LibBSD | Socket close fails when using kqueue (#41)

Aaron Nyholm (@eagleirony) gitlab at rtems.org
Tue May 27 03:58:21 UTC 2025



Aaron Nyholm created an issue: https://gitlab.rtems.org/rtems/pkg/rtems-libbsd/-/issues/41



## Summary
Sockets fail to close when using Kqueue as not all references to the IOP are released. There is a bug in the Kqueue which holds the IOP twice in `kqueue_register` and only released once during `close` if the FD passed in is a libbsd FD. This means that the socket can never be closed. 

The issue is present in all Freebsd 14 branches.

## Steps to reproduce
1. Open a socket
2. Attach Kqueue events to socket FD
3. Close Kqueue fd
4. Close socket (this will fail)

### Pre-set options

-- 
View it on GitLab: https://gitlab.rtems.org/rtems/pkg/rtems-libbsd/-/issues/41
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