CI: enable and collect core dumps in tests

Signed-off-by: Sven Anderson <sven@redhat.com>

.github/workflows/main.yml

@@ -76,18 +76,23 @@ jobs:
           go_version: ${{ needs.go-versions.outputs.unstable }}
     steps:
     - uses: actions/checkout@v4
+    - name: Set cores to get stored as "core"
+      run:  sudo bash -c 'echo "core" > /proc/sys/kernel/core_pattern'
     - name: Run tests
       run: make test-containers-test "CEPH_VERSION=${{ matrix.ceph_version }}" "GO_VERSION=${{ matrix.go_version }}" "RESULTS_DIR=$PWD/_results"
     - name: Clean up test containers
+      if: always()
       run: make test-containers-clean "CEPH_VERSION=${{ matrix.ceph_version }}"
     - name: Archive test results
+      if: always()
       uses: actions/upload-artifact@v3
       with:
         name: "go-ceph-results-${{ matrix.ceph_version }}-${{ matrix.go_version }}"
         path: |
           _results/
         retention-days: 30
     - name: Check API Versions and Aging
+      if: always()
       run: |
         if [ -f _results/implements.json ]; then
           ./contrib/apiage.py

entrypoint.sh

@@ -257,9 +257,23 @@ test_pkg() {
         testargs+=("-memprofile" "${pkg}.mem.out")
     fi
 
-    show go test -v "${testargs[@]}" "./${pkg}"
+    ulimit -c unlimited
+    go test -c -v "${testargs[@]}" "./${pkg}"
+    show "./${pkg}.test"
     ret=$(($?+ret))
-    grep -v "^mode: count" "${pkg}.cover.out" >> "cover.out"
+    if ls core.* >/dev/null 2>&1; then
+        echo "Found coredump"
+        sleep 5
+        mv core.* "${pkg}.core"
+        chmod 644 "${pkg}.core"
+        echo "set auto-load safe-path /" >>/root/.gdbinit
+        gdb "${pkg}.test" "${pkg}.core" -ex bt -ex q | cat
+        mkdir -p "${RESULTS_DIR}"
+        mv "${pkg}.test" "${pkg}.core" "${RESULTS_DIR}"
+    fi
+    if [[ -x "${pkg}.cover.out" ]] ; then
+        grep -v "^mode: count" "${pkg}.cover.out" >> "cover.out"
+    fi
     return ${ret}
 }
 

testing/containers/ceph/Dockerfile

@@ -16,7 +16,8 @@ RUN true && \
     yum install -y \
     git wget curl make \
     /usr/bin/cc /usr/bin/c++ \
-    "libcephfs-devel-${cv}" "librados-devel-${cv}" "librbd-devel-${cv}" && \
+    "libcephfs-devel-${cv}" "librados-devel-${cv}" "librbd-devel-${cv}" \
+    gdb librados2-debuginfo && \
     yum clean all && \
     true