Subject: Re: bug#75459: 31.0.50; scratch-igc: Breakpoint 1, terminate_due_to_signal (sig=sig@entry=6, backtrace_limit=backtrace_limit@entry=2147483647) at ./src/emacs.c:432

From: Gregor Zattler <[email-masked]>
Date: Thu, 09 Jan 2025 16:32:04 +0100

Hi Pip,
* Pip Cet <[email-masked]> [2025-01-09; 14:47 GMT]:
> Gregor, can you run "print specpdl_ptr",
> "print *(struct Lisp_String *)0x555557040d50", and "bt full"?

(gdb) print specpdl_ptr
$4 = (union specbinding *) 0x5555567c1a50

(gdb) print *(struct Lisp_String *)0x555557040d50
$5 = {
  gc_header = {
    v = 144120702814523145,
    gcaligned = 9 '\t'
  },
  u = {
    s = {
      size = 74027876143398912,
      size_byte = 8028901113149262606,
      intervals = 0xd0e000d0d646573,
      data = 0x6c64616564080200 <error: Cannot access memory at address 0x6c64616564080200>
    },
    next = 0x106fff60d010000,
    gcaligned = 0 '\000'
  }
}

(gdb) bt full
#0  terminate_due_to_signal (sig=sig@entry=6, backtrace_limit=backtrace_limit@entry=2147483647) at ./src/emacs.c:432
#1  0x00005555555b72db in die (msg=msg@entry=0x5555559d49e0 "pdl->kind == SPECPDL_BACKTRACE", file=file@entry=0x5555559d4540 "eval.c", line=line@entry=118) at ./src/alloc.c:8377
#2  0x00005555555bcc21 in backtrace_function (pdl=<optimized out>) at ./src/eval.c:118
#3  0x00007fffffff986f in <function called from gdb> ()
#4  terminate_due_to_signal (sig=sig@entry=6, backtrace_limit=backtrace_limit@entry=2147483647) at ./src/emacs.c:432
#5  0x00005555555b72db in die (msg=msg@entry=0x5555559d49e0 "pdl->kind == SPECPDL_BACKTRACE", file=file@entry=0x5555559d4540 "eval.c", line=line@entry=118) at ./src/alloc.c:8377
#6  0x00005555555bcc21 in backtrace_function (pdl=<optimized out>) at ./src/eval.c:118
#7  0x00007fffffff992f in <function called from gdb> ()
#8  terminate_due_to_signal (sig=sig@entry=6, backtrace_limit=backtrace_limit@entry=2147483647) at ./src/emacs.c:432
#9  0x00005555555b72db in die (msg=msg@entry=0x5555559d49e0 "pdl->kind == SPECPDL_BACKTRACE", file=file@entry=0x5555559d4540 "eval.c", line=line@entry=118) at ./src/alloc.c:8377
#10 0x00005555555bcc21 in backtrace_function (pdl=<optimized out>) at ./src/eval.c:118
#11 0x00007fffffff99ef in <function called from gdb> ()
#12 terminate_due_to_signal (sig=sig@entry=6, backtrace_limit=backtrace_limit@entry=2147483647) at ./src/emacs.c:432
#13 0x00005555555b72db in die (msg=msg@entry=0x5555559d49e0 "pdl->kind == SPECPDL_BACKTRACE", file=file@entry=0x5555559d4540 "eval.c", line=line@entry=118) at ./src/alloc.c:8377
#14 0x00005555555bcc21 in backtrace_function (pdl=<optimized out>) at ./src/eval.c:118
#15 0x00007fffffff9aaf in <function called from gdb> ()
#16 terminate_due_to_signal (sig=sig@entry=6, backtrace_limit=backtrace_limit@entry=2147483647) at ./src/emacs.c:432
#17 0x00005555555b72db in die (msg=msg@entry=0x5555559d49e0 "pdl->kind == SPECPDL_BACKTRACE", file=file@entry=0x5555559d4540 "eval.c", line=line@entry=118) at ./src/alloc.c:8377
