please show the key code and package and golang version. 在 2019年2月18日星期一 UTC+8上午9:11:48，rlwes...@gmail.com写道： > > I have an application running in a FreeBSD jail that opens TCP connections > to other servers. When I try to shutdown the jail shortly after opening a > connection, it fails to unmount the filesystem with "device busy". I've > tried all manner of sysctl options and server.SetKeepalivesEnabled(false) > and similar functions, but nothing has any effect. I think it might be > because there are a lot of places in the code this can happen and some of > the connections might be getting opened by code in other repos I'm > importing. Is there an easy way to just close all open TCP connections? >
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