chore: add logging for native linux tests

Author: Scorbutics

.github/workflows/build.yml

@@ -125,6 +125,15 @@ jobs:
         env:
           LD_LIBRARY_PATH: ${{ github.workspace }}/kmp/libs/linux_x64
 
+      - name: Check for crash signals
+        if: failure()
+        run: |
+          echo "=== dmesg (last 30 lines) ==="
+          dmesg | tail -30 || true
+          echo ""
+          echo "=== Extracted assets ==="
+          find "$HOME/.cache/embedded-ruby-vm" -type f | head -50 || true
+
       - name: Package artifacts
         run: |
           mkdir -p artifacts/include

kmp/src/nativeTest/kotlin/com/scorbutics/rubyvm/RubyVMGCStressTest.kt

@@ -49,19 +49,22 @@ class RubyVMSmokeTest {
 
         try {
             // Phase 2: Execute a single script
-            println("  Enqueuing script...")
             val latch = NativeCountDownLatch(1)
             var resultCode = -1
 
             val script = RubyScript.fromContent("puts 'Hello from Ruby on Kotlin/Native!'")
+            println("  Enqueuing script...")
+            fflush(null)
+
             interpreter.enqueue(script) { exitCode ->
                 println("  Script completed with exit code: $exitCode")
                 resultCode = exitCode
                 latch.countDown()
                 script.close()
             }
 
-            println("  Waiting for script (timeout: 30s)...")
+            println("  Enqueue returned, waiting for script (timeout: 30s)...")
+            fflush(null)
             val completed = latch.await(30)
 
             assertTrue(completed, "Script did not complete within 30 seconds")