Received-SPF: pass (google.com: domain of linux-wireless-owner@vger.kernel.org designates 23.128.96.33 as permitted sender) client-ip=23.128.96.33;
Date:   Thu, 21 Sep 2023 18:21:55 +0200
From:   Uwe =?utf-8?Q?Kleine-K=C3=B6nig?= <u.kleine-koenig@pengutronix.de>
To:     "Greenman, Gregory" <gregory.greenman@intel.com>
Cc:     "linux-wireless@vger.kernel.org" <linux-wireless@vger.kernel.org>,
        "mh+debian-user-german@zugschlus.de" 
        <mh+debian-user-german@zugschlus.de>,
        "exp-311223@news.muster.net" <exp-311223@news.muster.net>,
        "tychokirchner@gmail.com" <tychokirchner@gmail.com>,
        "rene@debian.org" <rene@debian.org>,
        "Juergen.bausa@online.de" <Juergen.bausa@online.de>,
        "sebastian.suchanek@gmx.de" <sebastian.suchanek@gmx.de>
Subject: Re: iwlwifi in German ICE4 trains
Message-ID: <20230921162155.peopg2ylibkwrd2p@pengutronix.de>
References: <20230423085510.xpmcuzfhzqa4dyhs@pengutronix.de>
 <c0153e5dd0459d351807002df7cef9eb30b04e86.camel@intel.com>
 <20230424042135.4xwtbobs2p5wmnjk@pengutronix.de>
MIME-Version: 1.0
Content-Type: multipart/signed; micalg=pgp-sha512;
        protocol="application/pgp-signature"; boundary="lraodpvvtkmojwvh"
Content-Disposition: inline
In-Reply-To: <20230424042135.4xwtbobs2p5wmnjk@pengutronix.de>
Precedence: bulk


--lraodpvvtkmojwvh
Content-Type: text/plain; charset=iso-8859-1
Content-Disposition: inline
Content-Transfer-Encoding: quoted-printable

Hello Gregory,

On Mon, Apr 24, 2023 at 06:21:38AM +0200, Uwe Kleine-K=F6nig wrote:
> first of all: thanks for your prompt response.
>=20
> On Sun, Apr 23, 2023 at 01:06:45PM +0000, Greenman, Gregory wrote:
> > Based on the log, I can understand that it had successfully connected t=
o the AP
> > (supplicant management interface state: associating -> completed);
> > then there're some DHCP errors and eventually the AP sends a deauth.
> > It's hard to say what can cause it, but if you'll be able to reproduce
> > the issue, it'd be great if you could collect a trace-cmd dump with
> > this command:
> > sudo trace-cmd record -e iwlwifi -e mac80211 -e cfg80211 -e iwlwifi_msg
>=20
> Done, see https://www.kleine-koenig.org/tmp/20230424-trace.dat for the
> resulting trace.dat file.
>=20
> > It'll be also helpfull if you'll be able to say which specific
> > modprobe option fixes the issue.
>=20
> The relevant one is
> 	options iwlwifi 11n_disable=3D1

I wonder if there is something I can do, to fix this problem. Did you
look into it? Is there something I could do to help you understand the
actual problem?

Best regards
Uwe

--=20
Pengutronix e.K.                           | Uwe Kleine-K=F6nig            |
Industrial Linux Solutions                 | https://www.pengutronix.de/ |

--lraodpvvtkmojwvh
Content-Type: application/pgp-signature; name="signature.asc"

-----BEGIN PGP SIGNATURE-----

iQEzBAABCgAdFiEEP4GsaTp6HlmJrf7Tj4D7WH0S/k4FAmUMbaMACgkQj4D7WH0S
/k41Twf/RR8/5BNQMEyVLceL6/D8I+InbKf1Z7jT5ZWSiAkxIC79EStJr8V544U+
/KqveCweV4qGSFzpb2pCE3+eBurZM6H5Wf4BEAJDVPKrX3n7wdfRMm7Pz3hN46HT
IRI5WUl+8UQDtTL1o0oaeW5GRvFY2bgOB26BilSw7mWZrlQe5Y5loAqSfnUS2Q3x
IaUudRFF2Hq86C0jT2nGP5hA/s2HfSELgZt0jO4q/clIFatKVgpvOcC355YdJK5k
b3NMvf6T5i1BBnN4olsfctXayNRe3hpG8KYJ2WCy6qkOgX4iPEWwZZm50WTiEvn5
RwCOLA5IyigMNTU2NtE4eMlS+sowdw==
=GcRQ
-----END PGP SIGNATURE-----

--lraodpvvtkmojwvh--