),
      args_template=make_fixnum(257), nargs=1, args=0x82b890) at bytecode.c:633
  #81 0x01378299 in funcall_lambda (fun=XIL(0xa000000006979bd8), nargs=1,
      arg_vector=0x82b888) at eval.c:2990
  #82 0x01377259 in Ffuncall (nargs=2, args=0x82b880) at eval.c:2797
  #83 0x0141790b in exec_byte_code (bytestr=XIL(0x8000000006a5bb88),
      vector=XIL(0xa000000006979168), maxdepth=make_fixnum(7),
      args_template=make_fixnum(257), nargs=1, args=0x82be60) at bytecode.c:633
  #84 0x01378299 in funcall_lambda (fun=XIL(0xa000000006979218), nargs=1,
      arg_vector=0x82be58) at eval.c:2990
  #85 0x01377259 in Ffuncall (nargs=2, args=0x82be50) at eval.c:2797
  #86 0x0141790b in exec_byte_code (bytestr=XIL(0x8000000006a5bb58),
      vector=XIL(0xa000000006979248), maxdepth=make_fixnum(17),
      args_template=make_fixnum(257), nargs=1, args=0x82c548) at bytecode.c:633
  #87 0x01378299 in funcall_lambda (fun=XIL(0xa000000006979418), nargs=1,
      arg_vector=0x82c540) at eval.c:2990
  #88 0x01377259 in Ffuncall (nargs=2, args=0x82c538) at eval.c:2797
  #89 0x0141790b in exec_byte_code (bytestr=XIL(0x8000000006a5b9a8),
      vector=XIL(0xa000000006978c20), maxdepth=make_fixnum(18),
      args_template=make_fixnum(513), nargs=1, args=0x82ccd0) at bytecode.c:633
  #90 0x01378299 in funcall_lambda (fun=XIL(0xa000000006978f60), nargs=1,
      arg_vector=0x82ccc8) at eval.c:2990
  #91 0x01377259 in Ffuncall (nargs=2, args=0x82ccc0) at eval.c:2797
  #92 0x0141790b in exec_byte_code (bytestr=XIL(0x8000000006a5fd40),
      vector=XIL(0xa000000006a73540), maxdepth=make_fixnum(8),
      args_template=make_fixnum(257), nargs=1, args=0x82d2b8) at bytecode.c:633
  #93 0x01378299 in funcall_lambda (fun=XIL(0xa000000006a735c0), nargs=1,
      arg_vector=0x82d2b0) at eval.c:2990
  #94 0x01377259 in Ffuncall (nargs=2, args=0x82d2a8) at eval.c:2797
  #95 0x0141790b in exec_byte_code (bytestr=XIL(0x8000000006a5f8f0),
      vector=XIL(0xa000000006a71b80), maxdepth=make_fixnum(10),
      args_template=make_fixnum(256), nargs=0, args=0x82d938) at bytecode.c:633
  #96 0x01378299 in funcall_lambda (fun=XIL(0xa000000006a72c08), nargs=0,
      arg_vector=0x82d938) at eval.c:2990
  #97 0x01377259 in Ffuncall (nargs=1, args=0x82d930) at eval.c:2797
  #98 0x0141790b in exec_byte_code (bytestr=XIL(0x8000000006277c30),
      vector=XIL(0xa000000006276b48), maxdepth=make_fixnum(25),
      args_template=make_fixnum(257), nargs=1, args=0x82e358) at bytecode.c:633
  #99 0x01378299 in funcall_lambda (fun=XIL(0xa000000006276b18), nargs=1,
      arg_vector=0x82e350) at eval.c:2990
  #100 0x01377259 in Ffuncall (nargs=2, args=0x82e348) at eval.c:2797
  #101 0x0141790b in exec_byte_code (bytestr=XIL(0x800000000627b4c0),
      vector=XIL(0xa000000006277ea0), maxdepth=make_fixnum(14),
      args_template=make_fixnum(0), nargs=0, args=0x82ef78) at bytecode.c:633
  #102 0x01378299 in funcall_lambda (fun=XIL(0xa000000006277e70), nargs=0,
      arg_vector=0x82ef78) at eval.c:2990
  #103 0x01377259 in Ffuncall (nargs=1, args=0x82ef70) at eval.c:2797
  #104 0x0141790b in exec_byte_code (bytestr=XIL(0x800000000627bed0),
      vector=XIL(0xa00000000627b660), maxdepth=make_fixnum(12),
      args_template=make_fixnum(0), nargs=0, args=0x82f650) at bytecode.c:633
  #105 0x01378299 in funcall_lambda (fun=XIL(0xa00000000627b630), nargs=0,
      arg_vector=0x82f650) at eval.c:2990
  #106 0x01377df1 in apply_lambda (fun=XIL(0xa00000000627b630), args=XIL(0),
      count=4) at eval.c:2927
  #107 0x013752e9 in eval_sub (form=XIL(0xc0000000063c47a8)) at eval.c:2319
  #108 0x013741c9 in Feval (form=XIL(0xc0000000063c47a8), lexical=XIL(0))
      at eval.c:2103
  #109 0x011d9d25 in top_level_2 () at keyboard.c:1100
  #110 0x013717f9 in internal_condition_case (bfun=0x11d9cf2 <top_level_2>,
      handlers=XIL(0x90), hfun=0x11d94a3 <cmd_error>) at eval.c:1356
  #111 0x011d9d9f in top_level_1 (ignore=XIL(0)) at keyboard.c:1108
  #112 0x01370a06 in internal_catch (tag=XIL(0xdfb0),
      func=0x11d9d2b <top_level_1>, arg=XIL(0)) at eval.c:1117
  #113 0x011d9bf7 in command_loop () at keyboard.c:1069
  #114 0x011d8f33 in recursive_edit_1 () at keyboard.c:714
  #115 0x011d91a1 in Frecursive_edit () at keyboard.c:786
  #116 0x011cded9 in main (argc=13, argv=0xa44460) at emacs.c:2066

  Lisp Backtrace:
  "Automatic GC" (0x0)
  "make-byte-code" (0x8238c0)
  "cconv-convert" (0x824518)
  0x6a87af0 PVEC_COMPILED
  "mapcar" (0x824dd0)
  "cconv--convert-funcbody" (0x825420)
  "cconv--convert-function" (0x825b48)
  "cconv-convert" (0x826738)
  0x6a879d0 PVEC_COMPILED
  "mapcar" (0x826fe8)
  0x6973908 PVEC_COMPILED
  "cconv-convert" (0x828218)
  0x6a87900 PVEC_COMPILED
  "mapcar" (0x828ac8)
  0x6973908 PVEC_COMPILED
  "cconv-convert" (0x829cf8)
  "cconv-closure-convert" (0x82a280)
  "byte-compile-preprocess" (0x82a800)
  0x6979b88 PVEC_COMPILED
  "byte-compile-recurse-toplevel" (0x82b318)
  "byte-compile-toplevel-file-form" (0x82b888)
  0x6979218 PVEC_COMPILED
  "byte-compile-from-buffer" (0x82c540)
  "byte-compile-file" (0x82ccc8)
  "batch-byte-compile-file" (0x82d2b0)
  "batch-byte-compile" (0x82d938)
  "command-line-1" (0x82e350)
  "command-line" (0x82ef78)
  "normal-top-level" (0x82f650)
  (gdb)

Let me know if I can help you debug this.