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 <38de0776-3adf-4223-b8e0-cedb5a5ebf4d@leemhuis.info>
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From: Gia <giacomo.gio@gmail.com>
Date: Mon, 20 May 2024 11:19:34 +0200
Message-ID: <CAHe5sWYnbJAjGp66Q4H0W_yk9uYTcERmW=sPvJSWTsqbFZFCVg@mail.gmail.com>
Subject: Re: [REGRESSION] Thunderbolt Host Reset Change Causes eGPU
 Disconnection from 6.8.7=>6.8.8
To: Linux regressions mailing list <regressions@lists.linux.dev>
Cc: linux-kernel@vger.kernel.org, 
	"stable@vger.kernel.org" <stable@vger.kernel.org>, kernel@micha.zone, 
	Mario Limonciello <mario.limonciello@amd.com>
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Hi Thorsten,

I'll try to provide a kernel log ASAP, it's not that easy because when
I run into this issue my keyboard isn't working. The kernel parameter
that Mario suggested, thunderbolt.host_reset=3Dfalse, fixes the issue!

I can add that without the suggested kernel parameter the issue
persists with the latest Archlinux kernel 6.9.1.

I also found another report of the issue on Archlinux forum:
https://bbs.archlinux.org/viewtopic.php?id=3D295824


On Mon, May 6, 2024 at 2:53=E2=80=AFPM Linux regression tracking (Thorsten
Leemhuis) <regressions@leemhuis.info> wrote:
>
> [CCing Mario, who asked for the two suspected commits to be backported]
>
> On 06.05.24 14:24, Gia wrote:
> > Hello, from 6.8.7=3D>6.8.8 I run into a similar problem with my Caldigi=
t
> > TS3 Plus Thunderbolt 3 dock.
> >
> > After the update I see this message on boot "xHCI host controller not
> > responding, assume dead" and the dock is not working anymore. Kernel
> > 6.8.7 works great.
>
> Thx for the report. Could you make the kernel log (journalctl -k/dmesg)
> accessible somewhere?
>
> And have you looked into the other stuff that Mario suggested in the
> other thread? See the following mail and the reply to it for details:
>
> https://lore.kernel.org/all/1eb96465-0a81-4187-b8e7-607d85617d5f@gmail.co=
m/T/#u
>
> Ciao, Thorsten
>
> P.S.: To be sure the issue doesn't fall through the cracks unnoticed,
> I'm adding it to regzbot, the Linux kernel regression tracking bot:
>
> #regzbot ^introduced v6.8.7..v6.8.8
> #regzbot title thunderbolt: TB3 dock problems, xHCI host controller not
> responding, assume dead