Searching in develop branch freezes emacs solid

[mathpunk]

Description

evil-search-forward freezes emacs

Reproduction guide 🪲

• Start Emacs
• Open a file -- I've observed the behavior in org, ruby, and markdown files
• Use / to search forward for a word of three or more letters

Observed behaviour: 👀 💔
Emacs freezes. Usually I use ps -ef|grep emacs to find the process, and kill it; sometimes that only kills emacs, other times I actually get shoved all the way out of the session and have to log in again.

Expected behaviour: ❤️ 😄
Point jumps to the first instance of the partial word searched.

System Info 💻

• OS: gnu/linux
• Emacs: 25.2.2
• Spacemacs: 0.200.9
• Spacemacs branch: develop (rev. 0fb17fa)
• Graphic display: t
• Distribution: spacemacs
• Editing style: vim
• Completion: ivy
• Layers:

(own ivy better-defaults
     (auto-completion :variables auto-completion-tab-key-behavior 'cycle auto-completion-space-key-behavior 'reject auto-completion-return-key-behavior 'reject auto-completion-enable-help-tooltip t auto-completion-enable-snippets-in-popup t auto-completion-enable-sort-by-usage t auto-completion-complete-with-key-sequence "df" auto-completion-complete-with-key-sequence-delay 0.3)
     (shell :variables shell-default-shell 'ansi-term shell-default-term-shell "/usr/bin/zsh" shell-default-height 40 shell-default-position 'bottom)
     shell-scripts
     (org :variables org-enable-reveal-js-support t org-enable-org-journal-support t)
     yaml csv html restclient emacs-lisp clojure
     (ruby :variables ruby-test-runner 'rspec ruby-version-manager 'chruby ruby-enable-enh-ruby-mode t)
     syntax-checking git github markdown deft latex themes-megapack typography emoji)

• System configuration features: XPM JPEG TIFF GIF PNG RSVG IMAGEMAGICK SOUND GPM DBUS GCONF GSETTINGS NOTIFY LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT LIBOTF XFT ZLIB TOOLKIT_SCROLL_BARS GTK3 X11 MODULES

Backtrace 🐾

<<BACKTRACE IF RELEVANT>>

[duianto]

Confirmed, it just happened again.

I switched to the messages buffer SPC b m, pressed /, and typed obsolete. The minibuffer only showed /ob, when Emacs stopped responding to any key presses, I tried C-g and Esc several times.

The cpu usage of emacs.exe, jumped to a steady 25% (I think it was 25% on all 4 cores, at least the computer fan(s) spun up, indicating that it was working hard).

It doesn't happen again, after force restarting Emacs, so it's probably related to something else prior to starting a / search. I haven't been able to come up with any reproduction steps.

Emacs has stopped responding like this, a couple of times since I started using Spac(emacs) about a year ago. I don't remember every occurrence but it has also happened in one (or more) HELM buffers, so it might be search related.

Testing

This probably is unrelated, since Emacs has frozen before I started trying the platinum searcher, but I'll try to remove the environment variable path to pt and check if it happens again.

System Info 💻

• OS: windows-nt
• Emacs: 25.2.2
• Spacemacs: 0.200.9
• Spacemacs branch: develop (rev. 0fb17fa)
• Graphic display: t
• Distribution: spacemacs
• Editing style: vim
• Completion: helm
• Layers:

(autohotkey
 (auto-completion :variables auto-completion-enable-help-tooltip 'manual)
 colors emacs-lisp git haskell helm markdown org spell-checking version-control)

• System configuration features: XPM JPEG TIFF GIF PNG RSVG SOUND NOTIFY ACL GNUTLS LIBXML2 ZLIB TOOLKIT_SCROLL_BARS MODULES

[mathpunk]

See also #9220, and TheBB/spaceline#123. I'll try some of those diagnostics when I get a chance.

[mathpunk]

This workaround seems to have solved the problem.

TheBB/spaceline#123 (comment)