#18 0x00005555555bcc21 in backtrace_function (pdl=<optimized out>) at ./src/eval.c:118
#19 0x00007fffffff9b6f in <function called from gdb> ()
#20 terminate_due_to_signal (sig=sig@entry=6, backtrace_limit=backtrace_limit@entry=2147483647) at ./src/emacs.c:432
#21 0x00005555555b72db in die (msg=msg@entry=0x5555559cedde "CHAR_TABLE_P (obj)", file=file@entry=0x5555559b0565 "character.h", line=line@entry=597) at ./src/alloc.c:8377
#22 0x00005555555b6acd in char_table_translate (obj=Python Exception <class 'gdb.error'>: value has been optimized out
, ch=32) at ./src/character.h:597
#23 0x00005555557d99a0 in re_match_2_internal (bufp=0x5555560fd6a0 <searchbufs+2912>, bufp@entry=0x5eb92b3c6c43c900, string1=0x0, string1@entry=0x555557025101 "\377\377\377\377\377\377\377\001", size1=0, string2=0x5555570251b0 "#-*- mode: Org; indent-tabs-mode: nil; coding: utf-8-unix  -*-\n#+STARTUP: hidestars\n#+STARTUP: odd\n;#+STARTUP: overview\n#+STARTUP: showeverything\n#+SEQ_TODO: TODO(t) INPROGRESS(i@/@) WAITING(w@/@) VER"..., size2=93674, size2@entry=93825020464468, pos=43986, regs=<optimized out>, stop=<optimized out>) at ./src/regex-emacs.c:4553
        len = 1
        corig = 32
        c = 32
        mcnt = <optimized out>
        end1 = 0x0
        end2 = 0x55555703bf9a ""
        end_match_1 = 0x0
        end_match_2 = 0x55555703bf9a ""
        d = 0x55555702fd82 "    :PROPERTIES:\n    :ID: fd470568-f0eb-48a4-bf04-dada8e83de5f\n    :END:\n\n    - Mittwoch Goldene Zitronen\n    - Treffen  <2024-12-02 Mo 18:00> in Neukölln, Stuttgarter Str. 10 /\n      Roseggerstr. 39"...
        dend = 0x55555703bf9a ""
        dfail = <optimized out>
        p = 0x555557040d55 "\005"
        pend = 0x555557040d8f " \377\003\376\377\377\207\376\377\377\a\001"
        translate = XIL(0x7fffe0b702f5)
        multibyte = false
        target_multibyte = true
        fail_stack = {
          stack = <optimized out>,
          size = <optimized out>,
          avail = 3,
          frame = 3
        }
        num_regs = 2
        regstart = <optimized out>
        regend = 0x7fffffff9c40
        best_regs_set = false
        best_regstart = 0x7fffffff9c48
        best_regend = 0x7fffffff9c50
        match_end = 0x0
        nchars = 0
        retval = -1
        sa_avail = 6398840
        sa_count = {
          bytes = 1440
        }
        re_nsub = <optimized out>
#24 0x00005555557de57d in re_match_2 (bufp=0x5eb92b3c6c43c900, string1=0x555557025101 "\377\377\377\377\377\377\377\001", size1=<optimized out>, string2=<optimized out>, size2=93825020464468, pos=<optimized out>, regs=<optimized out>, stop=<optimized out>) at ./src/regex-emacs.c:4056
#25 0x00005555557c9f73 in looking_at_1 (string=Python Exception <class 'gdb.error'>: value has been optimized out
, posix=<optimized out>, modify_data=<optimized out>) at ./src/search.c:323
        val = Python Exception <class 'gdb.error'>: value has been optimized out

