bug#36758: 27.0.50; Mac OS/Lucid/X11: crash with libharfbuzz

[Simon Leinen]

I regularly build Emacs from Git master on my work system, an Apple
laptop running Mac OS 10.14.5 "Mojave".  My current binaries have been
built from commit fd5410217ff23810edc16e97c10934ad622f8e4b.

As I want to use open standards as far as possible, I've always been
building with X11 libraries (--with-x --with-x-toolkit=lucid
--with-ns=no).

Lately I have experienced several crashes, mostly while using GNUS
(which fontifies articles in interesting ways).  From running under the
debugger, it seems they are related to libharfbuzz in some way.
Unfortunately I have no easy way to reproduce this from emacs -Q.


I haven't yet been able to work around Mac OS's security restrictions
enough to run Emacs under GDB.  But I've been running it under Apple's
"lldb" debugger and was able to create a backtrace:

Last login: Sat Jul 20 13:23:56 on ttys044
## No news is good news.
: leinen@macsl[leinen]; lldb
: 1leinen@macsl[leinen]; cd
: 1leinen@macsl[leinen]; lldb /var/tmp/emacs/gbuild/src/emacs
(lldb) target create "/var/tmp/emacs/gbuild/src/emacs"
Traceback (most recent call last):
  File "<input>", line 1, in <module>
  File 
"/usr/local/Cellar/python@2/2.7.16/Frameworks/Python.framework/Versions/2.7/lib/python2.7/copy.py",
 line 52, in <module>
    import weakref
  File 
"/usr/local/Cellar/python@2/2.7.16/Frameworks/Python.framework/Versions/2.7/lib/python2.7/weakref.py",
 line 14, in <module>
    from _weakref import (
ImportError: cannot import name _remove_dead_weakref
Current executable set to '/var/tmp/emacs/gbuild/src/emacs' (x86_64).
(lldb) r
Process 9545 launched: '/var/tmp/emacs/gbuild/src/emacs' (x86_64)
2019-07-21 11:07:57.544779+0200 emacs[25606:421986] nw_path_close_fd Failed to 
close guarded necp fd 8 [9: Bad file descriptor]
2019-07-21 11:18:42.815391+0200 emacs[25752:425967] nw_path_close_fd Failed to 
close guarded necp fd 8 [9: Bad file descriptor]
2019-07-21 11:22:16.379676+0200 emacs[25802:427348] nw_path_close_fd Failed to 
close guarded necp fd 8 [9: Bad file descriptor]
2019-07-21 11:27:09.345678+0200 emacs[25863:429541] nw_path_close_fd Failed to 
close guarded necp fd 8 [9: Bad file descriptor]
2019-07-21 11:27:24.670984+0200 emacs[25865:429681] nw_path_close_fd Failed to 
close guarded necp fd 8 [9: Bad file descriptor]
2019-07-21 11:37:24.323339+0200 emacs[26051:433355] nw_path_close_fd Failed to 
close guarded necp fd 8 [9: Bad file descriptor]
2019-07-21 11:44:54.299349+0200 emacs[26136:436109] nw_path_close_fd Failed to 
close guarded necp fd 8 [9: Bad file descriptor]
2019-07-21 11:45:16.788719+0200 emacs[26151:436419] nw_path_close_fd Failed to 
close guarded necp fd 8 [9: Bad file descriptor]
2019-07-21 11:47:17.212474+0200 emacs[26176:437212] nw_path_close_fd Failed to 
close guarded necp fd 8 [9: Bad file descriptor]
2019-07-21 11:47:34.105429+0200 emacs[26181:437444] nw_path_close_fd Failed to 
close guarded necp fd 8 [9: Bad file descriptor]
2019-07-21 12:22:46.221838+0200 emacs[26623:452631] nw_path_close_fd Failed to 
close guarded necp fd 8 [9: Bad file descriptor]
2019-07-21 12:26:16.117381+0200 emacs[26679:454282] nw_path_close_fd Failed to 
close guarded necp fd 8 [9: Bad file descriptor]
2019-07-21 12:26:58.124286+0200 emacs[26691:454761] nw_path_close_fd Failed to 
close guarded necp fd 8 [9: Bad file descriptor]
2019-07-21 12:27:00.180428+0200 emacs[26694:454846] nw_path_close_fd Failed to 
close guarded necp fd 8 [9: Bad file descriptor]
2019-07-21 12:27:02.224276+0200 emacs[26708:454913] nw_path_close_fd Failed to 
close guarded necp fd 8 [9: Bad file descriptor]
2019-07-21 13:50:46.001067+0200 emacs[27746:488845] nw_path_close_fd Failed to 
close guarded necp fd 8 [9: Bad file descriptor]
2019-07-21 13:50:54.757005+0200 emacs[27748:488967] nw_path_close_fd Failed to 
close guarded necp fd 8 [9: Bad file descriptor]
2019-07-21 13:51:14.189815+0200 emacs[27764:489204] nw_path_close_fd Failed to 
close guarded necp fd 8 [9: Bad file descriptor]
2019-07-21 14:46:07.639186+0200 emacs[28712:516697] nw_path_close_fd Failed to 
close guarded necp fd 8 [9: Bad file descriptor]
2019-07-21 14:47:23.180579+0200 emacs[28804:518329] nw_path_close_fd Failed to 
close guarded necp fd 8 [9: Bad file descriptor]
2019-07-21 14:48:48.027322+0200 emacs[28834:519841] nw_path_close_fd Failed to 
close guarded necp fd 8 [9: Bad file descriptor]

