Test rb_vm_rewind_cfp fix for blocking_operation_wait

Co-authored-by: Cursor <cursoragent@cursor.com>

Author: samuel-williams-shopify

.github/workflows/test-ruby-gc-bug.yaml

@@ -22,10 +22,10 @@ jobs:
           ruby bison libyaml-dev libgdbm-dev libreadline-dev libncurses5-dev \
           liburing-dev autoconf automake gcc make binutils
 
-    - name: Clone Ruby (ioquatix/ruby fix/blocking-operation-wait-exception-safety)
+    - name: Clone Ruby (with rb_vm_rewind_cfp fix)
       uses: actions/checkout@v4
       with:
-        repository: ioquatix/ruby
+        repository: samuel-williams-shopify/ruby
         ref: fix/blocking-operation-wait-exception-safety
         path: ruby-src
 
@@ -38,77 +38,13 @@ jobs:
         make -j$(nproc) && make install
         $HOME/.rubies/ruby-fix/bin/ruby --version
 
-    - name: Install gems + build io-event
+    - name: Install gems
       run: |
         export PATH=$HOME/.rubies/ruby-fix/bin:$PATH
         gem install bundler --no-document
         bundle install
-        bundle exec rake build 2>/dev/null || \
-          (cd ext && ruby extconf.rb && make)
 
     - name: Run io-event tests (capture worker_pool logs)
       run: |
         export PATH=$HOME/.rubies/ruby-fix/bin:$PATH
-        bundle exec bake test 2>&1 | tee /tmp/test-output.txt
-        echo "--- worker_pool log lines ---"
-        grep '\[worker_pool\]' /tmp/test-output.txt || echo "(no worker_pool log lines)"
-
-    - name: Upload test output
-      uses: actions/upload-artifact@v4
-      if: always()
-      with:
-        name: test-output-with-logging
-        path: /tmp/test-output.txt
-
-  verify-fix-main:
-    name: "Fix Ruby + io-event main (unmodified)"
-    runs-on: ubuntu-24.04
-
-    steps:
-    - name: Checkout io-event main
-      uses: actions/checkout@v4
-      with:
-        repository: socketry/io-event
-        ref: main
-
-    - name: Install build dependencies
-      run: |
-        sudo apt-get update -q
-        sudo apt-get install -y --no-install-recommends \
-          ruby bison libyaml-dev libgdbm-dev libreadline-dev libncurses5-dev \
-          liburing-dev autoconf automake gcc make binutils
-
-    - name: Clone Ruby (ioquatix/ruby fix/blocking-operation-wait-exception-safety)
-      uses: actions/checkout@v4
-      with:
-        repository: ioquatix/ruby
-        ref: fix/blocking-operation-wait-exception-safety
-        path: ruby-src
-
-    - name: Build + install Ruby
-      working-directory: ruby-src
-      run: |
-        ./autogen.sh
-        ./configure --prefix=$HOME/.rubies/ruby-fix --enable-shared \
-          --disable-install-doc cppflags="-DENABLE_PATH_CHECK=0"
-        make -j$(nproc) && make install
-        $HOME/.rubies/ruby-fix/bin/ruby --version
-
-    - name: Install gems + build io-event
-      run: |
-        export PATH=$HOME/.rubies/ruby-fix/bin:$PATH
-        gem install bundler --no-document
-        bundle install
-        bundle exec bake build
-
-    - name: Run io-event tests
-      run: |
-        export PATH=$HOME/.rubies/ruby-fix/bin:$PATH
-        bundle exec bake test 2>&1 | tee /tmp/test-output-main.txt
-
-    - name: Upload test output
-      uses: actions/upload-artifact@v4
-      if: always()
-      with:
-        name: test-output-main
-        path: /tmp/test-output-main.txt
+        bundle exec bake test