From: Rob Herring <robh@kernel.org>
To: Bjorn Helgaas <helgaas@kernel.org>
Cc: Amit Machhiwal <amachhiw@linux.ibm.com>,
linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org,
devicetree@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
kvm-ppc@vger.kernel.org, Bjorn Helgaas <bhelgaas@google.com>,
Lizhi Hou <lizhi.hou@amd.com>,
Saravana Kannan <saravanak@google.com>,
Vaibhav Jain <vaibhav@linux.ibm.com>,
Nicholas Piggin <npiggin@gmail.com>,
Michael Ellerman <mpe@ellerman.id.au>,
Vaidyanathan Srinivasan <svaidy@linux.ibm.com>,
Kowshik Jois B S <kowsjois@linux.ibm.com>,
Lukas Wunner <lukas@wunner.de>,
kernel-team@lists.ubuntu.com,
Stefan Bader <stefan.bader@canonical.com>
Subject: Re: [PATCH v3] PCI: Fix crash during pci_dev hot-unplug on pseries KVM guest
Date: Tue, 13 Aug 2024 10:43:29 -0600 [thread overview]
Message-ID: <20240813164329.GA1180569-robh@kernel.org> (raw)
In-Reply-To: <20240806200059.GA74866@bhelgaas>
On Tue, Aug 06, 2024 at 03:00:59PM -0500, Bjorn Helgaas wrote:
> On Sat, Aug 03, 2024 at 12:03:25AM +0530, Amit Machhiwal wrote:
> > With CONFIG_PCI_DYNAMIC_OF_NODES [1], a hot-plug and hot-unplug sequence
> > of a PCI device attached to a PCI-bridge causes following kernel Oops on
> > a pseries KVM guest:
>
> What is unique about pseries here? There's nothing specific to
> pseries in the patch, so I would expect this to be a generic problem
> on any arch.
Only pseries does PCI hotplug with DT I think. It would happen if
another system did though, but I think documenting the exact system is
good. No reason we can't do both though.
Rob
next prev parent reply other threads:[~2024-08-13 16:43 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-08-02 18:33 [PATCH v3] PCI: Fix crash during pci_dev hot-unplug on pseries KVM guest Amit Machhiwal
2024-08-02 18:33 ` Amit Machhiwal
2024-08-06 20:00 ` Bjorn Helgaas
2024-08-06 20:00 ` Bjorn Helgaas
2024-08-13 16:43 ` Rob Herring [this message]
2024-08-15 3:20 ` Michael Ellerman
2024-08-16 12:43 ` Amit Machhiwal
2024-08-16 22:59 ` Michael Ellerman
2024-08-19 11:33 ` Amit Machhiwal
2024-08-13 16:44 ` Rob Herring (Arm)
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