Process 9545 stopped
* thread #1, queue = 'com.apple.main-thread', stop reason = signal SIGSTOP
    frame #0: 0x00007fff6fb795c2 libsystem_kernel.dylib`__pselect + 10
libsystem_kernel.dylib`__pselect:
->  0x7fff6fb795c2 <+10>: jae    0x7fff6fb795cc            ; <+20>
    0x7fff6fb795c4 <+12>: movq   %rax, %rdi
    0x7fff6fb795c7 <+15>: jmp    0x7fff6fb73421            ; cerror
    0x7fff6fb795cc <+20>: retq
Target 0: (emacs) stopped.
(lldb)
error: No auto repeat.
(lldb) c
Process 9545 resuming
2019-07-21 15:30:13.339659+0200 emacs[29660:557040] nw_path_close_fd Failed to 
close guarded necp fd 8 [9: Bad file descriptor]
2019-07-21 15:55:56.078789+0200 emacs[29998:574005] nw_path_close_fd Failed to 
close guarded necp fd 8 [9: Bad file descriptor]
2019-07-21 15:56:09.184720+0200 emacs[30011:574122] nw_path_close_fd Failed to 
close guarded necp fd 8 [9: Bad file descriptor]
2019-07-21 15:56:26.626043+0200 emacs[30013:574226] nw_path_close_fd Failed to 
close guarded necp fd 8 [9: Bad file descriptor]
2019-07-21 15:56:44.489415+0200 emacs[30016:574337] nw_path_close_fd Failed to 
close guarded necp fd 8 [9: Bad file descriptor]
2019-07-21 15:57:10.106427+0200 emacs[30029:574522] nw_path_close_fd Failed to 
close guarded necp fd 8 [9: Bad file descriptor]
2019-07-21 15:58:05.589844+0200 emacs[30045:574937] nw_path_close_fd Failed to 
close guarded necp fd 8 [9: Bad file descriptor]
2019-07-21 16:21:39.400825+0200 emacs[30614:587945] nw_path_close_fd Failed to 
close guarded necp fd 8 [9: Bad file descriptor]
2019-07-21 16:40:30.080012+0200 emacs[30849:597560] nw_path_close_fd Failed to 
close guarded necp fd 8 [9: Bad file descriptor]
2019-07-21 16:42:52.885387+0200 emacs[30884:598627] nw_path_close_fd Failed to 
close guarded necp fd 8 [9: Bad file descriptor]
2019-07-21 16:42:56.622956+0200 emacs[30886:598656] nw_path_close_fd Failed to 
close guarded necp fd 8 [9: Bad file descriptor]
2019-07-21 18:46:40.041993+0200 emacs[32751:653893] nw_path_close_fd Failed to 
close guarded necp fd 8 [9: Bad file descriptor]
2019-07-21 18:49:41.491249+0200 emacs[32830:656133] nw_path_close_fd Failed to 
close guarded necp fd 8 [9: Bad file descriptor]
2019-07-21 18:50:18.395142+0200 emacs[32844:656537] nw_path_close_fd Failed to 
close guarded necp fd 8 [9: Bad file descriptor]
2019-07-21 18:50:46.436173+0200 emacs[32852:656919] nw_path_close_fd Failed to 
close guarded necp fd 8 [9: Bad file descriptor]
2019-07-21 18:51:10.653719+0200 emacs[32866:657140] nw_path_close_fd Failed to 
close guarded necp fd 8 [9: Bad file descriptor]
2019-07-21 18:51:36.764702+0200 emacs[32870:657330] nw_path_close_fd Failed to 
close guarded necp fd 8 [9: Bad file descriptor]
2019-07-21 18:53:22.954997+0200 emacs[32896:658067] nw_path_close_fd Failed to 
close guarded necp fd 8 [9: Bad file descriptor]
2019-07-21 18:53:32.343062+0200 emacs[32899:658140] nw_path_close_fd Failed to 
close guarded necp fd 8 [9: Bad file descriptor]
2019-07-21 19:11:16.060831+0200 emacs[33149:667448] nw_path_close_fd Failed to 
close guarded necp fd 8 [9: Bad file descriptor]
2019-07-21 19:11:21.477075+0200 emacs[33151:667483] nw_path_close_fd Failed to 
close guarded necp fd 8 [9: Bad file descriptor]
