Hello, Unfortunately, I'm not sure how to reproduce the crash, it's just that after some time, emacs segs fault, the backtrace is below. This happens when I type, generally, and I think it may be related to company. I use emacs every day, and this would happen maybe twice a day. I'll try to install gdb and follow the instructions below, but I remember it was not so easy to install gdb on macos last time I tried. Thanks, Pierre (base) pierrelasorak@IC-FVFFRHBFQ05F > emacs -nw Fatal error 11: Segmentation fault Backtrace: 0 emacs 0x00000001005b3658 emacs_backtrace + 164 1 emacs 0x0000000100664ffc terminate_due_to_signal + 140 2 emacs 0x00000001005b46c0 deliver_thread_signal + 0 3 emacs 0x00000001005b473c init_bignum + 0 4 emacs 0x00000001005b33b0 maybe_fatal_sig + 0 5 libsystem_platform.dylib 0x00000001819bec44 _sigtramp + 56 6 emacs 0x0000000100532fc8 pos_visible_p + 3908 7 emacs 0x0000000100559a90 Fpos_visible_in_window_p + 444 8 emacs 0x000000010060649c funcall_subr + 328 9 emacs 0x0000000100605c3c Ffuncall + 628 10 emacs 0x00000001006329b8 exec_byte_code + 1376 11 emacs 0x0000000100605bc4 Ffuncall + 508 12 emacs 0x00000001006329b8 exec_byte_code + 1376 13 emacs 0x0000000100605bc4 Ffuncall + 508 14 emacs 0x00000001006329b8 exec_byte_code + 1376 15 emacs 0x0000000100605bc4 Ffuncall + 508 16 emacs 0x0000000100605c3c Ffuncall + 628 17 emacs 0x00000001006329b8 exec_byte_code + 1376 18 emacs 0x0000000100605bc4 Ffuncall + 508 19 emacs 0x00000001006060d4 call1 + 44 20 emacs 0x00000001005a3e30 timer_check + 808 21 emacs 0x00000001005a2b10 readable_events + 24 22 emacs 0x00000001005a3a94 get_input_pending + 60 23 emacs 0x00000001005a28e0 detect_input_pending_run_timers + 56 24 emacs 0x000000010063ac08 wait_reading_process_output + 3620 25 emacs 0x0000000100527888 sit_for + 292 26 emacs 0x00000001005a0e6c read_char + 3252 27 emacs 0x000000010059ef64 read_key_sequence + 1120 28 emacs 0x000000010059def8 command_loop_1 + 800 29 emacs 0x0000000100604790 internal_condition_case + 92 30 emacs 0x00000001005a9f6c command_loop_2 + 44 31 emacs 0x000000010060441c internal_catch + 84 32 emacs 0x000000010066530c recursive_edit_1.cold.1 + 80 33 emacs 0x000000010059d514 recursive_edit_1 + 244 34 emacs 0x000000010059d658 Frecursive_edit + 288 35 emacs 0x000000010059cb70 main + 6320 36 libdyld.dylib 0x0000000181991430 start + 4 [1] 86528 segmentation fault emacs -nw If Emacs crashed, and you have the Emacs process in the gdb debugger, please include the output from the following gdb commands: 'bt full' and 'xbacktrace'. For information about debugging Emacs, please read the file /opt/homebrew/Cellar/emacs/27.2/share/emacs/27.2/etc/DEBUG. In GNU Emacs 27.2 (build 1, arm-apple-darwin20.3.0) of 2021-03-25 built on HMBRW-A-001-M1-004.local System Description: macOS 11.6.2 Recent messages: Contacting host: elpa.gnu.org:80 Package refresh done Loading /Users/pierrelasorak/.emacs.d/config.el (source)... Waiting for git... [2 times] [yas] Prepared just-in-time loading of snippets successfully. Loading /Users/pierrelasorak/.emacs.d/config.el (source)...done Loaded /Users/pierrelasorak/.emacs.d/config.el Turning on magit-auto-revert-mode...done For information about GNU Emacs and the GNU system, type C-h C-a. Package cl is deprecated Configured using: 'configure --disable-silent-rules --enable-locallisppath=/opt/homebrew/share/emacs/site-lisp --infodir=/opt/homebrew/Cellar/emacs/27.2/share/info/emacs --prefix=/opt/homebrew/Cellar/emacs/27.2 --with-gnutls --without-x --with-xml2 --without-dbus --with-modules --without-ns --without-imagemagick --without-selinux' Configured features: NOTIFY KQUEUE ACL GNUTLS LIBXML2 ZLIB MODULES THREADS JSON PDUMPER GMP Important settings: value of $LANG: en_GB.UTF-8 locale-coding-system: utf-8-unix Major mode: Lisp Interaction Minor modes in effect: disable-mouse-global-mode: t global-magit-file-mode: t magit-auto-revert-mode: t global-git-commit-mode: t async-bytecomp-package-mode: t golden-ratio-mode: t which-function-mode: t flx-ido-mode: t ido-ubiquitous-mode: t ido-everywhere: t TeX-PDF-mode: t global-company-mode: t company-mode: t which-key-mode: t global-subword-mode: t subword-mode: t shell-dirtrack-mode: t beacon-mode: t show-paren-mode: t global-hungry-delete-mode: t hungry-delete-mode: t nyan-mode: t override-global-mode: t rainbow-delimiters-mode: t global-linum-mode: t linum-mode: t display-time-mode: t tooltip-mode: