linux-kernel - Re: diagnosing resume failures after disconnected USB4 drives (Was: Re: PCI/ASPM: Fix L1SS saving (linus/master commit 7507eb3e7bfac))

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Message-ID: <20250214162948.GJ3713119@black.fi.intel.com>
Date: Fri, 14 Feb 2025 18:29:48 +0200
From: Mika Westerberg <mika.westerberg@...ux.intel.com>
To: Kenneth Crudup <kenny@...ix.com>
Cc: Bjorn Helgaas <helgaas@...nel.org>, ilpo.jarvinen@...ux.intel.com,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	Jian-Hong Pan <jhp@...lessos.org>, linux-pci@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Niklāvs Koļesņikovs <pinkflames.linux@...il.com>,
	Andreas Noever <andreas.noever@...il.com>,
	Michael Jamet <michael.jamet@...el.com>,
	Yehezkel Bernat <YehezkelShB@...il.com>, linux-usb@...r.kernel.org
Subject: Re: diagnosing resume failures after disconnected USB4 drives (Was:
 Re: PCI/ASPM: Fix L1SS saving (linus/master commit 7507eb3e7bfac))

Hi,

On Thu, Feb 13, 2025 at 11:19:35AM -0800, Kenneth Crudup wrote:
> 
> On 2/13/25 05:59, Mika Westerberg wrote:
> 
> > Hi,
> 
> As Murphy's would have it, now my crashes are display-driver related (this
> is Xe, but I've also seen it with i915).
> 
> Attached here just for the heck of it, but I'll be better testing the NVMe
> enclosure-related failures this weekend. Stay tuned!

Okay, I checked quickly and no TB related crash there but I was actually
able to reproduce hang when I unplug the device chain during suspend. I did
not yet have time to look into it deeper. I'm sure this has been working
fine in the past as we tested all kinds of topologies including similar to
this.

I will be out next week for vacation but will continue after that if the
problem is not alraedy solved ;-)