2019-07-21 19:15:28.201008+0200 emacs[33219:669175] nw_path_close_fd Failed to 
close guarded necp fd 8 [9: Bad file descriptor]
2019-07-21 19:16:07.899816+0200 emacs[33235:669559] nw_path_close_fd Failed to 
close guarded necp fd 8 [9: Bad file descriptor]
2019-07-21 19:16:13.187729+0200 emacs[33237:669586] nw_path_close_fd Failed to 
close guarded necp fd 8 [9: Bad file descriptor]
2019-07-21 19:16:20.108804+0200 emacs[33239:669664] nw_path_close_fd Failed to 
close guarded necp fd 8 [9: Bad file descriptor]
2019-07-21 19:16:36.219786+0200 emacs[33243:669807] nw_path_close_fd Failed to 
close guarded necp fd 8 [9: Bad file descriptor]
2019-07-21 19:16:56.210873+0200 emacs[33245:669957] nw_path_close_fd Failed to 
close guarded necp fd 8 [9: Bad file descriptor]
2019-07-21 19:18:35.343660+0200 emacs[33277:670645] nw_path_close_fd Failed to 
close guarded necp fd 8 [9: Bad file descriptor]
2019-07-21 19:19:04.349868+0200 emacs[33290:670858] nw_path_close_fd Failed to 
close guarded necp fd 8 [9: Bad file descriptor]
2019-07-21 19:20:32.108903+0200 emacs[33307:671522] nw_path_close_fd Failed to 
close guarded necp fd 8 [9: Bad file descriptor]
2019-07-21 19:22:03.469323+0200 emacs[33340:672302] nw_path_close_fd Failed to 
close guarded necp fd 8 [9: Bad file descriptor]
2019-07-21 19:22:38.048582+0200 emacs[33343:672521] nw_path_close_fd Failed to 
close guarded necp fd 8 [9: Bad file descriptor]
2019-07-21 19:23:44.267080+0200 emacs[33360:673008] nw_path_close_fd Failed to 
close guarded necp fd 8 [9: Bad file descriptor]
2019-07-21 19:24:56.869375+0200 emacs[33373:673517] nw_path_close_fd Failed to 
close guarded necp fd 8 [9: Bad file descriptor]
2019-07-21 19:30:21.086736+0200 emacs[33459:676300] nw_path_close_fd Failed to 
close guarded necp fd 8 [9: Bad file descriptor]
2019-07-21 19:31:33.563610+0200 emacs[33473:676766] nw_path_close_fd Failed to 
close guarded necp fd 8 [9: Bad file descriptor]
2019-07-21 19:32:56.002587+0200 emacs[33488:677221] nw_path_close_fd Failed to 
close guarded necp fd 8 [9: Bad file descriptor]
2019-07-21 22:48:46.824487+0200 emacs[35959:751002] nw_path_close_fd Failed to 
close guarded necp fd 8 [9: Bad file descriptor]
2019-07-22 08:55:18.190641+0200 emacs[43351:983764] nw_path_close_fd Failed to 
close guarded necp fd 8 [9: Bad file descriptor]
Process 9545 stopped
* thread #1, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS 
(code=1, address=0x11e4c6000)
    frame #0: 0x0000000100d361f6 
libharfbuzz.0.dylib`OT::OpenTypeFontFile::get_face(unsigned int, unsigned int*) 
const + 18
libharfbuzz.0.dylib`OT::OpenTypeFontFile::get_face:
->  0x100d361f6 <+18>: movl   (%rcx), %edi
    0x100d361f8 <+20>: bswapl %edi
    0x100d361fa <+22>: leaq   0x6304f(%rip), %rax       ; _hb_NullPool
    0x100d36201 <+29>: cmpl   $0x74727564, %edi         ; imm = 0x74727564
Target 0: (emacs) stopped.
(lldb) bt
* thread #1, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS 
(code=1, address=0x11e4c6000)
  * frame #0: 0x0000000100d361f6 
libharfbuzz.0.dylib`OT::OpenTypeFontFile::get_face(unsigned int, unsigned int*) 
const + 18
    frame #1: 0x0000000100d35d8f 
libharfbuzz.0.dylib`_hb_face_for_data_reference_table(hb_face_t*, unsigned int, 
void*) + 67
    frame #2: 0x0000000100d360f5 
libharfbuzz.0.dylib`hb_face_t::reference_table(unsigned int) const + 19
    frame #3: 0x0000000100d88f89 libharfbuzz.0.dylib`hb_blob_t* 
hb_sanitize_context_t::reference_table<OT::maxp>(hb_face_t const*, unsigned 
int) + 51
    frame #4: 0x0000000100d88f1e 
libharfbuzz.0.dylib`hb_face_t::load_num_glyphs() const + 60
    frame #5: 0x0000000100d5fe81 libharfbuzz.0.dylib`hb_blob_t* 
hb_sanitize_context_t::reference_table<OT::GSUB>(hb_face_t const*, unsigned 
int) + 33
    frame #6: 0x0000000100d5fd60 
libharfbuzz.0.dylib`OT::GSUBGPOS::accelerator_t<OT::GSUB>::init(hb_face_t*) + 70
    frame #7: 0x0000000100d5fd12 
libharfbuzz.0.dylib`hb_lazy_loader_t<OT::GSUB_accelerator_t, 
hb_face_lazy_loader_t<OT::GSUB_accelerator_t, 18u>, hb_face_t, 18u, 
OT::GSUB_accelerator_t>::create(hb_face_t*) + 44
    frame #8: 0x0000000100d5fcab 
libharfbuzz.0.dylib`hb_lazy_loader_t<OT::GSUB_accelerator_t, 
hb_face_lazy_loader_t<OT::GSUB_accelerator_t, 18u>, hb_face_t, 18u, 
OT::GSUB_accelerator_t>::get_stored() const + 59
    frame #9: 0x0000000100d51f8e 
libharfbuzz.0.dylib`get_gsubgpos_table(hb_face_t*, unsigned int) + 32
    frame #10: 0x0000000100d51f33 
libharfbuzz.0.dylib`hb_ot_layout_table_get_script_tags + 23
    frame #11: 0x00000001001f2fc8 
emacs`hbotf_check_features(otf=0x000000010e61c3a0, gsubp=<unavailable>, 
script=1634885986, language=0, features=0x00000001105af7b0, n_features=4) at 
ftfont.c:2915:7 [opt]
    frame #12: 0x00000001001f0e48 emacs`ftfont_list(f=<unavailable>, 
spec=0x00000001033cbb6d) at ftfont.c:942:14 [opt]
    frame #13: 0x00000001001f0a2e emacs`ftfont_list2(f=<unavailable>, 
spec=<unavailable>, type=0x000000000000eb50) at ftfont.c:1007:22 [opt]
    frame #14: 0x0000000100197504 
emacs`font_list_entities(f=0x0000000102805600, spec=0x0000000118185375) at 
font.c:2786:12 [opt]
    frame #15: 0x00000001001999c0 
emacs`font_find_for_lface(f=0x0000000102805600, attrs=0x00000001173d0c40, 
spec=<unavailable>, c=-1) at font.c:3277:16 [opt]
    frame #16: 0x00000001001fa147 
emacs`fontset_find_font(fontset=0x000000011bad0865, c=1641, 
face=0x00000001173d0c40, charset_id=<unavailable>, fallback=<unavailable>) at 
fontset.c:653:18 [opt]
    frame #17: 0x00000001001f6de8 emacs`fontset_font(fontset=<unavailable>, 
c=1641, face=0x00000001173d0c40, id=-1) at fontset.c:775:4 [opt]
    frame #18: 0x00000001001f7044 emacs`font_for_char(face=0x00000001173d0c40, 
c=<unavailable>, pos=<unavailable>, object=<unavailable>) at fontset.c:1056:15 
[opt]
    frame #19: 0x000000010019b6f6 emacs`font_range(pos=13500, pos_byte=13502, 
limit=0x00007ffeefbfd628, w=<unavailable>, face=0x00000001173d0c40, 
string=0x0000000000000000) at font.c:3860:18 [opt]
    frame #20: 0x00000001001e6049 emacs`autocmp_chars(rule=<unavailable>, 
charpos=<unavailable>, bytepos=13502, limit=13501, win=0x0000000118841d80, 
face=0x0000000000000000, string=0x0000000000000000, 
direction=0x0000000000002580) at composite.c:899:21 [opt]
    frame #21: 0x00000001001e5c54 
emacs`composition_reseat_it(cmp_it=0x00007ffeefbfd740, charpos=13500, 
bytepos=13502, endpos=<unavailable>, w=0x0000000118841d80, bidi_level='\0', 
face=0x0000000000000000, string=0x0000000000000000) at composite.c:1222:19 [opt]
