Received-SPF: pass (google.com: best guess record for domain of linux-wireless-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
Subject: Re: [linuxwifi] Intel Centrino Ultimate N 6300 regression
To:     Nigel Sollars <nsollars@gmail.com>,
        Luciano Coelho <luciano.coelho@intel.com>
Cc:     linuxwifi@intel.com, linux-wireless@vger.kernel.org
References: <CAG6aBkWDyGDtWX7X0t-FjynkYxpdhpZsAv4Ysw3dKf+iEu+mig@mail.gmail.com>
 <941b807b02962fadaf738942baf1621738872723.camel@intel.com>
 <CAG6aBkW09YFz4asHZkhWBUenBiT3dgb7iGXBCq8KkCM09QXjLg@mail.gmail.com>
From:   Alexander Wetzel <alexander@wetzel-home.de>
Message-ID: <4e63174a-34cc-cebf-4eb9-205f0d237574@wetzel-home.de>
Date:   Wed, 21 Aug 2019 23:45:50 +0200
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101
 Thunderbird/60.8.0
MIME-Version: 1.0
In-Reply-To: <CAG6aBkW09YFz4asHZkhWBUenBiT3dgb7iGXBCq8KkCM09QXjLg@mail.gmail.com>
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

>> So I have been trying to reach out in aim to get this driver fixed as its regressed now to a total non working state.
>>
>> The card can see access points, but thats about as good as it gets as trying to connect to any networks ( either 2.4 ot 5 Ghz ) results in the following,
>>
>>    wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-22 retry=1
>>
>> ( alot of these ) which then resets connection status with a failed timeout.
>>
>> I am currently running FedoraCore 30 with the 5.2.5-200 kernel updated from 5.1.x yesterday. The firmware loaded is,
>>
>> loaded firmware version 9.221.4.1 build 25532 op_mode iwldvm
>>
>> Now with all that said, using a Linux Mint live boot from a usb device yeilds the card working fine at both 2.4 and 5ghz speeds, it connects within seconds. The kernal in this live boot is 4.15.x and uses the same firmware build as my FC install.

I'm also using a "Intel Corporation Centrino Ultimate-N 6300 (rev 3e)" 
card and it's working perfectly with 5.3.0-rc4-wt here.
(And with most wireless-testing kernels for the last years, too..)

Now there was one noteworthy bug in the last year we handled on the 
mailing list:
https://lore.kernel.org/linux-wireless/87k1rk1af5.fsf@kamboji.qca.qualcomm.com/

But then this was a null pointer and does not match to what you observe. 
(And that really should be fixed in any 5.2 kernel...)

I'm using a Gentoo ~amd64 system and wpa_supplicant more or less 
tracking git upstream and the wireless-testing kernels with the same 
firmware as you.

So whatever it is, it's not affecting me. I would suggest to try a 
vanilla 5.2 kernel and maybe also an updated wpa_supplicant version next...

Alexander