Return-path: Received: from mail-ot0-f178.google.com ([74.125.82.178]:44465 "EHLO mail-ot0-f178.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751350AbdKMWXF (ORCPT ); Mon, 13 Nov 2017 17:23:05 -0500 Subject: Re: Fwd: linux v4.14 causes firmware iwlwifi errors on Lenovo Thinkpad T440s To: Bartosz Golaszewski Cc: linux-wireless@vger.kernel.org, linux-kernel@vger.kernel.org, Berg , Emmanuel Grumbach , Luca Coelho References: <3045d677-8f24-b258-0eaf-ee8dae5ecd4c@lwfinger.net> From: Larry Finger Message-ID: <10da37f3-a018-7568-49a8-3a8ed86ef64c@lwfinger.net> (sfid-20171113_232314_911359_B9E550C5) Date: Mon, 13 Nov 2017 16:23:03 -0600 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Sender: linux-wireless-owner@vger.kernel.org List-ID: On 11/13/2017 03:30 PM, Bartosz Golaszewski wrote: > 2017-11-13 21:45 GMT+01:00 Larry Finger : >> On 11/13/2017 02:22 PM, Bartosz Golaszewski wrote: >>> >>> Forwarding here too as I messed up the address the last time. >>> -- >>> >>> Hi, >>> >>> I noticed my wireless interface can't get up with linux v4.14 and the >>> kernel log is flooded with firmware errors: >>> >>> iwlwifi 0000:03:00.0: Firmware error during reconfiguration - reprobe! >>> iwlwifi 0000:03:00.0: FW error in SYNC CMD DQA_ENABLE_CMD >>> >>> and >>> >>> ieee80211 phy63: Hardware restart was requested. >>> >>> The wireless controller is: Intel Corporation Wireless 7260 (rev 83) >>> Firmware used is: iwlwifi-7260-17 >>> >>> Everything works fine with v4.13.12. >>> >>> I didn't have time today to bisect for the offending commit. Full log >>> uploaded[1]. >>> >>> Best regards, >>> Bartosz Golaszewski >>> >>> [1] https://pastebin.com/jksqxvS6 >> >> >> Your log shows "iwlwifi 0000:03:00.0: loaded firmware version 17.228510.0 >> op_mode iwlmvm" >> >> Mine, where the 7260 works, shows "iwlwifi 0000:04:00.0: loaded firmware >> version 17.459231.0 op_mode iwlmvm". >> >> It seems as if you need newer firmware. A detailed file listing shows >> "-rw-r--r-- 1 root root 1049340 Oct 9 12:03 >> /lib/firmware/iwlwifi-7260-17.ucode". That date is likely when I installed >> the updated kernel firmware package from my distro. The md5sum for the file >> is 73a217f55c47d3a70bb5dbbe1d676423. >> >> Larry >> > > Ok so it seems the version in linux-firmware is outdated. The file > you're using is available on github[1] and fixed the issue for me. > > Thanks! > Bartosz Golaszewski > > [1] https://github.com/OpenELEC/iwlwifi-firmware Interesting. Using md5sum of the git repo for linux-firmware gets 73a217f55c47d3a70bb5dbbe1d676423 iwlwifi-7260-17.ucode. That is the file I'm using. Larry