    frame #22: 0x000000010013a49c 
emacs`scan_for_column(endpos=0x00007ffeefbfd838, goalcol=0x00007ffeefbfd848, 
prevcol=0x0000000000000000) at indent.c:600:11 [opt]
    frame #23: 0x0000000100138bf8 emacs`current_column [inlined] 
current_column_1 at indent.c:725:3 [opt]
    frame #24: 0x0000000100138be1 emacs`current_column at indent.c:351 [opt]
    frame #25: 0x00000001001c2055 emacs`exec_byte_code(bytestr=<unavailable>, 
vector=0x000000010f14a6c5, maxdepth=<unavailable>, 
args_template=0x0000000000000000, nargs=0, args=<unavailable>) at 
bytecode.c:1109:4 [opt]
    frame #26: 0x0000000100182b98 emacs`funcall_lambda(fun=0x0000000110b0fae5, 
nargs=1, arg_vector=0x00007ffeefbfdac0) at eval.c:3072:13 [opt]
    frame #27: 0x0000000100181cd9 emacs`Ffuncall(nargs=<unavailable>, 
args=<unavailable>) at eval.c:0:4 [opt]
    frame #28: 0x00000001001c1046 emacs`exec_byte_code(bytestr=<unavailable>, 
vector=0x0000000110a6d705, maxdepth=<unavailable>, 
args_template=0x0000000000000000, nargs=0, args=<unavailable>) at 
bytecode.c:633:12 [opt]
    frame #29: 0x0000000100182b98 emacs`funcall_lambda(fun=0x0000000110b0faa5, 
nargs=2, arg_vector=0x00007ffeefbfdd50) at eval.c:3072:13 [opt]
    frame #30: 0x0000000100181cd9 emacs`Ffuncall(nargs=<unavailable>, 
args=<unavailable>) at eval.c:0:4 [opt]
    frame #31: 0x00000001001c1046 emacs`exec_byte_code(bytestr=<unavailable>, 
vector=0x000000010f132635, maxdepth=<unavailable>, 
args_template=0x0000000000000000, nargs=0, args=<unavailable>) at 
bytecode.c:633:12 [opt]
    frame #32: 0x0000000100182b98 emacs`funcall_lambda(fun=0x0000000110b0fa75, 
nargs=0, arg_vector=0x00007ffeefbfdf10) at eval.c:3072:13 [opt]
    frame #33: 0x0000000100181cd9 emacs`Ffuncall(nargs=<unavailable>, 
args=<unavailable>) at eval.c:0:4 [opt]
    frame #34: 0x00000001001c1046 emacs`exec_byte_code(bytestr=<unavailable>, 
vector=0x00000001068d0a75, maxdepth=<unavailable>, 
args_template=0x0000000000000000, nargs=0, args=<unavailable>) at 
bytecode.c:633:12 [opt]
    frame #35: 0x0000000100182b98 emacs`funcall_lambda(fun=0x00000001068d0ba5, 
nargs=4, arg_vector=0x00007ffeefbfe1d0) at eval.c:3072:13 [opt]
    frame #36: 0x0000000100181cd9 emacs`Ffuncall(nargs=<unavailable>, 
args=<unavailable>) at eval.c:0:4 [opt]
    frame #37: 0x00000001001c1046 emacs`exec_byte_code(bytestr=<unavailable>, 
vector=0x0000000101d6e035, maxdepth=<unavailable>, 
args_template=0x0000000000000000, nargs=0, args=<unavailable>) at 
bytecode.c:633:12 [opt]
    frame #38: 0x0000000100182b98 emacs`funcall_lambda(fun=0x0000000101ca1e35, 
nargs=0, arg_vector=0x00007ffeefbfe4b0) at eval.c:3072:13 [opt]
    frame #39: 0x0000000100181cd9 emacs`Ffuncall(nargs=<unavailable>, 
args=<unavailable>) at eval.c:0:4 [opt]
    frame #40: 0x00000001001c1046 emacs`exec_byte_code(bytestr=<unavailable>, 
vector=0x0000000101d6b105, maxdepth=<unavailable>, 
args_template=0x0000000000000000, nargs=0, args=<unavailable>) at 
bytecode.c:633:12 [opt]
    frame #41: 0x0000000100182b98 emacs`funcall_lambda(fun=0x00000001068a6aa5, 
nargs=0, arg_vector=0x00007ffeefbfe6a0) at eval.c:3072:13 [opt]
    frame #42: 0x0000000100181cd9 emacs`Ffuncall(nargs=<unavailable>, 
args=<unavailable>) at eval.c:0:4 [opt]