        p1 = 0x5555570251b0 "#-*- mode: Org; indent-tabs-mode: nil; coding: utf-8-unix  -*-\n#+STARTUP: hidestars\n#+STARTUP: odd\n;#+STARTUP: overview\n#+STARTUP: showeverything\n#+SEQ_TODO: TODO(t) INPROGRESS(i@/@) WAITING(w@/@) VER"...
        p2 = <optimized out>
        s1 = <optimized out>
        s2 = <optimized out>
        i = <optimized out>
        modify_match_data = <optimized out>
        cache_entry = 0x5555560fd680 <searchbufs+2880>
#26 0x00007fffde1bc131 in F616e6f6e796d6f75732d6c616d626461_anonymous_lambda_38 () at /home/grfz/.config/emacs/eln-cache/31.0.50-b708ad23/org-element-1d23d6e0-0b03f1c0.eln
#27 0x000055555581b7c7 in funcall_subr (subr=0x7fffe63117f0, numargs=4, args=<optimized out>) at ./src/eval.c:3173
        argbuf = {XIL(0x7fffe5607a2b), XIL(0), XIL(0x7fffffffb170), XIL(0x55555581153c), XIL(0x520), XIL(0), XIL(0), XIL(0x55555581cf4d)}
        a = <optimized out>
        maxargs = 4
#28 0x0000555555817e73 in Ffuncall (nargs=5, args=0x7fffffffb268) at ./src/eval.c:3099
        val = Python Exception <class 'gdb.error'>: value has been optimized out

#29 0x00007fffde1eea0e in F6f72672d656c656d656e742d2d70617273652d746f_org_element__parse_to_0 () at /home/grfz/.config/emacs/eln-cache/31.0.50-b708ad23/org-element-1d23d6e0-0b03f1c0.eln
#30 0x000055555581b7e3 in funcall_subr (subr=0x7fffe6413978, numargs=1, args=<optimized out>) at ./src/eval.c:3171
        argbuf = {make_fixnum(44173), XIL(0), XIL(0), XIL(0x7fffe2e46fc8), XIL(0x7fffe2e46fcb), XIL(0x55555611d1c0), XIL(0x7fffde263ea8), XIL(0x55555581cf4d)}
        a = <optimized out>
        maxargs = 3
#31 0x0000555555817e73 in Ffuncall (nargs=2, args=0x7fffffffb480) at ./src/eval.c:3099
        val = Python Exception <class 'gdb.error'>: value has been optimized out

#32 0x00007fffde1fe45e in F6f72672d656c656d656e742d2d63616368652d7665726966792d656c656d656e74_org_element__cache_verify_element_0 () at /home/grfz/.config/emacs/eln-cache/31.0.50-b708ad23/org-element-1d23d6e0-0b03f1c0.eln
#33 0x000055555581b810 in funcall_subr (subr=0x7fffe95e36d8, numargs=1, args=<optimized out>) at ./src/eval.c:3167
        argbuf = {XIL(0), XIL(0), XIL(0), XIL(0), XIL(0), XIL(0x7ffff29fcd40), XIL(0x55555611d1c0), XIL(0x55555581cf4d)}
        a = <optimized out>
        maxargs = 1
#34 0x0000555555817e73 in Ffuncall (nargs=2, args=0x7fffffffbbd0) at ./src/eval.c:3099
        val = Python Exception <class 'gdb.error'>: value has been optimized out

#35 0x00007fffde218a4e in F6f72672d656c656d656e742d61742d706f696e74_org_element_at_point_0 () at /home/grfz/.config/emacs/eln-cache/31.0.50-b708ad23/org-element-1d23d6e0-0b03f1c0.eln
#36 0x000055555581b7ff in funcall_subr (subr=0x7fffe6414738, numargs=0, args=<optimized out>) at ./src/eval.c:3169
        argbuf = {XIL(0), XIL(0), XIL(0x7fffe8c1e6b8), XIL(0x7fffe5606b85), XIL(0x7fffe8c1e6bd), XIL(0x4), XIL(0x7fffffffbcc0), XIL(0x55555581cf4d)}
        a = <optimized out>
        maxargs = 2
#37 0x0000555555817e73 in Ffuncall (nargs=1, args=0x7fffffffbd58) at ./src/eval.c:3099
        val = Python Exception <class 'gdb.error'>: value has been optimized out

