Segmentation Fault on Ubuntu with view_components

[noelblaschke]

Running rspec in a github action with ubuntu produces the following issue:

Run bundle exec rspec -t ~integration_test
/home/runner/work/project_name/vendor/bundle/ruby/3.4.0/gems/herb-0.7.5-x86_64-linux-gnu/lib/herb/engine.rb:100: [BUG] Segmentation fault at 0x0000000000000000
ruby 3.4.4 (2025-05-14 revision a38531fd3f) +PRISM [x86_64-linux]

-- Control frame information -----------------------------------------------
c:0075 p:---- s:0426 e:000425 CFUNC  :parse
c:0074 p:0520 s:0421 e:000420 METHOD /home/runner/work/project_name/vendor/bundle/ruby/3.4.0/gems/herb-0.7.5-x86_64-linux-gnu/lib/herb/engine.rb:100
...

 -- Ruby level backtrace information ----------------------------------------
... starting from a component spec file
/home/runner/work/project_name/spec/rails_helper.rb:9:in '<top (required)>'
/home/runner/work/project_name/spec/rails_helper.rb:9:in 'require_relative'
/home/runner/work/project_name/config/environment.rb:7:in '<top (required)>'
/home/runner/work/project_name/vendor/bundle/ruby/3.4.0/gems/railties-8.0.3/lib/rails/application.rb:444:in 'initialize!'
/home/runner/work/project_name/vendor/bundle/ruby/3.4.0/gems/railties-8.0.3/lib/rails/initializable.rb:60:in 'run_initializers'
/home/runner/work/project_name/vendor/bundle/ruby/3.4.0/gems/tsort-0.2.0/lib/tsort.rb:208:in 'tsort_each'
/home/runner/work/project_name/vendor/bundle/ruby/3.4.0/gems/tsort-0.2.0/lib/tsort.rb:229:in 'tsort_each'
/home/runner/work/project_name/vendor/bundle/ruby/3.4.0/gems/tsort-0.2.0/lib/tsort.rb:350:in 'each_strongly_connected_component'
/home/runner/work/project_name/vendor/bundle/ruby/3.4.0/gems/tsort-0.2.0/lib/tsort.rb:350:in 'call'
/home/runner/work/project_name/vendor/bundle/ruby/3.4.0/gems/tsort-0.2.0/lib/tsort.rb:350:in 'each'
/home/runner/work/project_name/vendor/bundle/ruby/3.4.0/gems/tsort-0.2.0/lib/tsort.rb:352:in 'block in each_strongly_connected_component'
/home/runner/work/project_name/vendor/bundle/ruby/3.4.0/gems/tsort-0.2.0/lib/tsort.rb:434:in 'each_strongly_connected_component_from'
/home/runner/work/project_name/vendor/bundle/ruby/3.4.0/gems/tsort-0.2.0/lib/tsort.rb:353:in 'block (2 levels) in each_strongly_connected_component'
/home/runner/work/project_name/vendor/bundle/ruby/3.4.0/gems/tsort-0.2.0/lib/tsort.rb:231:in 'block in tsort_each'
/home/runner/work/project_name/vendor/bundle/ruby/3.4.0/gems/railties-8.0.3/lib/rails/initializable.rb:61:in 'block in run_initializers'
/home/runner/work/project_name/vendor/bundle/ruby/3.4.0/gems/railties-8.0.3/lib/rails/initializable.rb:32:in 'run'
/home/runner/work/project_name/vendor/bundle/ruby/3.4.0/gems/railties-8.0.3/lib/rails/initializable.rb:32:in 'instance_exec'
/home/runner/work/project_name/vendor/bundle/ruby/3.4.0/gems/railties-8.0.3/lib/rails/application/finisher.rb:93:in 'block in <module:Finisher>'
/home/runner/work/project_name/vendor/bundle/ruby/3.4.0/gems/activesupport-8.0.3/lib/active_support/lazy_load_hooks.rb:77:in 'run_load_hooks'
/home/runner/work/project_name/vendor/bundle/ruby/3.4.0/gems/activesupport-8.0.3/lib/active_support/lazy_load_hooks.rb:77:in 'each'
/home/runner/work/project_name/vendor/bundle/ruby/3.4.0/gems/activesupport-8.0.3/lib/active_support/lazy_load_hooks.rb:78:in 'block in run_load_hooks'
/home/runner/work/project_name/vendor/bundle/ruby/3.4.0/gems/activesupport-8.0.3/lib/active_support/lazy_load_hooks.rb:92:in 'execute_hook'