    frame #43: 0x00000001001c1046 emacs`exec_byte_code(bytestr=<unavailable>, 
vector=0x00000001068a6835, maxdepth=<unavailable>, 
args_template=0x0000000000000000, nargs=0, args=<unavailable>) at 
bytecode.c:633:12 [opt]
    frame #44: 0x0000000100182b98 emacs`funcall_lambda(fun=0x00000001068a6a75, 
nargs=2, arg_vector=0x00007ffeefbfea10) at eval.c:3072:13 [opt]
    frame #45: 0x0000000100181cd9 emacs`Ffuncall(nargs=<unavailable>, 
args=<unavailable>) at eval.c:0:4 [opt]
    frame #46: 0x00000001001c1046 emacs`exec_byte_code(bytestr=<unavailable>, 
vector=0x0000000106a08d95, maxdepth=<unavailable>, 
args_template=0x0000000000000806, nargs=1, args=<unavailable>) at 
bytecode.c:633:12 [opt]
    frame #47: 0x0000000100181cd9 emacs`Ffuncall(nargs=<unavailable>, 
args=<unavailable>) at eval.c:0:4 [opt]
    frame #48: 0x00000001001c1046 emacs`exec_byte_code(bytestr=<unavailable>, 
vector=0x0000000101e404b5, maxdepth=<unavailable>, 
args_template=0x0000000000000c02, nargs=1, args=<unavailable>) at 
bytecode.c:633:12 [opt]
    frame #49: 0x0000000100181cd9 emacs`Ffuncall(nargs=<unavailable>, 
args=<unavailable>) at eval.c:0:4 [opt]
    frame #50: 0x000000010017ae09 
emacs`Ffuncall_interactively(nargs=<unavailable>, args=<unavailable>) at 
callint.c:255:32 [opt]
    frame #51: 0x0000000100181d3b emacs`Ffuncall(nargs=<unavailable>, 
args=<unavailable>) at eval.c:2799:11 [opt]
    frame #52: 0x000000010017c28f 
emacs`Fcall_interactively(function=<unavailable>, 
record_flag=0x0000000000000000, keys=0x0000000105edfa65) at callint.c:783:21 
[opt]
    frame #53: 0x000000010018279b emacs`funcall_subr(subr=0x0000000100258af0, 
numargs=3, args=<unavailable>) at eval.c:2877:19 [opt]
    frame #54: 0x0000000100181d3b emacs`Ffuncall(nargs=<unavailable>, 
args=<unavailable>) at eval.c:2799:11 [opt]
    frame #55: 0x00000001001c1046 emacs`exec_byte_code(bytestr=<unavailable>, 
vector=0x0000000103248595, maxdepth=<unavailable>, 
args_template=0x0000000000001006, nargs=1, args=<unavailable>) at 
bytecode.c:633:12 [opt]
    frame #56: 0x0000000100181cd9 emacs`Ffuncall(nargs=<unavailable>, 
args=<unavailable>) at eval.c:0:4 [opt]
    frame #57: 0x00000001001823cc emacs`call1(fn=<unavailable>, 
arg1=<unavailable>) at eval.c:2652:10 [opt]
    frame #58: 0x00000001000f8b98 emacs`command_loop_1 at keyboard.c:1461:13 
[opt]
    frame #59: 0x0000000100180289 
emacs`internal_condition_case(bfun=(emacs`command_loop_1 at keyboard.c:1239), 
handlers=0x0000000000000090, hfun=<unavailable>) at eval.c:1351:25 [opt]
    frame #60: 0x00000001001082f0 emacs`command_loop_2(ignore=<unavailable>) at 
keyboard.c:1091:11 [opt]
    frame #61: 0x000000010017f957 emacs`internal_catch(tag=0x000000000000ced0, 
func=(emacs`command_loop_2 at keyboard.c:1087), arg=0x0000000000000000) at 
eval.c:1112:25 [opt]
    frame #62: 0x00000001000f790e emacs`command_loop at keyboard.c:1070:2 [opt]
    frame #63: 0x00000001000f7823 emacs`recursive_edit_1 at keyboard.c:714:9 
[opt]
    frame #64: 0x00000001000f7acb emacs`Frecursive_edit at keyboard.c:786:3 
[opt]
    frame #65: 0x00000001000f6287 emacs`main(argc=<unavailable>, 
argv=0x00007ffeefbff760) at emacs.c:2086:3 [opt]
    frame #66: 0x00007fff6fa3e3d5 libdyld.dylib`start + 1
(lldb)

