Subject: Re: Fwd: linux v4.14 causes firmware iwlwifi errors on Lenovo
 Thinkpad T440s
To: Bartosz Golaszewski <brgl@bgdev.pl>, linux-wireless@vger.kernel.org
References: <CAMRc=Mf92X2t8wjmE+xkXrA0QKY06uFeXhMY-97Ka=_UxuQbjw@mail.gmail.com>
 <CAMRc=Mf-4HnRXLxoiPrzZVjeCpfY5+Q2Ydmee0GkViejk8nzaQ@mail.gmail.com>
From: Larry Finger <Larry.Finger@lwfinger.net>
Message-ID: <3045d677-8f24-b258-0eaf-ee8dae5ecd4c@lwfinger.net> (sfid-20171113_214559_547956_5A0A33D8)
Date: Mon, 13 Nov 2017 14:45:53 -0600
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In-Reply-To: <CAMRc=Mf-4HnRXLxoiPrzZVjeCpfY5+Q2Ydmee0GkViejk8nzaQ@mail.gmail.com>
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Sender: linux-wireless-owner@vger.kernel.org

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