/home/runner/work/project_name/vendor/bundle/ruby/3.4.0/gems/activesupport-8.0.3/lib/active_support/lazy_load_hooks.rb:87:in 'with_execution_control'
/home/runner/work/project_name/vendor/bundle/ruby/3.4.0/gems/activesupport-8.0.3/lib/active_support/lazy_load_hooks.rb:99:in 'block in execute_hook'
/home/runner/work/project_name/vendor/bundle/ruby/3.4.0/gems/activesupport-8.0.3/lib/active_support/lazy_load_hooks.rb:99:in 'instance_eval'
/home/runner/work/project_name/vendor/bundle/ruby/3.4.0/gems/view_component-3.23.2/lib/view_component/engine.rb:90:in 'block (2 levels) in <class:Engine>'
/home/runner/work/project_name/vendor/bundle/ruby/3.4.0/gems/view_component-3.23.2/lib/view_component/engine.rb:90:in 'each'
/home/runner/work/project_name/vendor/bundle/ruby/3.4.0/gems/view_component-3.23.2/lib/view_component/base.rb:589:in 'compile'
/home/runner/work/project_name/vendor/bundle/ruby/3.4.0/gems/view_component-3.23.2/lib/view_component/compiler.rb:26:in 'compile'
/home/runner/work/project_name/vendor/bundle/ruby/3.4.0/gems/view_component-3.23.2/lib/view_component/compiler.rb:26:in 'synchronize'
/home/runner/work/project_name/vendor/bundle/ruby/3.4.0/gems/view_component-3.23.2/lib/view_component/compiler.rb:49:in 'block in compile'
/home/runner/work/project_name/vendor/bundle/ruby/3.4.0/gems/view_component-3.23.2/lib/view_component/compiler.rb:63:in 'define_render_template_for'
/home/runner/work/project_name/vendor/bundle/ruby/3.4.0/gems/view_component-3.23.2/lib/view_component/compiler.rb:63:in 'each'
/home/runner/work/project_name/vendor/bundle/ruby/3.4.0/gems/view_component-3.23.2/lib/view_component/compiler.rb:64:in 'block in define_render_template_for'
/home/runner/work/project_name/vendor/bundle/ruby/3.4.0/gems/view_component-3.23.2/lib/view_component/template.rb:53:in 'compile_to_component'
/home/runner/work/project_name/vendor/bundle/ruby/3.4.0/gems/view_component-3.23.2/lib/view_component/template.rb:122:in 'compiled_source'
/home/runner/work/project_name/vendor/bundle/ruby/3.4.0/gems/actionview-8.0.3/lib/action_view/template/handlers/erb.rb:30:in 'call'
/home/runner/work/project_name/vendor/bundle/ruby/3.4.0/gems/reactionview-0.1.5/lib/reactionview/template/handlers/erb.rb:11:in 'call'
/home/runner/work/project_name/vendor/bundle/ruby/3.4.0/gems/actionview-8.0.3/lib/action_view/template/handlers/erb.rb:30:in 'call'
/home/runner/work/project_name/vendor/bundle/ruby/3.4.0/gems/reactionview-0.1.5/lib/reactionview/template/handlers/herb.rb:29:in 'call'
/home/runner/work/project_name/vendor/bundle/ruby/3.4.0/gems/reactionview-0.1.5/lib/reactionview/template/handlers/herb.rb:29:in 'new'
/home/runner/work/project_name/vendor/bundle/ruby/3.4.0/gems/reactionview-0.1.5/lib/reactionview/template/handlers/herb/herb.rb:25:in 'initialize'
/home/runner/work/project_name/vendor/bundle/ruby/3.4.0/gems/herb-0.7.5-x86_64-linux-gnu/lib/herb/engine.rb:100:in 'initialize'
/home/runner/work/project_name/vendor/bundle/ruby/3.4.0/gems/herb-0.7.5-x86_64-linux-gnu/lib/herb/engine.rb:100:in 'parse'

I'm using:

gem 'herb', '~> 0.7.5'
gem 'reactionview', '~> 0.1.5'
gem 'view_component', '~> 3.23.2'
gem 'view_component-contrib', '~> 0.2.5'

disabling reactionview just works fine (config.intercept_erb = false).

I was able to reproduce this issue locally (apple silicon) with ubuntu-latest (24.04) and 22.04 and act. It works fine with the official ruby:3.4.4-bookworm image on my local machine.

I'm still working on a reproducible version for this issue

[richjdsmith]

I just ran into this as well. I am not using view component.

