xamxam/docs/IMMEDIATE_FIX.md

IMMEDIATE FIX - VM Crash Prevention

TL;DR

Root Cause: Serial console service (serial-getty@ttyS0) crashed 421,491 times over 50 days, exhausting memory.

NOT caused by: Your posterg website/application (it's innocent!)

The Fix (5 minutes, zero downtime)

SSH into the server and run:

ssh theophile@posterg.erg.be -p 3274

# Disable the broken serial console service
sudo systemctl stop serial-getty@ttyS0.service
sudo systemctl disable serial-getty@ttyS0.service
sudo systemctl mask serial-getty@ttyS0.service

# Verify it's masked
sudo systemctl status serial-getty@ttyS0.service
# Should show: "Loaded: masked"

# Check system health
free -h
systemctl --failed

Done!

The VM will no longer crash from this issue. See VM_Crash_Analysis_FINAL.md for complete details.

Bonus: Clean Up the Database Schema Errors

While you're there, fix the post-reboot database issues:

cd /var/www/posterg

# Check which migrations need to run
ls -la storage/migrations/

# If migrations exist, apply them manually or:
# Review and fix the missing 'tags' table and 'ts.role' column
sqlite3 storage/posterg.db "SELECT name FROM sqlite_master WHERE type='table';"

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Summary Stats:

• Serial getty crashes: 1,264,488
• Restart counter at OOM: 421,491
• Days until OOM: ~50 days
• Your application's fault: 0% ✅