Add my environment, CentOS 7.8 ------------------ 原始邮件 ------------------ 发件人: "FreeRadius users mailing list" <freeradius-users@lists.freeradius.org>; 发送时间: 2021年9月18日(星期六) 上午10:23 收件人: "Alan DeKok"<aland@deployingradius.com>;"FreeRadius users mailing list"<freeradius-users@lists.freeradius.org>; 抄送: "老咪"<93327349@qq.com>; 主题: reply: The problem when I run freeRadius server 4.0 in master: Failed adding new socket to network event loop: Failed inserting filters for FD 15: EFAULT: Bad address Dear Alan, Thanks for your kindly remind. However, we need use EAP AKA authentication, but 3.X version don't support it, so I choose the master branch, I download the code in 2021/9/16. About the error from libkqueue, actually when I executed the configure command, it shows I need to install libkqueue first, but when I try to install libkqueue, it shows I&nbsp; need to install rpmlib(SetVersion) first, but I can't find the rpmlib(SetVersion) package in the internet. So I install the libkqueue 2.0.1 devel without rpmlib(SetVersion) by rpm -i --force --nodeps, I think this is the true cause. How can I find the&nbsp;rpmlib(SetVersion) package or code? could you help me, thank you very much. The installation info like this: [root@localhost ~]# rpm -qa|grep libkqueue libkqueue-2.0.1-alt5.x86_64 libkqueue-devel-2.0.1-alt5.x86_64 [root@localhost ~]# rpm -qa|grep rpmlib kobo-rpmlib-0.6.0-2.el7.noarch ------------------&nbsp;原始邮件&nbsp;------------------ 发件人: "Alan DeKok" <aland@deployingradius.com&gt;; 发送时间:&nbsp;2021年9月17日(星期五) 晚上7:47 收件人:&nbsp;"FreeRadius users mailing list"<freeradius-users@lists.freeradius.org&gt;; 抄送:&nbsp;"老咪"<93327349@qq.com&gt;; 主题:&nbsp;Re: The problem when I run freeRadius server 4.0 in master: Failed adding new socket to network event loop: Failed inserting filters for FD 15: EFAULT: Bad address On Sep 17, 2021, at 5:46 AM, 老咪 via Freeradius-Users <freeradius-users@lists.freeradius.org&gt; wrote: &gt; I download the newest code in github, master branch.After I fixed some small bugs, run the freeRadius&amp;nbsp; server 4.0 by radiusd -X &gt; It show like this: &nbsp; We don't recommend that people run the "master" branch.&nbsp;&nbsp; It's still alpha, and hasn't had an official release.&nbsp; It may or may not work, depending on the day. &gt; ... ... &gt; Scheduler created in single-threaded mode &gt; #### Opening listener interfaces #### &gt; Ready to process requests &gt; Network - Failed adding new socket to network event loop: Failed inserting filters for FD 15: EFAULT: Bad address &gt; Network - Failed adding new socket to network event loop: Failed inserting filters for FD 16: EFAULT: Bad address &gt; Network - Failed adding new socket to network event loop: Failed inserting filters for FD 17: EFAULT: Bad address &gt; Network - Failed adding new socket to network event loop: Failed inserting filters for FD 18: EFAULT: Bad address &nbsp; That's an error from libkeueue.&nbsp; You're probably running a very old version, because that's what most distributions ship.&nbsp; We've put a lot of fixes into libkqueue, and the latest version from GitHub should work a lot better. &nbsp; Alan DeKok. - List info/subscribe/unsubscribe? See http://www.freeradius.org/list/users.html - List info/subscribe/unsubscribe? See http://www.freeradius.org/list/users.html