#38 0x00007fffdf123c64 in F6f72672d696e2d7372632d626c6f636b2d70_org_in_src_block_p_0 () at /home/grfz/.config/emacs/eln-cache/31.0.50-b708ad23/org-30013b5a-16ff07f1.eln
#39 0x000055555581b7ff in funcall_subr (subr=0x7fffe9cec0b0, numargs=2, args=<optimized out>) at ./src/eval.c:3169
        argbuf = {XIL(0x360), XIL(0), XIL(0), XIL(0x5555559d4f50), XIL(0x7fffffffbec0), make_fixnum(23456248887582), XIL(0x7fffffffbed0), XIL(0x55555581cf4d)}
        a = <optimized out>
        maxargs = 2
#40 0x0000555555817e73 in Ffuncall (nargs=3, args=0x7fffffffbf80) at ./src/eval.c:3099
        val = Python Exception <class 'gdb.error'>: value has been optimized out

#41 0x00007fffde296717 in F6f72672d6167656e64612d736b6970_org_agenda_skip_0 () at /home/grfz/.config/emacs/eln-cache/31.0.50-b708ad23/org-agenda-c62ea9fb-0f9a50be.eln
#42 0x000055555581b810 in funcall_subr (subr=0x7fffe9d601e0, numargs=0, args=<optimized out>) at ./src/eval.c:3167
        argbuf = {XIL(0), XIL(0), XIL(0x38), XIL(0), XIL(0x7fffffffc110), XIL(0x5555557f9350), XIL(0), XIL(0x55555581cf4d)}
        a = <optimized out>
        maxargs = 1
#43 0x0000555555817e73 in Ffuncall (nargs=1, args=0x7fffffffc208) at ./src/eval.c:3099
        val = Python Exception <class 'gdb.error'>: value has been optimized out

#44 0x00007fffde2bb076 in F6f72672d6167656e64612d6765742d626c6f636b73_org_agenda_get_blocks_0 () at /home/grfz/.config/emacs/eln-cache/31.0.50-b708ad23/org-agenda-c62ea9fb-0f9a50be.eln
#45 0x0000555555817e73 in Ffuncall (nargs=1, args=0x7fffffffc3c0) at ./src/eval.c:3099
        val = Python Exception <class 'gdb.error'>: value has been optimized out

#46 0x00007fffde2a52cc in F6f72672d6167656e64612d6765742d6461792d656e7472696573_org_agenda_get_day_entries_0 () at /home/grfz/.config/emacs/eln-cache/31.0.50-b708ad23/org-agenda-c62ea9fb-0f9a50be.eln
#47 0x0000555555817e73 in Ffuncall (nargs=nargs@entry=7, args=0x7fffffffc530) at ./src/eval.c:3099
        val = Python Exception <class 'gdb.error'>: value has been optimized out

#48 0x0000555555818220 in Fapply (nargs=<optimized out>, args=0x7fffffffc6f8) at ./src/eval.c:2771
        i = <optimized out>
        funcall_nargs = 7
        funcall_args = <optimized out>
        spread_arg = XIL(0)
        fun = Python Exception <class 'gdb.error'>: value has been optimized out

        sa_avail = <optimized out>
        sa_count = {
          bytes = 512
        }
        numargs = <optimized out>
        retval = Python Exception <class 'gdb.error'>: value has been optimized out

#49 0x0000555555817e73 in Ffuncall (nargs=5, args=0x7fffffffc6f0) at ./src/eval.c:3099
        val = Python Exception <class 'gdb.error'>: value has been optimized out

