[Bug 283426] panic in sbappendaddr_locked()

From: <bugzilla-noreply_at_freebsd.org>
Date: Mon, 17 Mar 2025 17:05:32 UTC 
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=283426

--- Comment #5 from Gleb Smirnoff <glebius@FreeBSD.org> ---
There is only cosmetic difference between 14.1 and 14.2 in sys/net80211
and there is no difference in the iwm(4) driver.  So it is either not
a regression, or if it is a regression, then it is not exactly clear
which exact kernel module is regressed, could be mbuf allocator KPI.

Robin, can you please lookup in your core file in the iwm_handle_rxb()
does the original mbuf (pointer 0xfffff80034366100) has M_PKTHDR flag
set?

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