linux-kernel - Re: [Bug] Driver mt7921e cause computer reboot.

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Date:   Tue, 5 Oct 2021 01:40:09 +0500
From:   Mikhail Gavrilov <mikhail.v.gavrilov@...il.com>
To:     Linux List Kernel Mailing <linux-kernel@...r.kernel.org>,
        sean.wang@...iatek.com,
        Linux List Kernel Mailing <linux-wireless@...r.kernel.org>,
        objelf@...il.com, lorenzo@...nel.org, Soul.Huang@...iatek.com,
        nbd@....name
Subject: Re: [Bug] Driver mt7921e cause computer reboot.

On Tue, 21 Sept 2021 at 14:33, Mikhail Gavrilov
<mikhail.v.gavrilov@...il.com> wrote:
>
> Hi folks.
> Driver mt7921e causes computer reboot.
> Yesterday I buyed laptop ASUS ROG Strix G15 Advantage Edition G513
> G513QY-HQ007. First thing, I installed my favorite Linux distribution
> there. Everything would be fine, but after setting up Wi-Fi, the
> laptop began to reboot infinitely. Moreover, at the next boot, the
> reboot occurs before the login screen appears.
> I interrupted this infinite reboot loop after disabling Wi-Fi in the BIOS.
> In the kernel log, if looked via journalctl, then nothing suspicious is visible.
> I would still like Wi-Fi to work too. Could you help me with this?
>
>
> kernel log: https://pastebin.com/tdn9jbMy
> lspci: https://pastebin.com/eD8scBSP
> lsusb: https://pastebin.com/SW9EUt8u
>

I was able to boot the system when driver mt7921e was blacklisted
("modprobe.blacklist=mt7921e" in grub).
And I also easily reproduced the reboot when I entered "modprobe
mt7921e" in the open terminal.
I recorded this process on video: https://youtu.be/kft83_nPlyY
And I also recorded netconsole out.

Last messages kernel out:
[  409.498510] cfg80211: Loading compiled-in X.509 certificates for
regulatory database
[  409.498856] cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7'
[  409.590135] mt7921e 0000:05:00.0: enabling device (0000 -> 0002)
[  409.590872] mt7921e 0000:05:00.0: disabling ASPM  L1
[  410.801422] mt7921e 0000:05:00.0: ASIC revision: ffff00ff

Since I used loglevel 8 I don;t have any ideas how debug furver this issue.

Please help.

-- 
Best Regards,
Mike Gavrilov.

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