• reactionview (0.1.5)
• actionview (>= 7.0)
• herb (>= 0.7.5, < 1.0.0)
• Rails 8.1
• Ruby 3.4.2

I had config.intercept_erb = true and it was causing a sigfault:

Oct 25 16:14:34 hetzner-hatchbox-server retiredmortgages-server[784911]: Puma starting in single mode...
Oct 25 16:14:34 hetzner-hatchbox-server retiredmortgages-server[784911]: * Puma version: 7.1.0 ("Neon Witch")
Oct 25 16:14:34 hetzner-hatchbox-server retiredmortgages-server[784911]: * Ruby version: ruby 3.4.2 (2025-02-15 revision d2930f8e7a) +PRISM [x86_64-linux]
Oct 25 16:14:34 hetzner-hatchbox-server retiredmortgages-server[784911]: *  Min threads: 3
Oct 25 16:14:34 hetzner-hatchbox-server retiredmortgages-server[784911]: *  Max threads: 3
Oct 25 16:14:34 hetzner-hatchbox-server retiredmortgages-server[784911]: *  Environment: production
Oct 25 16:14:34 hetzner-hatchbox-server retiredmortgages-server[784911]: *          PID: 784911
Oct 25 16:14:36 hetzner-hatchbox-server retiredmortgages-server[784911]: !!! RubyLLM's legacy acts_as API is deprecated and will be removed in RubyLLM 2.0.0. Please consult the migration guide at https://rubyllm.com/upgrading-to-1-7/
Oct 25 16:14:36 hetzner-hatchbox-server retiredmortgages-server[784911]: ActsAsTaggableOn.delimiter is deprecated and will be removed from v4.0+, use  a ActsAsTaggableOn.default_parser instead
Oct 25 16:14:36 hetzner-hatchbox-server retiredmortgages-server[784911]: * Activated tcp://127.0.0.1:9060
Oct 25 16:14:36 hetzner-hatchbox-server retiredmortgages-server[784911]: Use Ctrl-C to stop
Oct 25 16:15:26 hetzner-hatchbox-server retiredmortgages-server[784911]: [5b5b01bf-7907-41b2-b5b9-60ab4225f078] Started GET "/coming_soon" for 75.156.1.72 at 2025-10-25 16:15:26 +0000
Oct 25 16:15:26 hetzner-hatchbox-server retiredmortgages-server[784911]: [5b5b01bf-7907-41b2-b5b9-60ab4225f078] Processing by PagesController#show as HTML
Oct 25 16:15:26 hetzner-hatchbox-server retiredmortgages-server[784911]: [5b5b01bf-7907-41b2-b5b9-60ab4225f078]   Parameters: {"id" => "coming_soon"}
Oct 25 16:15:26 hetzner-hatchbox-server retiredmortgages-server[784911]: /home/deploy/retiredmortgages/shared/bundle/ruby/3.4.0/gems/herb-0.7.5-x86_64-linux-gnu/lib/herb/engine.rb:100: [BUG] Segmentation fault at 0x0000000000000000
Oct 25 16:15:26 hetzner-hatchbox-server retiredmortgages-server[784911]: ruby 3.4.2 (2025-02-15 revision d2930f8e7a) +YJIT +PRISM [x86_64-linux]
Oct 25 16:15:26 hetzner-hatchbox-server retiredmortgages-server[784911]: -- Control frame information -----------------------------------------------
Oct 25 16:15:26 hetzner-hatchbox-server retiredmortgages-server[784911]: c:0125 p:---- s:0845 e:000844 CFUNC  :parse
Oct 25 16:15:26 hetzner-hatchbox-server retiredmortgages-server[784911]: c:0124 p:0520 s:0840 e:000839 METHOD /home/deploy/retiredmortgages/shared/bundle/ruby/3.4.0/gems/herb-0.7.5-x86_64-linux-gnu/lib/herb/engine.rb:100
Oct 25 16:15:26 hetzner-hatchbox-server retiredmortgages-server[784911]: c:0123 p:0113 s:0822 e:000821 METHOD /home/deploy/retiredmortgages/shared/bundle/ruby/3.4.0/gems/reactionview-0.1.5/lib/reactionview/template/handlers/herb/herb.rb: [FINISH]
Oct 25 16:15:26 hetzner-hatchbox-server retiredmortgages-server[784911]: c:0122 p:---- s:0816 e:000815 CFUNC  :new
