From: Bjorn Helgaas <helgaas@kernel.org>
To: bjorn@helgaas.com
Cc: "Linux PCI" <linux-pci@vger.kernel.org>,
"Ilpo Järvinen" <ilpo.jarvinen@linux.intel.com>
Subject: Re: Fwd: [Bug 221457] New: PCI core drops Resizable BAR sizing after ASPM common-clock reconfiguration on Thunderbolt/USB4 hot-plug link
Date: Mon, 4 May 2026 13:43:25 -0500 [thread overview]
Message-ID: <20260504184325.GA656008@bhelgaas> (raw)
In-Reply-To: <CABhMZUVSiQM+KAXeEFCPJSnQFq1Bc7F6GZys1ucfpE0Gs+3V6A@mail.gmail.com>
[+bcc reporter]
On Mon, May 04, 2026 at 01:29:28PM -0500, Bjorn Helgaas wrote:
> ---------- Forwarded message ---------
> https://bugzilla.kernel.org/show_bug.cgi?id=221457
> ...
> SUMMARY
>
> Initial PCI enumeration assigns BAR 1 = 16 GB on an RTX 5060 Ti behind a
> Thunderbolt 4 link. Shortly after, the pcieport ASPM service runs a
> common-clock reconfigure on the host root port, the downstream bridges go
> through [bus 00-00] reset and re-enumeration, and BAR 1 is reassigned at 256
> MB.
stuck-tamer-growl: Thanks for the report. Would you mind collect the
complete dmesg log and the output of "sudo lspci -vv" and posting them
here (or in the bugzilla if you prefer)?
next prev parent reply other threads:[~2026-05-04 18:43 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <bug-221457-41252@https.bugzilla.kernel.org/>
2026-05-04 18:29 ` Fwd: [Bug 221457] New: PCI core drops Resizable BAR sizing after ASPM common-clock reconfiguration on Thunderbolt/USB4 hot-plug link Bjorn Helgaas
2026-05-04 18:43 ` Bjorn Helgaas [this message]
[not found] ` <AB2EBCFC-663F-48A1-9C11-2DFB7C844B19.1@smtp-inbound1.duck.com>
2026-05-06 5:09 ` stuck-tamer-growl
2026-05-06 12:26 ` Ilpo Järvinen
2026-05-06 12:38 ` Mika Westerberg
2026-05-06 13:07 ` Mario Limonciello
2026-05-06 14:44 ` Mika Westerberg
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