linux-kernel - Re: [BUG] iwlwifi: card unusable after firmware crash

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Message-ID: <20201208080559.6131e8da@kicinski-fedora-pc1c0hjn.DHCP.thefacebook.com>
Date:   Tue, 8 Dec 2020 08:05:59 -0800
From:   Jakub Kicinski <kuba@...nel.org>
To:     Rui Salvaterra <rsalvaterra@...il.com>
Cc:     luciano.coelho@...el.com, johannes.berg@...el.com,
        mordechay.goodstein@...el.com, linux-wireless@...r.kernel.org,
        linux-kernel@...r.kernel.org, linuxwifi@...el.com
Subject: Re: [BUG] iwlwifi: card unusable after firmware crash

On Tue, 8 Dec 2020 11:27:50 +0000 Rui Salvaterra wrote:
> Hi, everyone,
> 
> I'm running Linux 5.10-rc7 with this firmware/hardware:
> 
> [    1.431878] iwlwifi 0000:02:00.0: loaded firmware version
> 29.198743027.0 7265D-29.ucode op_mode iwlmvm
> [    1.431899] iwlwifi 0000:02:00.0: Detected Intel(R) Dual Band
> Wireless AC 3165, REV=0x210
> 
> Most of the time, after disabling/enabling Wi-Fi (or, say, rebooting
> the router), the card dies and only comes back after reboot. This is
> the relevant dmesg output:

Just to confirm - is this a regression in 5.10-rc? Does 5.9 work
smoothly in the problematic scenario?