t global-eldoc-mode: t eldoc-mode: t electric-indent-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 column-number-mode: t line-number-mode: t transient-mark-mode: t Load-path shadows: ~/.emacs.d/site-lisp/root-help hides /opt/homebrew/share/emacs/site-lisp/root/root-help Features: (shadow sort mail-extr emacsbug sendmail term/xterm xterm company-oddmuse company-keywords company-etags company-gtags company-dabbrev-code company-dabbrev company-files company-capf company-cmake company-xcode company-clang company-semantic company-eclim company-bbdb web-mode-expansions web-mode disable-mouse magit-bookmark magit-submodule magit-obsolete magit-blame magit-stash magit-reflog magit-bisect magit-push magit-pull magit-fetch magit-clone magit-remote magit-commit magit-sequence magit-notes magit-worktree magit-tag magit-merge magit-branch magit-reset magit-files magit-refs magit-status magit magit-repos magit-apply magit-wip magit-log magit-diff smerge-mode diff diff-mode magit-core magit-autorevert autorevert filenotify magit-margin magit-transient magit-process magit-mode git-commit transient magit-git magit-section magit-utils log-edit pcvs-util add-log with-editor async-bytecomp async server dired+ image-dired image-file dired-x dired-aux interaction-log art-fhicl-mode golden-ratio smex which-func imenu ido-hacks flx-ido flx ido-completing-read+ memoize minibuf-eldef ido company-math math-symbol-lists tex crm yasnippet-snippets yasnippet company-irony company-template irony-completion irony-snippet irony irony-iotask company root-help term disp-table ehelp diminish pcase spaceline-config spaceline-segments s spaceline powerline powerline-separators color powerline-themes dash which-key cmake-mode rx astyle reformatter subword-mode-expansions cap-words superword subword ggtags etags fileloop generator xref project ewoc docker-tramp tramp-cache tramp tramp-loaddefs trampver tramp-integration files-x tramp-compat shell parse-time iso8601 ls-lisp multiple-cursors mc-hide-unmatched-lines-mode mc-separate-operations rectangular-region-mode mc-mark-pop mc-mark-more mc-cycle-cursors mc-edit-lines multiple-cursors-core rect beacon paren hungry-delete exec-path-from-shell ws-butler nyan-mode sos cl org-clock org-bullets use-package-bind-key bind-key rainbow-delimiters linum time expand-region text-mode-expansions the-org-mode-expansions er-basic-expansions thingatpt expand-region-core expand-region-custom pdf-tools compile cus-edit cus-start cus-load wid-edit pdf-view bookmark pp jka-compr pdf-cache pdf-info tq pdf-util image-mode exif image edmacro kmacro org ob ob-tangle ob-ref ob-lob ob-table ob-exp org-macro org-footnote org-src ob-comint org-pcomplete pcomplete comint ansi-color ring org-list org-faces org-entities noutline outline easy-mmode org-version ob-emacs-lisp ob-core ob-eval org-table ol regexp-opt org-keys org-compat advice org-macs org-loaddefs find-func cal-menu calendar cal-loaddefs darkokai-theme cl-extra help-mode use-package-ensure use-package-core mm-archive message dired dired-loaddefs format-spec rfc822 mml mml-sec epa derived epg gnus-util rmail rmail-loaddefs text-property-search time-date mailabbrev gmm-utils mailheader mm-decode mm-bodies mm-encode gnutls mail-utils network-stream url-http mail-parse rfc2231 rfc2047 rfc2045 mm-util ietf-drums mail-prsvr url-gw nsm rmc puny url-cache url-auth url url-proxy url-privacy url-expand url-methods url-history url-cookie url-domsuf url-util mailcap epg-config finder-inf tex-site info tool-bar package easymenu browse-url url-handlers url-parse auth-source cl-seq eieio eieio-core cl-macs eieio-loaddefs password-cache json subr-x map url-vars seq byte-opt gv bytecomp byte-compile cconv cl-loaddefs cl-lib tooltip eldoc electric uniquify ediff-hook vc-hooks lisp-float-type tabulated-list replace newcomment text-mode elisp-mode lisp-mode prog-mode register page tab-bar menu-bar rfn-eshadow isearch timer select mouse jit-lock font-lock syntax facemenu font-core term/tty-colors frame minibuffer 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 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 kqueue multi-tty make-network-process emacs) Memory information: ((conses 16 666526 39344) (symbols 48 38725 54) (strings 32 177532 4345) (string-bytes 1 4849227) (vectors 16 77662) (vector-slots 8 1599493 103436) (floats 8 458 397) (intervals 56 3425 200) (buffers 1000 11))