🟠 High   ⏱ 5–30 min  Last verified: 19 May 2026
Affected versions: RHEL 10.0 RHEL 10.1

📖 ~1 min read

Table of contents
  1. Problem Summary
  2. Symptoms
  3. Diagnostics
  4. Root Cause
  5. Primary Fix
  6. Verification
  7. Prevention
  8. Rollback
  9. Automation
  10. Command Reference
  11. Escalation
  12. Related Notes

Problem Summary

Kernel audit queue overflows causing dropped audit events.

Symptoms

Messages show backlog limit exceeded in dmesg/journal.

Diagnostics

Run auditctl -s and review /etc/audit/auditd.conf and rules.

Root Cause

Too many broad audit rules or insufficient queue parameters.

Primary Fix

Increase backlog settings and optimize high-volume rules.

Still having issues? Our IT Solutions & Services team can diagnose and resolve this for you. Get in touch for a free consultation.

Illustrative mockup for rhel-10 — rhel10-b02-p40-1
Illustrative mockup — Progressive Robot — Illustrative mockup — Progressive Robot

Verification

Sustain workload test and confirm no dropped-event warnings.

Illustrative mockup for rhel-10 — rhel10-b02-p40-2
Illustrative mockup — Progressive Robot — Illustrative mockup — Progressive Robot

Prevention

Regularly prune rules and benchmark audit impact.

Rollback

Restore prior audit rules if compliance profile regresses.

Automation

Deploy audit rule profiles per role to reduce noise.

Command Reference

auditctl -s; augenrules –load; systemctl restart auditd

Escalation

Provide rule set, throughput metrics, and kernel messages.

SIEM forwarding delays can amplify local queue pressure.

Related tutorial: View the step-by-step tutorial for rhel-10.

View all rhel-10 tutorials on the Tutorials Hub →

Browse all common problems & solutions on the Tutorials Hub.

Need Expert Help?

If you cannot resolve this yourself, our team offers hands-on Server Management, Managed IT Services, and flexible Support Plans. Contact us today — we respond within one business day.