#50 0x00007fffde29911e in F6f72672d6167656e64612d6c697374_org_agenda_list_0 () at /home/grfz/.config/emacs/eln-cache/31.0.50-b708ad23/org-agenda-c62ea9fb-0f9a50be.eln
#51 0x000055555581c583 in eval_sub (form=Python Exception <class 'gdb.error'>: value has been optimized out
) at ./src/eval.c:2614
        i = 4
        maxargs = 4
        args_left = XIL(0)
        numargs = 2
        original_fun = Python Exception <class 'gdb.error'>: value has been optimized out

        original_args = XIL(0x7fffe4e097b3)
        fun = XIL(0x7fffe6470da5)
        val = Python Exception <class 'gdb.error'>: value has been optimized out

        funcar = Python Exception <class 'gdb.error'>: value has been optimized out

        argvals = {make_fixnum(0), XIL(0x7fffe4e097cc), XIL(0), XIL(0), XIL(0x555556150320), XIL(0x7fffffffc8a0), XIL(0x80), make_fixnum(23456249081022)}
#52 0x000055555581c6d9 in Fprogn (body=XIL(0x7fffe4e2036b)) at ./src/eval.c:443
        val = XIL(0)
#53 0x000055555581cadd in funcall_lambda (fun=make_fixnum(1), nargs=<optimized out>, arg_vector=<optimized out>) at ./src/eval.c:3356
        syms_left = Python Exception <class 'gdb.error'>: value has been optimized out

        lexenv = Python Exception <class 'gdb.error'>: value has been optimized out

        i = <optimized out>
        optional = <optimized out>
        rest = <optimized out>
        previous_rest = <optimized out>
#54 0x0000555555817e73 in Ffuncall (nargs=nargs@entry=1, args=args@entry=0x7fffffffcab8) at ./src/eval.c:3099
        val = Python Exception <class 'gdb.error'>: value has been optimized out

#55 0x00005555558127d7 in Ffuncall_interactively (nargs=1, args=0x7fffffffcab8) at ./src/callint.c:250
#56 0x0000555555817e73 in Ffuncall (nargs=nargs@entry=2, args=args@entry=0x7fffffffcab0) at ./src/eval.c:3099
        val = Python Exception <class 'gdb.error'>: value has been optimized out

#57 0x0000555555818478 in Fapply (nargs=nargs@entry=3, args=args@entry=0x7fffffffcab0) at ./src/eval.c:2724
        i = <optimized out>
        funcall_nargs = <optimized out>
        funcall_args = 0x0
        spread_arg = XIL(0)
        fun = XIL(0xae58)
        sa_avail = 16384
        sa_count = {
          bytes = 192
        }
        numargs = <optimized out>
        retval = Python Exception <class 'gdb.error'>: value has been optimized out

#58 0x000055555581428c in Fcall_interactively (function=Python Exception <class 'gdb.error'>: value has been optimized out
, record_flag=XIL(0), keys=XIL(0x7fffe137c8c5)) at ./src/callint.c:342
        funval = Python Exception <class 'gdb.error'>: value has been optimized out

        events = <optimized out>
        speccount = {
          bytes = 160
        }
        arg_from_tty = false
        key_count = 2
        record_then_fail = false
        save_this_command = XIL(0x2aaa8ecfbc50)
        save_this_original_command = XIL(0x2aaa8ecfbc50)
        save_real_this_command = XIL(0x2aaa8ecfbc50)
        save_last_command = XIL(0)
        prefix_arg = XIL(0)
        enable = XIL(0)
        up_event = XIL(0)
        form = Python Exception <class 'gdb.error'>: value has been optimized out

        specs = XIL(0)
        sa_avail = <optimized out>
        sa_count = {
          bytes = <optimized out>
        }
        string_len = <optimized out>
        string = <optimized out>
        string_end = <optimized out>
        next_event = <optimized out>
        nargs = <optimized out>
        args = <optimized out>
        visargs = <optimized out>
        varies = <optimized out>
        tem = <optimized out>
#59 0x00007ffff27ee8f5 in F636f6d6d616e642d65786563757465_command_execute_0 () at /home/grfz/src/emacs-igc/src/../native-lisp/31.0.50-b708ad23/preloaded/simple-fab5b0cf-f25e9023.eln
#60 0x000055555581b7c7 in funcall_subr (subr=0x7fffe139d428, numargs=1, args=<optimized out>) at ./src/eval.c:3173
        argbuf = {XIL(0x2aaa8ecfbc50), XIL(0), XIL(0), XIL(0), XIL(0x7fffffffcc90), XIL(0x555555817e73), XIL(0x7ffff287dce0), XIL(0x55555581cf4d)}
        a = <optimized out>
        maxargs = 4
#61 0x0000555555817e73 in Ffuncall (nargs=nargs@entry=2, args=args@entry=0x7fffffffcd60) at ./src/eval.c:3099
        val = Python Exception <class 'gdb.error'>: value has been optimized out

