[Bug 283903] rtw88: possible skb leak

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=283903

--- Comment #22 from Bjoern A. Zeeb <bz@FreeBSD.org> ---
(In reply to Guillaume Outters from comment #21)

The 16M ring + 1rsvd page would match as a start.

Thanks a lot for the detailed answer.

I just realized why we do see the 4K increases but I did not see any 4k
allocations.  contigmalloc in linux_skb due to the memory limit as-is in the
tree.  There are changes to come to change that for certain behavior.

Can you also keep an eye on the mbuf-tag numbers (as that'll tells RX vs. TX
apart).  On main I use (to alos get the header; stable/14 might still be
different):   vmstat -m | egrep -e '(Use|lkpi|mbuf)

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