Oct 25 16:15:26 hetzner-hatchbox-server retiredmortgages-server[784911]: c:0121 p:0088 s:0810 e:000809 METHOD /home/deploy/retiredmortgages/shared/bundle/ruby/3.4.0/gems/reactionview-0.1.5/lib/reactionview/template/handlers/herb.rb:29
Oct 25 16:15:26 hetzner-hatchbox-server retiredmortgages-server[784911]: c:0120 p:0009 s:0802 e:000801 METHOD /home/deploy/retiredmortgages/shared/bundle/ruby/3.4.0/gems/actionview-8.1.0/lib/action_view/template/handlers/erb.rb:30
Oct 25 16:15:26 hetzner-hatchbox-server retiredmortgages-server[784911]: c:0119 p:0026 s:0796 e:000795 METHOD /home/deploy/retiredmortgages/shared/bundle/ruby/3.4.0/gems/reactionview-0.1.5/lib/reactionview/template/handlers/erb.rb:11
Oct 25 16:15:26 hetzner-hatchbox-server retiredmortgages-server[784911]: c:0118 p:0009 s:0790 e:000789 METHOD /home/deploy/retiredmortgages/shared/bundle/ruby/3.4.0/gems/actionview-8.1.0/lib/action_view/template/handlers/erb.rb:30
Oct 25 16:15:26 hetzner-hatchbox-server retiredmortgages-server[784911]: c:0117 p:0018 s:0784 e:000783 METHOD /home/deploy/retiredmortgages/shared/bundle/ruby/3.4.0/gems/actionview-8.1.0/lib/action_view/template.rb:446
Oct 25 16:15:26 hetzner-hatchbox-server retiredmortgages-server[784911]: c:0116 p:0005 s:0776 e:000774 METHOD /home/deploy/retiredmortgages/shared/bundle/ruby/3.4.0/gems/actionview-8.1.0/lib/action_view/template.rb:502
Oct 25 16:15:26 hetzner-hatchbox-server retiredmortgages-server[784911]: c:0115 p:0005 s:0768 e:000767 BLOCK  /home/deploy/retiredmortgages/shared/bundle/ruby/3.4.0/gems/actionview-8.1.0/lib/action_view/template.rb:433
Oct 25 16:15:26 hetzner-hatchbox-server retiredmortgages-server[784911]: c:0114 p:0033 s:0765 e:000764 METHOD /home/deploy/retiredmortgages/shared/bundle/ruby/3.4.0/gems/activesupport-8.1.0/lib/active_support/notifications.rb:212
Oct 25 16:15:26 hetzner-hatchbox-server retiredmortgages-server[784911]: c:0113 p:0021 s:0759 e:000758 METHOD /home/deploy/retiredmortgages/shared/bundle/ruby/3.4.0/gems/actionview-8.1.0/lib/action_view/template.rb:579
Oct 25 16:15:26 hetzner-hatchbox-server retiredmortgages-server[784911]: c:0112 p:0022 s:0753 e:000752 BLOCK  /home/deploy/retiredmortgages/shared/bundle/ruby/3.4.0/gems/actionview-8.1.0/lib/action_view/template.rb:432 [FINISH]
Oct 25 16:15:26 hetzner-hatchbox-server retiredmortgages-server[784911]: c:0111 p:---- s:0749 e:000748 CFUNC  :synchronize
Oct 25 16:15:26 hetzner-hatchbox-server retiredmortgages-server[784911]: c:0110 p:0013 s:0745 e:000744 METHOD /home/deploy/retiredmortgages/shared/bundle/ruby/3.4.0/gems/actionview-8.1.0/lib/action_view/template.rb:424
Oct 25 16:15:26 hetzner-hatchbox-server retiredmortgages-server[784911]: c:0109 p:0006 s:0740 e:000739 BLOCK  /home/deploy/retiredmortgages/shared/bundle/ruby/3.4.0/gems/actionview-8.1.0/lib/action_view/template.rb:273
Oct 25 16:15:26 hetzner-hatchbox-server retiredmortgages-server[784911]: c:0108 p:0033 s:0735 e:000734 METHOD /home/deploy/retiredmortgages/shared/bundle/ruby/3.4.0/gems/activesupport-8.1.0/lib/active_support/notifications.rb:212
Oct 25 16:15:26 hetzner-hatchbox-server retiredmortgages-server[784911]: c:0107 p:0013 s:0729 e:000728 METHOD /home/deploy/retiredmortgages/shared/bundle/ruby/3.4.0/gems/actionview-8.1.0/lib/action_view/template.rb:583

[kylekeesling]

I'm seeing this as well. Everything works fine on MacOS 26 but I see the segfault when running tests on Github Actions in Linux