Ubuntu 14.04 LTS – out of memory kills processes during builds

📖 ~1 min read

Table of contents

1. Symptom & Impact
2. Environment & Reproduction
3. Root Cause Analysis
4. Quick Triage
5. Step-by-Step Diagnosis
6. Solution – Primary Fix
7. Solution – Alternative Approaches
8. Verification & Acceptance Criteria
9. Rollback Plan
10. Prevention & Hardening
11. Related Errors & Cross-Refs
12. References & Further Reading

Symptom & Impact

Compilation or runtime jobs terminate abruptly as OOM killer reclaims memory.

Environment & Reproduction

Triggered by parallel builds or memory-heavy workloads on undersized hosts.

Root Cause Analysis

Combined memory demand exceeds physical RAM and swap safety margins.

Quick Triage

Confirm OOM events in kernel logs and identify top memory consumers.

Step-by-Step Diagnosis

Collect process memory profiles and build parallelism settings.

Solution – Primary Fix

Reduce concurrency, add swap or RAM, and optimize workload memory usage.

Solution – Alternative Approaches

Offload heavy builds to dedicated CI workers with larger memory capacity.

Verification & Acceptance Criteria

Builds complete successfully with no OOM kill events in logs.

Rollback Plan

Revert memory tuning parameters if performance side effects are unacceptable.

Prevention & Hardening

Set memory alerts and cap build parallelism based on host sizing policy.

Related Errors & Cross-Refs

Related issues include killed process entries and abrupt compiler termination.

Related tutorial: View the step-by-step tutorial for Ubuntu 14.04 LTS.

View all Ubuntu 14.04 LTS tutorials on the Tutorials Hub →

Browse all common problems & solutions on the Tutorials Hub.

References & Further Reading

Review Linux OOM behavior and Ubuntu resource tuning guidance.