From: Mika Westerberg <mika.westerberg@linux.intel.com>
To: Lukas Wunner <lukas@wunner.de>
Cc: Kenneth Crudup <kenny@panix.com>,
Bjorn Helgaas <helgaas@kernel.org>,
ilpo.jarvinen@linux.intel.com,
Bjorn Helgaas <bhelgaas@google.com>,
Jian-Hong Pan <jhp@endlessos.org>,
linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org,
Nikl??vs Ko??es??ikovs <pinkflames.linux@gmail.com>,
Andreas Noever <andreas.noever@gmail.com>,
Michael Jamet <michael.jamet@intel.com>,
Yehezkel Bernat <YehezkelShB@gmail.com>,
linux-usb@vger.kernel.org
Subject: Re: diagnosing resume failures after disconnected USB4 drives (Was: Re: PCI/ASPM: Fix L1SS saving (linus/master commit 7507eb3e7bfac))
Date: Wed, 26 Feb 2025 11:19:58 +0200 [thread overview]
Message-ID: <20250226091958.GN3713119@black.fi.intel.com> (raw)
In-Reply-To: <Z77ak-4YsdAKXbHr@wunner.de>
On Wed, Feb 26, 2025 at 10:10:43AM +0100, Lukas Wunner wrote:
> On Wed, Feb 26, 2025 at 10:44:04AM +0200, Mika Westerberg wrote:
> > [Meteor Lake host] <--> [TB 4 dock] <--> [TB 3 NVMe]
> [...]
> > I added "no_console_suspend" to the command line and the did sysrq-w to
> > get list of blocked tasks. I've attached it just in case it is needed.
> [...]
>
> This looks like the deadlock we've had for years when hot-removing
> nested hotplug ports.
>
> If you attach only a single device to the host, I guess the issue
> does not occur, right?
Yes.
> Previous attempts to fix this:
>
> https://lore.kernel.org/all/4c882e25194ba8282b78fe963fec8faae7cf23eb.1529173804.git.lukas@wunner.de/
>
> https://lore.kernel.org/all/20240612181625.3604512-1-kbusch@meta.com/
Well, it does not happen if I revert the commit so isn't that a
regresssion?
next prev parent reply other threads:[~2025-02-26 9:20 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-02-08 20:56 PCI/ASPM: Fix L1SS saving (linus/master commit 7507eb3e7bfac) Kenneth Crudup
2025-02-09 3:47 ` Kenneth Crudup
2025-02-10 21:05 ` Bjorn Helgaas
2025-02-11 0:18 ` Kenneth Crudup
2025-02-11 5:57 ` Mika Westerberg
2025-02-11 6:17 ` diagnosing resume failures after disconnected USB4 drives (Was: Re: PCI/ASPM: Fix L1SS saving (linus/master commit 7507eb3e7bfac)) Kenneth Crudup
2025-02-13 13:59 ` Mika Westerberg
2025-02-13 19:19 ` Kenneth Crudup
2025-02-14 16:29 ` Mika Westerberg
2025-02-14 17:39 ` Kenneth Crudup
2025-02-26 8:44 ` Mika Westerberg
2025-02-26 9:10 ` Lukas Wunner
2025-02-26 9:19 ` Mika Westerberg [this message]
2025-03-03 20:00 ` Lukas Wunner
2025-03-03 20:57 ` Kenneth Crudup
2025-03-04 8:23 ` Mika Westerberg
2025-03-06 16:45 ` Lukas Wunner
2025-03-06 16:56 ` Kenneth Crudup
2025-03-06 18:18 ` Lukas Wunner
2025-03-06 20:38 ` Kenneth Crudup
2025-03-07 2:04 ` Kenneth Crudup
2025-03-07 10:34 ` Mika Westerberg
2025-02-26 15:31 ` Kenneth Crudup
2025-02-26 21:13 ` Kenneth Crudup
2025-02-26 21:14 ` Kenneth Crudup
2025-02-27 17:46 ` Kenneth Crudup
2025-02-28 10:49 ` Mika Westerberg
2025-02-28 16:04 ` Kenneth Crudup
2025-03-02 16:13 ` Kenneth Crudup
2025-03-03 10:48 ` Mika Westerberg
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