linux-kernel - Re: iwl_mvm_add_new_dqa_stream_wk BUG in lib/list

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Message-ID: <20190607204421.GK31088@torres.zugschlus.de>
Date:   Fri, 7 Jun 2019 22:44:21 +0200
From:   Marc Haber <mh+netdev@...schlus.de>
To:     Yussuf Khalil <dev@...345.net>
Cc:     linux-wireless@...r.kernel.org, linux-kernel@...r.kernel.org,
        netdev@...r.kernel.org, Johannes Berg <johannes.berg@...el.com>,
        Emmanuel Grumbach <emmanuel.grumbach@...el.com>,
        Luca Coelho <luciano.coelho@...el.com>,
        Intel Linux Wireless <linuxwifi@...el.com>
Subject: Re: iwl_mvm_add_new_dqa_stream_wk BUG in lib/list_debug.c:56

On Fri, Jun 07, 2019 at 10:20:56PM +0200, Yussuf Khalil wrote:
> CC'ing iwlwifi maintainers to get some attention for this issue.
> 
> I am experiencing the very same bug on a ThinkPad T480s running 5.1.6 with
> Fedora 30. A friend is seeing it on his X1 Carbon 6th Gen, too. Both have an
> "Intel Corporation Wireless 8265 / 8275" card according to lspci.

I have an older 04:00.0 Network controller [0280]: Intel Corporation
Wireless 8260 [8086:24f3] (rev 3a) on a Thinkpad X260.

> Notably, in all cases I've observed it occurred right after roaming from one
> AP to another (though I can't guarantee this isn't a coincidence).

I also have multiple Access Points broadcasting the same SSID in my
house, and yes, I experience those issues often when I move from one
part of the hose to another. I have, however, also experienced it in a
hotel when I was using the mobile hotspot offered by my mobile, so that
was clearly not a roaming situation.

Greetings
Marc

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