stdout P followed my infinite loop of "\\\\\\\\\" in cloudwatch log stream for fluentd

[jack1234-cloud]

Describe the bug

stdout P followed my infinite loop of "\\\\" in cloudwatch log stream for fluentd - I installed fluentd with container insights on an eks cluster. One out of the 4 fluentd pods has racked up over 10TB of data in 2 weeks. The other 3 pods are working as expected. The error that accounts for the majority of this data is shown in the log as stdout P followed my loads of \\\

To Reproduce

curl https://raw.githubusercontent.com/aws-samples/amazon-cloudwatch-container-insights/latest/k8s-deployment-manifest-templates/deployment-mode/daemonset/container-insights-monitoring/quickstart/cwagent-fluentd-quickstart-enhanced.yaml | sed "s/{{cluster_name}}/cluster-name/;s/{{region_name}}/cluster-region/" | kubectl apply -f -

Expected behavior

to have same amount of data roughly for other fluentd pods - other pods processed about 1-2GB

Your Environment

- Fluentd version: fluentd 1.10.3
- TD Agent version:
- Operating system: amazon-linux-2
- Kernel version:

Your Configuration

curl https://raw.githubusercontent.com/aws-samples/amazon-cloudwatch-container-insights/latest/k8s-deployment-manifest-templates/deployment-mode/daemonset/container-insights-monitoring/quickstart/cwagent-fluentd-quickstart-enhanced.yaml | sed "s/{{cluster_name}}/cluster-name/;s/{{region_name}}/cluster-region/" | kubectl apply -f -

Your Error Log

log: date:time.xxxx stdout P \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\..ect

Additional context

No response

[daipom]

Thanks for your report!
It appears that CRI outputs this log.

https://github.com/kubernetes/design-proposals-archive/blob/main/node/kubelet-cri-logging.md

It appears that CRI picked up the standard output in the container.
But is this really Fluentd's standard output?
I can't figure out what it is that produces this standard output.