diff --git a/.github/workflows/reusable-test.yml b/.github/workflows/reusable-test.yml
index 2127355f40..8d4a4a8d33 100644
--- a/.github/workflows/reusable-test.yml
+++ b/.github/workflows/reusable-test.yml
@@ -100,3 +100,12 @@ jobs:
               "$test_file"
             fi
           done
+
+      - name: Debug failure (Linux)
+        if: ${{ failure() && runner.os == 'Linux' && inputs.run_tests }}
+        shell: bash
+        run: |
+          echo "IPv4 local port range:"
+          cat /proc/sys/net/ipv4/ip_local_port_range
+          echo "Netstat:"
+          netstat -an