Vim: Caught deadly signal SEGV on MacOS Mojave

[wangxuw]

Issue Details

Provide a clear description of the problem, including the following key
questions:

I just updated my macOS from High Sierra to Mojave. When I used Vim in High Sierra, Ycm functioned well. But when I first opened Vim today, it showed as below:
Vim: Caught deadly signal SEGV
Error detected while processing function 81_PollServerReady[7]..81_Pyeval:Vim: Finished.

line 4:
Exception MemoryError: MemoryError() in <module 'threading' from '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/threading.pyc'> ignored
Segmentation fault: 11

so I commented the Ycm configuration line of vundle plugin management in my .vimrc file.
and Vim launches normally again.

Diagnostic data

Output of vim --version

VIM - Vi IMproved 8.0 (2016 Sep 12, compiled Aug 17 2018 15:22:29)
Included patches: 1-503, 505-680, 682-1283
Compiled by root@apple.com
Normal version without GUI. Features included (+) or not (-):
+acl +file_in_path -mouse_sgr +tag_old_static
-arabic +find_in_path -mouse_sysmouse -tag_any_white
+autocmd +float -mouse_urxvt -tcl
-balloon_eval +folding +mouse_xterm -termguicolors
-browse -footer +multi_byte -terminal
+builtin_terms +fork() +multi_lang +terminfo
+byte_offset -gettext -mzscheme +termresponse
+channel -hangul_input +netbeans_intg +textobjects
+cindent +iconv +num64 +timers
-clientserver +insert_expand +packages +title
-clipboard +job +path_extra -toolbar
+cmdline_compl +jumplist -perl +user_commands
+cmdline_hist -keymap +persistent_undo +vertsplit
+cmdline_info +lambda +postscript +virtualedit
+comments -langmap +printer +visual
-conceal +libcall -profile +visualextra
+cryptv +linebreak +python/dyn +viminfo
+cscope +lispindent -python3 +vreplace
+cursorbind +listcmds +quickfix +wildignore
+cursorshape +localmap +reltime +wildmenu
+dialog_con -lua -rightleft +windows
+diff +menu +ruby/dyn +writebackup
+digraphs +mksession +scrollbind -X11
-dnd +modify_fname +signs -xfontset
-ebcdic +mouse +smartindent -xim
-emacs_tags -mouseshape +startuptime -xpm
+eval -mouse_dec +statusline -xsmp
+ex_extra -mouse_gpm -sun_workshop -xterm_clipboard
+extra_search -mouse_jsbterm +syntax -xterm_save
-farsi -mouse_netterm +tag_binary
system vimrc file: "$VIM/vimrc"
user vimrc file: "$HOME/.vimrc"
2nd user vimrc file: "~/.vim/vimrc"
user exrc file: "$HOME/.exrc"
defaults file: "$VIMRUNTIME/defaults.vim"
fall-back for $VIM: "/usr/share/vim"
Compilation: gcc -c -I. -Iproto -DHAVE_CONFIG_H -DMACOS_X_UNIX -g -O2 -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=1
Linking: gcc -L/usr/local/lib -o vim -lm -lncurses -liconv -framework Cocoa

OS version, distribution, etc.

macOS Mojave, version 10.14

Output of build/install commands

None error or failure happened when I re-excuted the ./install.py after I commented the Ycm plugin in vundle.

[micbou]

Duplicate of #3165.