[Bug 298417] Destroying rtw89(4) freezes the system with the INVARIANTS kernel

From: <bugzilla-noreply_at_freebsd.org>
Date: Fri, 11 Sep 2026 21:16:53 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=298417

            Bug ID: 298417
           Summary: Destroying rtw89(4) freezes the system with the
                    INVARIANTS kernel
           Product: Base System
           Version: 15.1-STABLE
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: wireless
          Assignee: wireless@FreeBSD.org
          Reporter: temcbun@gmail.com

May be related to bug #296185 (the same symptoms).  My specs could be obtained
from that bug.  I'm still running stable/15 (synced and compiled a couple of
minutes before reporting this bug).

The system is freezed when the rtw89(4) interface is destroyed using
ifconfig(8) and the kernel is compiled with the INVARIANTS option (the freeze
does not happen without INVARIANTS).

Steps to reproduce:
---------------------
$ ifconfig wlan create wlandev rtw890
wlan0
$ ifconfig wlan0 destroy
** The system freezes **
---------------------

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