https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=286059

--- Comment #1 from Edward Tomasz Napierala <tr...@freebsd.org> ---
Probably unrelated, but there's also this LOR reported upon boot; it doesn't
appear to be breaking anything though?

lock order reversal:
 1st 0xfffffe00fbb66058 iwx0_tx_lock (iwx0_tx_lock, sleep mutex) @
/usr/home/trasz/git/freebsd-src/sys/net80211/ieee80211_output.c:1038
 2nd 0xfffffe00fbbed3b0 iwx0 (network driver, sleep mutex) @
/usr/home/trasz/git/freebsd-src/sys/dev/iwx/if_iwx.c:10777
lock order iwx0_tx_lock -> network driver attempted at:
#0 0xffffffff80bce791 at witness_checkorder+0xbe1
#1 0xffffffff80b312b1 at __mtx_lock_flags+0x91
#2 0xffffffff83d3c896 at iwx_raw_xmit+0x36
#3 0xffffffff80d0b26b at ieee80211_mgmt_output+0x1eb
#4 0xffffffff80d0d0fa at ieee80211_send_mgmt+0xc0a
#5 0xffffffff80d19ff4 at sta_newstate+0x5e4
#6 0xffffffff83d40e2d at iwx_newstate+0xa4d
#7 0xffffffff80d112cc at ieee80211_newstate_cb+0x29c
#8 0xffffffff80bc0d12 at taskqueue_run_locked+0x1c2
#9 0xffffffff80bc1bd3 at taskqueue_thread_loop+0xd3
#10 0xffffffff80b0abd2 at fork_exit+0x82
#11 0xffffffff81069afe at fork_trampoline+0xe

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