Test investigate OOM

Author: pantherman594

.github/actions/smoke-test/build.sh

@@ -91,4 +91,20 @@ docker network create -d bridge app-network
 ################################################
 echo "Building Dev Container"
 readonly ID_LABEL="test-container=${TEMPLATE_ID}"
+
+# Host memory diagnostics before devcontainer up
+echo "=== HOST memory diagnostics before devcontainer up ==="
+echo "--- Host system memory overview ---"
+free -h
+echo ""
+echo "--- Host detailed memory info ---"
+grep -E "MemTotal|MemFree|MemAvailable|Buffers|Cached|SwapTotal|SwapFree" /proc/meminfo
+echo ""
+echo "--- Host top 15 processes by memory ---"
+ps aux --sort=-%mem | head -16
+echo ""
+echo "--- Docker system info ---"
+docker system df
+echo "=== End HOST memory diagnostics ==="
+
 devcontainer up --id-label "${ID_LABEL}" --workspace-folder "${SRC_DIR}"

startupscript/post-startup.sh

@@ -79,6 +79,33 @@ ${RUN_AS_LOGIN_USER} "ln -sf '${USER_WORKBENCH_CONFIG_DIR}' '${USER_WORKBENCH_LE
 exec > >(tee -a "${POST_STARTUP_OUTPUT_FILE}")  # Append output to the file and print to terminal
 exec 2> >(tee -a "${POST_STARTUP_OUTPUT_FILE}" >&2)  # Append errors to the file and print to terminal
 
+# Memory diagnostics before package installation
+echo "=== Memory diagnostics before apt-get update ==="
+echo "--- System memory overview (NOTE: this shows HOST memory, not container limits) ---"
+free -h
+echo ""
+echo "--- Detailed memory info ---"
+grep -E "MemTotal|MemFree|MemAvailable|Buffers|Cached|SwapTotal|SwapFree" /proc/meminfo
+echo ""
+echo "--- Cgroup memory limits (actual container limits) ---"
+echo "Cgroup v2 memory.max:"
+cat /sys/fs/cgroup/memory.max 2>/dev/null || echo "not available"
+echo "Cgroup v2 memory.current:"
+cat /sys/fs/cgroup/memory.current 2>/dev/null || echo "not available"
+echo "Cgroup v2 memory.swap.max:"
+cat /sys/fs/cgroup/memory.swap.max 2>/dev/null || echo "not available"
+echo "Cgroup v1 memory.limit_in_bytes:"
+cat /sys/fs/cgroup/memory/memory.limit_in_bytes 2>/dev/null || echo "not available"
+echo "Cgroup v1 memory.usage_in_bytes:"
+cat /sys/fs/cgroup/memory/memory.usage_in_bytes 2>/dev/null || echo "not available"
+echo ""
+echo "--- Top 20 processes by memory (RSS) ---"
+ps aux --sort=-%mem | head -21
+echo ""
+echo "--- Process tree with memory ---"
+ps axo pid,ppid,comm,%mem,rss --sort=-%mem | head -30
+echo "=== End memory diagnostics ==="
+
 # The apt package index may not be clean when we run; resynchronize
 if type apk > /dev/null 2>&1; then
   apk update