linux-kernel - Re: bluetooth issues since kernel 6.4 - not discovering other bt devices

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Date:   Wed, 4 Oct 2023 08:35:20 +0200
From:   Erik Dobák <erik.dobak@...il.com>
To:     Linux regressions mailing list <regressions@...ts.linux.dev>
Cc:     Tomasz Moń <tomasz.mon@...dicsemi.no>,
        Bagas Sanjaya <bagasdotme@...il.com>,
        Linux Stable <stable@...r.kernel.org>,
        Linux Bluetooth <linux-bluetooth@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        Linux Mediatek <linux-mediatek@...ts.infradead.org>,
        Marcel Holtmann <marcel@...tmann.org>,
        Johan Hedberg <johan.hedberg@...il.com>,
        Luiz Augusto von Dentz <luiz.dentz@...il.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
Subject: Re: bluetooth issues since kernel 6.4 - not discovering other bt
 devices - /linux/drivers/bluetooth/btusb.c

On Wed, 4 Oct 2023 at 07:20, Linux regression tracking (Thorsten
Leemhuis) <regressions@...mhuis.info> wrote:
>
> On 03.10.23 18:10, Erik Dobák wrote:
> > Sorry Tomasz,
> >
> > that must have been a reality glitch with your commit (cant find the
> > page refering to your commit now). But yes it is probably a kernel bug
> > as it manifests kernels 6.4 and not in the 6.1 LTS version.
>
> Could you then please try a bisection to get us closer to the problem?
> You might want to try mainline (e.g. 6.6-rc4) first, with a bit of luck
> the problem is fixed there already; FWIW, a few BT fixes that might or
> might not be relevant for your case are heading that way and will most
> likely be in 6.6-rc5.
>
> Ciao, Thorsten
Hi Thorsten,

i was able to compile vanila kernel 6.6-rc4 yesterday and the issue
was still there. as it takes ages to compile i will try the
precompiled artix kernel 6.3.4 next to see if the issue disapears.

Regards

E