linux-kernel - Re: [PATCH] PCI/ASPM: Enable ASPM for links under VMD domain

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Message-ID: <20200902225439.GA24219@redsun51.ssa.fujisawa.hgst.com>
Date:   Thu, 3 Sep 2020 07:54:39 +0900
From:   Keith Busch <kbusch@...nel.org>
To:     David Fugate <david.fugate@...ux.intel.com>
Cc:     Christoph Hellwig <hch@...radead.org>,
        Kai Heng Feng <kai.heng.feng@...onical.com>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        jonathan.derrick@...el.com, Mario.Limonciello@...l.com,
        Heiner Kallweit <hkallweit1@...il.com>,
        Mika Westerberg <mika.westerberg@...ux.intel.com>,
        "Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
        Xiongfeng Wang <wangxiongfeng2@...wei.com>,
        Krzysztof Wilczynski <kw@...ux.com>,
        "open list:PCI SUBSYSTEM" <linux-pci@...r.kernel.org>,
        open list <linux-kernel@...r.kernel.org>,
        Dan Williams <dan.j.williams@...el.com>,
        "Huffman, Amber" <amber.huffman@...el.com>, david.fugate@...el.com
Subject: Re: [PATCH] PCI/ASPM: Enable ASPM for links under VMD domain

On Wed, Sep 02, 2020 at 01:48:19PM -0600, David Fugate wrote:
> Over the years, I've been forwarded numerous emails from VMD customers 
> praising it's ability to prevent Linux kernel panics upon hot-removals
> and inserts of U.2 NVMe drives.

The same nvme and pcie hotplug drivers are used with or without VMD
enabled. Where are the bug reports for linux kernel panics? We have a
very real interest in fixing such issues.