From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.4 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id BBD96C3A5A1 for ; Thu, 22 Aug 2019 22:50:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6A9AB205ED for ; Thu, 22 Aug 2019 22:50:57 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=cantab.net header.i=@cantab.net header.b="fcZQ5zvh" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2390762AbfHVWu4 (ORCPT ); Thu, 22 Aug 2019 18:50:56 -0400 Received: from mta02.prd.rdg.aluminati.org ([94.76.243.215]:35314 "EHLO mta02.prd.rdg.aluminati.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2389012AbfHVWu4 (ORCPT ); Thu, 22 Aug 2019 18:50:56 -0400 X-Greylist: delayed 516 seconds by postgrey-1.27 at vger.kernel.org; Thu, 22 Aug 2019 18:50:55 EDT Received: from mta02.prd.rdg.aluminati.org (localhost [127.0.0.1]) by mta02.prd.rdg.aluminati.org (Postfix) with ESMTP id 550E61FEF6 for ; Thu, 22 Aug 2019 23:42:18 +0100 (BST) Received: from localhost (localhost [127.0.0.1]) by mta02.prd.rdg.aluminati.org (Postfix) with ESMTP id 4C6BABB for ; Thu, 22 Aug 2019 23:42:18 +0100 (BST) Authentication-Results: mta02.prd.rdg.aluminati.org (amavisd-new); dkim=pass (2048-bit key) reason="pass (just generated, assumed good)" header.d=cantab.net DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cantab.net; h= content-transfer-encoding:content-language:mime-version :user-agent:date:date:message-id:from:from:in-reply-to :references:subject:subject:received:received; s=dkim; t= 1566513737; bh=rW5DhwGy9dkDoEedIWAUDjv2U9JxW4v6EkSeu/KGfSQ=; b=f cZQ5zvhJWIlQIuoAIXTa9FSzpp2JQ2A5PhdE5q2pNhro/l11xuBivSQJU72JSUs2 5Uqv4Ix7ejIxZBO2+ptmbVx+z7ZFjxrqkbuec9WhUKi3xpZoH6bFyOa3wocgxQ9c kyXQ3oD/6wrd0nrgJIrO5UvGOqQ7WYDaxkEGFwD/+6lxJmfr36E6ffZr+MoroxeQ nE6qML0xpxpd5lMzjf0n48Zd2UdIcEI0PvUsrbe0qFSlekxSSryFD4EmKOMZLjCy YtNZNFSlitwYB8p8kYRGVPvae1m21GyVRTzHvInVT5NR4mV1HHdG99g0Y6+tVjzs 9u1lerqs2M1timgp3Q3Iw== X-Quarantine-ID: X-Virus-Scanned: Debian amavisd-new at mta02.prd.rdg.aluminati.org Received: from mta.aluminati.local ([127.0.0.1]) by localhost (mta02.prd.rdg.aluminati.org [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id meNmWux9vZIu for ; Thu, 22 Aug 2019 23:42:17 +0100 (BST) Received: from [192.168.1.31] (78-58-236-126.static.zebra.lt [78.58.236.126]) by mta02.prd.rdg.aluminati.org (Postfix) with ESMTPSA id 4E7EB3E for ; Thu, 22 Aug 2019 23:42:16 +0100 (BST) Subject: Re: [linuxwifi] Intel Centrino Ultimate N 6300 regression To: linux-wireless@vger.kernel.org References: In-Reply-To: From: =?UTF-8?Q?Antanas_Ur=c5=a1ulis?= Message-ID: <90e4da8a-10a6-2e2d-c3de-27f21e644f3e@cantab.net> Date: Thu, 22 Aug 2019 23:42:16 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org I was investigating what appears to be the same issue on my T420 Thinkpad and at least found a workaround (and perhaps a clue for where the bug could lie). On 22/08/2019 01:12, Nigel Sollars wrote: > Interesting to be sure, so here are the versions of kernel and wpa_supplicant, > > 5.2.9-200.fc30.x86_64 > wpa_supplicant-2.8-2.fc30.x86_64 Are you using NetworkManager by chance? I stumbled across a Red Hat bug report[0] involving 'CTRL-EVENT-SCAN-FAILED ret=-22' and the proprietary broadcom driver. A comment there[1] describes a workaround for their issue, by making NetworkManager not randomise the MAC address during access point scans. Adopting that workaround also works for my Centrino Ultimate-N 6300 (rev 3e). Create a config file /etc/NetworkManager/conf.d/iwl.conf with contents: [device] match-device=driver:iwlwifi wifi.scan-rand-mac-address=no Then restart NetworkManager. Alternatively, downgrading wpa_supplicant (to 2.7-r3 on Gentoo ~amd64) also works for me. - Antanas [0] https://bugzilla.redhat.com/show_bug.cgi?id=1703745 [1] https://bugzilla.redhat.com/show_bug.cgi?id=1703745#c56