---

BPF环缓冲区无效参数 (-22)？

我想使用eBPF的最新地图，BPF_MAP_TYPE_RINGBUF，但是我在网上找不到很多关于如何使用它的信息，所以我只是在这里做一些反复试验。我定义和使用它是这样的:

.htaccess .net .net-core 2d 3d 3d-printing abstract-syntax-tree actions-on-google actionscript-3 activemq acumatica adobe-xd aframe ag-grid air airflow ajax akka alexa algorithm alignment allure amadeus amazon-cognito amazon-deequ amazon-dynamodb amazon-ec2 amazon-redshift amazon-s3 amazon-sqs amazon-web-services amcharts amcharts4 amp-html anaconda android android-activity android-fragments android-jetpack-compose android-layout android-management-api android-ndk android-studio android-x86 android-youtube-api angular angular-cli angular-cli-v6 angular-material angular-material2 angular5 angularjs animation annotations ansible ant antd antlr anylogic anypoint-studio apache apache-camel apache-commons-dbcp apache-drill apache-flex apache-flink apache-kafka apache-kafka-connect apache-nifi apache-spark apache-superset apache2 apex api appdelegate apple-sign-in applepay applescript architecture arduino arkit arm arrays artifactory artificial-intelligence asp.net asp.net-core asp.net-core-mvc asp.net-identity asp.net-mvc asp.net-mvc-3 asp.net-mvc-4 asp.net-web-api assembly asynchronous atlassian-sourcetree audio authentication autocomplete autodesk-forge automated-tests automation automator avro awk aws-kms aws-lambda axis azure azure-active-directory azure-ad-b2c azure-cosmosdb azure-data-factory azure-devops azure-devops-rest-api azure-functions azure-keyvault azure-managed-identity azure-maps