#62 0x000055555577666c in command_loop_1 () at ./src/keyboard.c:1556
        cmd = Python Exception <class 'gdb.error'>: value has been optimized out

        keybuf = {XIL(0x2aaa8c649708), make_fixnum(106), make_fixnum(106), make_fixnum(97), XIL(0x7fffe1e302e4), XIL(0x7fffe11e2f64), XIL(0x7fffe11e2f64), XIL(0x16c00), XIL(0x38), XIL(0x7fffe0ab759d), XIL(0x7fffe0ab759d), XIL(0x7fffffffceb0), XIL(0), XIL(0), XIL(0), make_fixnum(23456248787193), make_fixnum(0), XIL(0x5555557ff930), XIL(0), XIL(0x5555557ff588), XIL(0), XIL(0x5eb92b3c6c43c900), XIL(0), XIL(0x60), XIL(0x7fffe582e41b), XIL(0), XIL(0x5555559d4f50), XIL(0x7fffe0c6bec5), XIL(0x7fffffffced0), XIL(0x555555817b23)}
        i = <optimized out>
        last_pt = 1
        prev_modiff = 1
        prev_buffer = 0x7fffe0c6bec0
#63 0x0000555555815d26 in internal_condition_case (bfun=bfun@entry=0x5555557760b0 <command_loop_1>, handlers=handlers@entry=XIL(0xa8), hfun=hfun@entry=0x55555575a510 <cmd_error>) at ./src/eval.c:1618
        val = XIL(0x4c)
        c = 0x7fffe1e5de70
#64 0x0000555555758e1e in command_loop_2 (handlers=handlers@entry=XIL(0xa8)) at ./src/keyboard.c:1174
#65 0x0000555555815aaf in internal_catch (tag=tag@entry=XIL(0x15460), func=func@entry=0x555555758df0 <command_loop_2>, arg=Python Exception <class 'gdb.error'>: value has been optimized out
, arg@entry=XIL(0xa8)) at ./src/eval.c:1297
        val = XIL(0x4c)
        c = 0x7fffe1e37138
#66 0x0000555555758db9 in command_loop () at ./src/lisp.h:1240
#67 0x0000555555765535 in recursive_edit_1 () at ./src/keyboard.c:760
        val = Python Exception <class 'gdb.error'>: value has been optimized out

#68 0x00005555557658d5 in Frecursive_edit () at ./src/keyboard.c:843
#69 0x00005555555cffe5 in main (argc=5, argv=<optimized out>) at ./src/emacs.c:2646
        stack_bottom_variable = 0x7ffff3e92c60
        old_argc = <optimized out>
        no_loadup = <optimized out>
        junk = 0x0
        dname_arg = 0x7fffffffd7a8 "EMACS-MPS=yes"
        ch_to_dir = 0x0
        original_pwd = <optimized out>
        dump_mode = <optimized out>
        skip_args = 1
        temacs = 0x0
        attempt_load_pdump = <optimized out>
        only_version = <optimized out>
        rlim = {
          rlim_cur = 10022912,
          rlim_max = 18446744073709551615
        }
        lc_all = <optimized out>
        sockfd = <optimized out>
        module_assertions = <optimized out>

Lisp Backtrace:

eval.c:118: Emacs fatal error: assertion failed: pdl->kind == SPECPDL_BACKTRACE

Breakpoint 1, terminate_due_to_signal (sig=sig@entry=6, backtrace_limit=backtrace_limit@entry=2147483647) at ./src/emacs.c:432
432     {
The program being debugged stopped while in a function called from GDB.
Evaluation of the expression containing the function
(backtrace_function) will be abandoned.
When the function is done executing, GDB will silently stop.

HTH, Gregor