CI: ubuntu.yml: Add GitHub Actions ppc64le case

junaruga · junaruga · commit b437998173f1 · 2025-08-25T20:16:33.000+01:00
Note that the default configure option `./configure cppflags=-DRUBY_DEBUG` causes the following Ractor test and other tests failing. So, we don't set the option in ppc64le case. ``` $ make btest BTESTS=bootstraptest/test_ractor.rb ``` See https://bugs.ruby-lang.org/issues/21534 for details. Limit CPU number for make check to avoid failing tests due to timeout. The load average is high in The ppc64le environment. It seems the high load average causes the test failures. Limiting the CPU number suppresses the failures magically. See IBM/actionspz#38 for details.
diff --git a/.github/workflows/ubuntu.yml b/.github/workflows/ubuntu.yml
@@ -30,10 +30,7 @@ jobs:
         os:
           - ubuntu-24.04
           - ubuntu-24.04-arm
-          # FIXME Comment out ppc64le due to failing tests on GitHub Actions
-          # ppc64le
-          # https://bugs.ruby-lang.org/issues/21534
-          # - ubuntu-24.04-ppc64le
+          - ubuntu-24.04-ppc64le
           - ubuntu-24.04-s390x
         # The ppc64le/s390x runners work only in the registered repositories.
         # They don't work in forked repositories.
@@ -121,9 +118,15 @@ jobs:
         env:
           arch: ${{ matrix.arch }}
           configure: ${{ matrix.configure }}
-        run: >-
-          $SETARCH ../src/configure -C --disable-install-doc ${configure:-cppflags=-DRUBY_DEBUG}
-          ${arch:+--target=$arch-$OSTYPE --host=$arch-$OSTYPE}
+        # Don't set cppflags=-DRUBY_DEBUG on ppc64le, due to some Ractor tests
+        # failing in the case.
+        # https://bugs.ruby-lang.org/issues/21534
+        run: |
+          if [ "$(uname -m)" != "ppc64le" ]; then
+            configure="${configure:-cppflags=-DRUBY_DEBUG}"
+          fi
+          $SETARCH ../src/configure -C --disable-install-doc ${configure} \
+            ${arch:+--target=$arch-$OSTYPE --host=$arch-$OSTYPE}
 
       - run: $SETARCH make prepare-gems
         if: ${{ matrix.test_task == 'test-bundled-gems' }}
@@ -166,12 +169,19 @@ jobs:
           diff -u ../src/spec/ruby/library/etc/struct_passwd_spec.rb{.orig,} || :
         if: ${{ endsWith(matrix.os, 'ppc64le') || endsWith(matrix.os, 's390x') }}
 
+      # A temporary workaround: Limit CPU number for make check to avoid
+      # failing tests due to timeout.
+      # https://github.com/IBM/actionspz/issues/38
+      - name: Limit CPU number
+        run: echo "JOBS=-j$(nproc)" >> "$GITHUB_ENV"
+        if: ${{ endsWith(matrix.os, 'ppc64le') || endsWith(matrix.os, 's390x') }}
+
       - name: make ${{ matrix.test_task }}
         run: |
           test -n "${LAUNCHABLE_STDOUT}" && exec 1> >(tee "${LAUNCHABLE_STDOUT}")
           test -n "${LAUNCHABLE_STDERR}" && exec 2> >(tee "${LAUNCHABLE_STDERR}")
 
-          $SETARCH make -s ${{ matrix.test_task }} \
+          $SETARCH make -s $JOBS ${{ matrix.test_task }} \
           ${TESTS:+TESTS="$TESTS"} \
           ${{ !contains(matrix.test_task, 'bundle') && 'RUBYOPT=-w' || '' }}
         timeout-minutes: ${{ matrix.timeout || 40 }}
