Description of Changes

Fix concurrent write bug in statsmanager.

Trigger the bug without this patch:

• boot, login
• ssh into chrome-vm

sudo su

for _ in $(seq 1 1000); do
    grpcurl -cacert /etc/givc/ca-cert.pem -cert /etc/givc/cert.pem -key /etc/givc/key.pem chrome-vm:9000 stats.StatsService/GetStats > /dev/null 2>&1 &
done

Then run journalctl -f to see agent failing.

Type of Change

• New Feature
• Bug Fix
• Improvement / Refactor

Related Issues / Tickets

Checklist

• Clear summary in PR description
• Detailed and meaningful commit message(s)
• Commits are logically organized and squashed if appropriate
• Contribution guidelines followed
• Ghaf documentation updated with the commit - https://tiiuae.github.io/ghaf/
• Author has run make-checks and it passes
• All automatic GitHub Action checks pass - see actions
• Author has added reviewers and removed PR draft status

Testing Instructions

Applicable Targets

• Orin AGX aarch64
• Orin NX aarch64
• Lenovo X1 x86_64
• Dell Latitude x86_64
• System 76 x86_64

Installation Method

• Requires full re-installation
• Can be updated with nixos-rebuild ... switch
• Other:

Test Steps To Verify:

1. ...