From: Lukas Wunner <lukas@wunner.de>
To: Denis Benato <benato.denis96@gmail.com>
Cc: Mario Limonciello <superm1@kernel.org>,
Raag Jadav <raag.jadav@intel.com>,
rafael@kernel.org, mahesh@linux.ibm.com, oohall@gmail.com,
bhelgaas@google.com, linux-pci@vger.kernel.org,
linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org,
ilpo.jarvinen@linux.intel.com,
aravind.iddamsetty@linux.intel.com
Subject: Re: [PATCH v4] PCI: Prevent power state transition of erroneous device
Date: Wed, 21 May 2025 15:39:22 +0200 [thread overview]
Message-ID: <aC3XiuOPVYB2EX18@wunner.de> (raw)
In-Reply-To: <ee1117cf-6367-4e9a-aa85-ccfc6c63125d@gmail.com>
On Tue, May 20, 2025 at 07:22:04PM +0200, Denis Benato wrote:
> This is the very same exact kernel, minus the patch in question:
> https://pastebin.com/rwMYgG7C
>
> Both previous kernel and this one have CONFIG_PCI_DEBUG=y.
This log excerpt shows that the ASMedia Thunderbolt controller
below the Intel Thunderbolt controller couldn't be enumerated
on boot:
mag 20 18:42:20 denis-pc kernel: pci 0000:03:01.0: broken device, retraining non-functional downstream link at 2.5GT/s
mag 20 18:42:20 denis-pc kernel: pci 0000:03:01.0: retraining failed
However, the Thunderbolt tunnel goes up and the devices are
enumerated 24 seconds later:
mag 20 18:42:44 denis-pc kernel: pcieport 0000:03:01.0: pciehp: Slot(1-1): Card present
mag 20 18:42:44 denis-pc kernel: pcieport 0000:03:01.0: pciehp: Slot(1-1): Link Up
Thanks,
Lukas
next prev parent reply other threads:[~2025-05-21 13:39 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-05-19 10:28 Raag Jadav
2025-05-19 10:41 ` Raag Jadav
2025-05-19 21:42 ` Denis Benato
2025-05-20 9:48 ` Raag Jadav
2025-05-20 15:23 ` Mario Limonciello
2025-05-20 15:47 ` Raag Jadav
2025-05-20 15:49 ` Mario Limonciello
2025-05-20 17:22 ` Denis Benato
2025-05-20 17:39 ` Mario Limonciello
2025-05-20 18:42 ` Raag Jadav
2025-05-20 18:56 ` Mario Limonciello
2025-05-21 8:54 ` Raag Jadav
2025-05-21 11:27 ` Rafael J. Wysocki
2025-05-23 15:23 ` Rafael J. Wysocki
2025-05-30 17:23 ` Raag Jadav
2025-05-30 17:49 ` Rafael J. Wysocki
2025-06-04 15:42 ` Raag Jadav
2025-06-04 18:19 ` Rafael J. Wysocki
2025-06-05 11:44 ` Raag Jadav
2025-06-05 12:26 ` Rafael J. Wysocki
2025-06-10 13:44 ` Raag Jadav
2025-06-10 13:53 ` Rafael J. Wysocki
2025-06-20 12:14 ` Raag Jadav
2025-05-21 13:39 ` Lukas Wunner [this message]
2025-05-21 17:06 ` Mario Limonciello
2025-05-21 20:28 ` Denis Benato
2025-05-22 7:31 ` Lukas Wunner
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