In GNU Emacs 27.0.50 (build 4, x86_64-apple-darwin18.6.0, X toolkit, Xaw3d 
scroll bars)
 of 2019-06-18 built on macsl
Repository revision: e8751c0ce374e1fde4fdabf5dc3504996013fd79
Repository branch: master
Windowing system distributor 'The X.Org Foundation', version 11.0.11804000
System Description:  Mac OS X 10.14.5

Recent messages:
BBDB could not be loaded.
Loading experimental modules...
Done loading experimental modules.
emacs/lisp/solarized-definitions.el: ‘flet’ is an obsolete macro (as of 24.3); 
use either ‘cl-flet’ or ‘cl-letf’.
Specified image bit depth is not supported by XRender [10 times]
Loading autoinsert...done
Loading gnus...done
Loading avoid...done
Waiting for git... [2 times]
For information about GNU Emacs and the GNU system, type C-h C-a.

Configured using:
 'configure --verbose --with-x --with-x-toolkit=lucid --with-ns=no
 --without-makeinfo
 LIBXML2_CFLAGS=-I/usr/local/opt/libxml2/include/libxml2
 'LIBXML2_LIBS=-L/usr/local/opt/libxml2/lib -lxml2' --with-jpeg=no
 --with-gif=no --with-tiff=no --x-libraries=/usr/X11/lib
 --x-includes=/usr/X11/include --with-xpm=no
 
