I get the same issue on "CentOS Linux 7.9.2009 (Core)". My Spring (embedded tomcat application) throws the following message.
2021-12-25 08:38:31,250 ERROR | https-jsse-nio-18443-Acceptor | org.apache.tomcat.util.net.Acceptor | Socket accept failed java.io.IOException: Duplicate accept detected. This is a known OS bug. Please consider reporting that you are affected: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1924298 at org.apache.tomcat.util.net.NioEndpoint.serverSocketAccept(NioEndpoint.java:545) at org.apache.tomcat.util.net.NioEndpoint.serverSocketAccept(NioEndpoint.java:78) at org.apache.tomcat.util.net.Acceptor.run(Acceptor.java:129) at java.base/java.lang.Thread.run(Thread.java:833) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1924298 Title: accept returns duplicate endpoints under load To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1924298/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs