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Date: Mon, 20 May 2024 16:39:18 +0200
From: Christian Heusel <christian@heusel.eu>
To: Linux regressions mailing list <regressions@lists.linux.dev>
Cc: Gia <giacomo.gio@gmail.com>, linux-kernel@vger.kernel.org, 
	"stable@vger.kernel.org" <stable@vger.kernel.org>, kernel@micha.zone, Mario Limonciello <mario.limonciello@amd.com>, 
	Andreas Noever <andreas.noever@gmail.com>, Michael Jamet <michael.jamet@intel.com>, 
	Mika Westerberg <mika.westerberg@linux.intel.com>, Yehezkel Bernat <YehezkelShB@gmail.com>, 
	linux-usb@vger.kernel.org, Benjamin =?utf-8?Q?B=C3=B6hmke?= <benjamin@boehmke.net>, 
	Sanath S <Sanath.S@amd.com>
Subject: Re: [REGRESSION][BISECTED] "xHCI host controller not responding,
 assume dead" on stable kernel > 6.8.7
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On 24/05/06 02:53PM, Linux regression tracking (Thorsten Leemhuis) wrote:
> [CCing Mario, who asked for the two suspected commits to be backported]
>=20
> 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 Caldigit
> > TS3 Plus Thunderbolt 3 dock.
> >=20
> > 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.

We now have some further information on the matter as somebody was kind
enough to bisect the issue in the [Arch Linux Forums][0]:

    cc4c94a5f6c4 ("thunderbolt: Reset topology created by the boot firmware=
")

This is a stable commit id, the relevant mainline commit is:

    59a54c5f3dbd ("thunderbolt: Reset topology created by the boot firmware=
")

The other reporter created [a issue][1] in our bugtracker, which I'll
leave here just for completeness sake.

Reported-by: Benjamin B=F6hmke <benjamin@boehmke.net>
Reported-by: Gia <giacomo.gio@gmail.com>
Bisected-by: Benjamin B=F6hmke <benjamin@boehmke.net>

The person doing the bisection also offered to chime in here if further
debugging is needed!

Also CC'ing the Commitauthors & Subsystem Maintainers for this report.

Cheers,
Christian

[0]: https://bbs.archlinux.org/viewtopic.php?pid=3D2172526
[1]: https://gitlab.archlinux.org/archlinux/packaging/packages/linux/-/issu=
es/48

#regzbot introduced: 59a54c5f3dbd
#regzbot link: https://gitlab.archlinux.org/archlinux/packaging/packages/li=
nux/-/issues/48

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