linux-kernel - PROBLEM: 5.3.0-rc* causes iwlwifi failure

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Message-ID: <20190817041258.GA1641@chirva-slack.chirva-slack>
Date:   Sat, 17 Aug 2019 00:12:58 -0400
From:   Stuart Little <achirvasub@...il.com>
To:     Johannes Berg <johannes.berg@...el.com>,
        Emmanuel Grumbach <emmanuel.grumbach@...el.com>,
        Luca Coelho <luciano.coelho@...el.com>
Cc:     kernel list <linux-kernel@...r.kernel.org>,
        Intel Linux Wireless <linuxwifi@...el.com>,
        linux-wireless@...r.kernel.org
Subject: PROBLEM: 5.3.0-rc* causes iwlwifi failure

I am on an Intel(R) Core(TM) i7-7500U CPU @ 2.70GHz running Linux x86_64 (Slackware), with a custom-compiled 5.3.0-rc4 (.config attached).

I am using the Intel wifi adapter on this machine:

02:00.0 Network controller: Intel Corporation Device 24fb (rev 10)

with the iwlwifi driver. I am attaching the output to 'lspci -vv -s 02:00.0' as the file device-info. 

All 5.3.0-rc* versions I have tried (including rc4) cause multiple dmesg iwlwifi-related errors (dmesg attached). Examples:

iwlwifi 0000:02:00.0: Failed to get geographic profile info -5
iwlwifi 0000:02:00.0: Microcode SW error detected.  Restarting 0x82000000
iwlwifi 0000:02:00.0: 0x00000038 | BAD_COMMAND

The card cannot scan for networks: 'iw dev wlan0 scan' results in a 'scan aborted!' message.

5.2.0 does not exhibit any of these issues. 

View attachment "dmesg" of type "text/plain" (182869 bytes)

View attachment "config-slk" of type "text/plain" (142474 bytes)

View attachment "device-info" of type "text/plain" (2972 bytes)