linux-kernel - Re: [REGRESSION][BISECTED] "xHCI host controller not responding, assume dead" on stable kernel

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Date: Tue, 21 May 2024 10:07:23 +0200
From: Gia <giacomo.gio@...il.com>
To: Mika Westerberg <mika.westerberg@...ux.intel.com>
Cc: Mario Limonciello <mario.limonciello@....com>, Christian Heusel <christian@...sel.eu>, 
	Linux regressions mailing list <regressions@...ts.linux.dev>, 
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, 
	"stable@...r.kernel.org" <stable@...r.kernel.org>, "kernel@...ha.zone" <kernel@...ha.zone>, 
	Andreas Noever <andreas.noever@...il.com>, Michael Jamet <michael.jamet@...el.com>, 
	Yehezkel Bernat <YehezkelShB@...il.com>, 
	"linux-usb@...r.kernel.org" <linux-usb@...r.kernel.org>, Benjamin Böhmke <benjamin@...hmke.net>, 
	"S, Sanath" <Sanath.S@....com>
Subject: Re: [REGRESSION][BISECTED] "xHCI host controller not responding,
 assume dead" on stable kernel > 6.8.7

Thank you Mika,

Here you have the output of sudo journalctl -k without enabling the
kernel option "pcie_aspm=off": https://codeshare.io/7JPgpE. Without
"pcie_aspm=off", "thunderbolt.host_reset=false" is not needed, my
thunderbolt dock does work. I also connected a 4k monitor to the
thunderbolt dock thinking it could provide more data.

I'm almost sure I used this option when I set up this system because
it solved some issues with system suspending, but it happened many
months ago.



On Tue, May 21, 2024 at 7:15 AM Mika Westerberg
<mika.westerberg@...ux.intel.com> wrote:
>
> Hi,
>
> On Mon, May 20, 2024 at 05:57:42PM +0200, Gia wrote:
> > Hi Mario,
> >
> > In my case in both cases the value for:
> >
> > $ cat /sys/bus/thunderbolt/devices/domain0/iommu_dma_protection
> >
> > is 0.
> >
> > Output of sudo journalctl -k with kernel option thunderbolt.dyndbg=+p:
> > https://codeshare.io/qAXLoj
> >
> > Output of sudo dmesg with kernel option thunderbolt.dyndbg=+p:
> > https://codeshare.io/zlPgRb
>
> I see you have "pcie_aspm=off" in the kernel command line. That kind of
> affects things. Can you drop that and see if it changes anything? And
> also provide a new full dmesg with "thunderbolt.dyndbg=+p" in the
> command line (dropping pcie_aspm_off)?
>
> Also is there any particular reason you have it there?