Re: Fwd: linux v4.14 causes firmware iwlwifi errors on Lenovo Thinkpad T440s

[Larry Finger]

On 11/13/2017 03:30 PM, Bartosz Golaszewski wrote:
> 2017-11-13 21:45 GMT+01:00 Larry Finger <Larry.Finger@xxxxxxxxxxxx>:
> > 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 Ok so it seems the version in linux-firmware is outdated.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