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Date:      Tue, 10 Jan 2023 09:31:18 +0000
From:      bugzilla-noreply@freebsd.org
To:        wireless@FreeBSD.org
Subject:   [Bug 268565] panic after "killall wpa_supplicant" followed by "/etc/rc.d/netif start" with rtw880
Message-ID:  <bug-268565-21060-Vm7iNSLSHo@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-268565-21060@https.bugs.freebsd.org/bugzilla/>
References:  <bug-268565-21060@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D268565

Mikhail Pchelin <misha@freebsd.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
 Attachment #239027|0                           |1
        is obsolete|                            |

--- Comment #5 from Mikhail Pchelin <misha@freebsd.org> ---
Created attachment 239374
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D239374&action=
=3Dedit
patch v3

Next attempt to fix the panic.

Thinking about it more, I must agree that fixing lsta in xmit function is
wrong.

Panic occurs while transiting from INIT state to SCAN, currently this
transition is not handled in a special way, the handler is
lkpi_sta_state_do_nada(), which is a stub. I suggest to check for lsta
existence in the new handler and allocating it, if it's not set.

INIT->SCAN also happens on boot, but in that case we also create a VAP, so =
lsta
allocation is handled in that chain, so there is no crash.

Opinions?

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