PKG_CONFIG_PATH=/usr/local/lib/pkgconfig:/usr/local/share/pkgconfig:/usr/X11/lib/pkgconfig:/usr/X11/share/pkgconfig'

Configured features:
XAW3D PNG DBUS NOTIFY KQUEUE ACL GNUTLS LIBXML2 FREETYPE HARFBUZZ XFT
ZLIB TOOLKIT_SCROLL_BARS LUCID X11 XDBE XIM THREADS JSON PDUMPER LCMS2
GMP

Important settings:
  value of $LC_CTYPE: en_US.UTF-8
  value of $LANG: en_US.UTF-8
  locale-coding-system: utf-8-unix

Major mode: Lisp Interaction

Minor modes in effect:
  shell-dirtrack-mode: t
  auto-insert-mode: t
  tooltip-mode: t
  global-eldoc-mode: t
  eldoc-mode: t
  mouse-wheel-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  temp-buffer-resize-mode: t
  line-number-mode: t
  transient-mark-mode: t

Load-path shadows:
/Users/leinen/.emacs.d/elpa/lsp-go-20180914.515/lsp-go hides 
/Users/leinen/.emacs.d/elpa/lsp-mode-20190709.442/lsp-go
/Users/leinen/.emacs.d/elpa/lsp-rust-20180305.1308/lsp-rust hides 
/Users/leinen/.emacs.d/elpa/lsp-mode-20190709.442/lsp-rust

Features:
(shadow sort mail-extr emacsbug message rmc puny dired dired-loaddefs
rfc822 mml mml-sec epa derived epg mm-decode mm-bodies mm-encode
mail-parse rfc2231 mailabbrev gmm-utils mailheader imenu elec-pair
warnings advice finder-inf tex-site confluence-edit-autoloads
docker-tramp tramp-cache epoch-view-autoloads idle-highlight-autoloads
rx cl-extra help-mode gh-common marshal eieio-compat logito-autoloads
pod-mode-autoloads rnc-mode-autoloads slime-autoloads
windresize-autoloads info package easymenu epg-config url-handlers
url-parse url-vars tramp tramp-loaddefs trampver tramp-integration
files-x tramp-compat shell pcomplete comint ansi-color ring parse-time
format-spec avoid gnus nnheader gnus-util rmail rmail-loaddefs
text-property-search time-date wid-edit autoinsert cus-start cus-load
solarized-light-theme solarized-definitions cl smtpmail auth-source
cl-seq eieio eieio-core cl-macs eieio-loaddefs password-cache json
subr-x map seq byte-opt gv bytecomp byte-compile cconv sendmail rfc2047
rfc2045 ietf-drums mail-utils timeclock cl-loaddefs cl-lib vm-startup
vm-search vm-edit vm-reply vm-mark vm-smime vm-delete vm-digest vm-undo
vm-page vm-virtual vm-summary-faces vm-pop utf7 mm-util mail-prsvr
vm-imap vm-thread vm-mime vm-motion vm-mouse vm-toolbar vm-menu
vm-window vm-crypto vm-summary vm-folder vm-minibuf vm-misc vm-sort
vm-autoloads vm-vars vm-version vm mule-util early-init tooltip eldoc
electric uniquify ediff-hook vc-hooks lisp-float-type mwheel term/x-win
x-win term/common-win x-dnd tool-bar dnd fontset image regexp-opt fringe
tabulated-list replace newcomment text-mode elisp-mode lisp-mode
prog-mode register page menu-bar rfn-eshadow isearch timer select
scroll-bar mouse jit-lock font-lock syntax facemenu font-core
term/tty-colors frame cl-generic cham georgian utf-8-lang misc-lang
vietnamese tibetan thai tai-viet lao korean japanese eucjp-ms cp51932
hebrew greek romanian slovak czech european ethiopic indian cyrillic
chinese composite charscript charprop case-table epa-hook jka-cmpr-hook
help simple abbrev obarray minibuffer cl-preloaded nadvice loaddefs
button faces cus-face macroexp files text-properties overlay sha1 md5
base64 format env code-pages mule custom widget hashtable-print-readable
backquote threads dbusbind kqueue lcms2 dynamic-setting
font-render-setting x-toolkit x multi-tty make-network-process emacs)

Memory information:
((conses 16 283671 16225)
 (symbols 48 23464 1)
 (strings 32 96293 4705)
 (string-bytes 1 2948897)
 (vectors 16 27044)
 (vector-slots 8 381510 12246)
 (floats 8 69 13)
 (intervals 56 306 0)
 (buffers 992 14))
-- 
Simon.