https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=273509
Bug ID: 273509
Summary: TCP(4): Can not change loader tunable
net.inet.tcp.fastopen.ccache_bucket_limit via
/boot/loader.conf
Product: Base System
Version: 15.0-CURRENT
Hardware: Any
OS: Any
Status: New
Severity: Affects Some People
Priority: ---
Component: kern
Assignee: [email protected]
Reporter: [email protected]
Spot this while testing https://reviews.freebsd.org/D41525 .
As per the man page TCP(4):
> fastopen.ccache_bucket_limit
> The maximum number of entries in a client cookie
> cache bucket. The default value can be tuned with
> the TCP_FASTOPEN_CCACHE_BUCKET_LIMIT_DEFAULT
> kernel option or by setting
> net.inet.tcp.fastopen_ccache_bucket_limit in the
> loader(8).
the `net.inet.tcp.fastopen.ccache_bucket_limit` should be able to tuned the
value.
Steps to repeat:
```
# echo "net.inet.tcp.fastopen.ccache_bucket_limit=32" >> /boot/loader.conf
# reboot
....
# sysctl net.inet.tcp.fastopen.ccache_bucket_limit
16
```
Expected value:
```
# sysctl net.inet.tcp.fastopen.ccache_bucket_limit
32
```
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