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Message-ID: <dae4bb032ad8b0c9fa6547de5e869e51f9f6e766.camel@sipsolutions.net>
Subject: Re: [REGRESSION] 6.7 broke wifi "AP is in CSA process, reject auth"
From: Johannes Berg <johannes@sipsolutions.net>
To: coldolt <andypalmadi@gmail.com>, ayala.beker@intel.com, 
	linux-wireless@vger.kernel.org, regressions@lists.linux.dev
Date: Mon, 15 Jan 2024 21:00:29 +0100
In-Reply-To: <CAJvGw+DQhBk_mHXeu6RTOds5iramMW2FbMB01VbKRA4YbHHDTA@mail.gmail.com>
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	<CAJvGw+DQhBk_mHXeu6RTOds5iramMW2FbMB01VbKRA4YbHHDTA@mail.gmail.com>
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On Mon, 2024-01-15 at 16:39 +0200, coldolt wrote:
> I'm on Arch linux, updated the kernel from 6.6.10 -> 6.7.
>=20
> Now it doesn't connect to my 5GHz wifi, to 2.4GHz it still connects.
> Also the earlier kernel version still works. Output from "sudo dmesg |
> grep -i wlp2s0":
>=20
> > [    6.049600] iwlwifi 0000:02:00.0 wlp2s0: renamed from wlan0
> > [  131.095861] wlp2s0: AP is in CSA process, reject auth
> > [  132.143170] wlp2s0: AP is in CSA process, reject auth
> > [  133.599906] wlp2s0: AP is in CSA process, reject auth
> > [  135.549325] wlp2s0: AP is in CSA process, reject auth
> > [  145.510438] wlp2s0: AP is in CSA process, reject auth
>=20
> I notice that the commit c09c4f31998bac, which was added to kernel
> 6.7, introduced rejecting a connection with that error message "AP is
> in CSA process, reject auth".
>=20
> My guess is that commit is the cause of the regression.

I guess? But that was quite intentional - we don't handle connecting
well while the AP is switching channels.

This really shouldn't persist for longer than a few seconds though, even
the 15 seconds sounds pretty excessive.

Could you show the output of

$ sudo iw wlp2s0 scan -u

for this AP?

johannes