linux-kernel - Re: [PATCH] PCI: Fix crash during pci_dev hot-unplug on pseries KVM guest

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Message-ID: <CAL_JsqL9hg8Hze4oOP1R55yVXBfTKE=RfwdBraNHiO71K21uNA@mail.gmail.com>
Date: Thu, 11 Jul 2024 06:20:53 -0600
From: Rob Herring <robh@...nel.org>
To: Amit Machhiwal <amachhiw@...ux.ibm.com>
Cc: linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org, 
	linuxppc-dev@...ts.ozlabs.org, kvm-ppc@...r.kernel.org, 
	Bjorn Helgaas <bhelgaas@...gle.com>, Lizhi Hou <lizhi.hou@....com>, 
	Vaibhav Jain <vaibhav@...ux.ibm.com>, Nicholas Piggin <npiggin@...il.com>, 
	Michael Ellerman <mpe@...erman.id.au>, Vaidyanathan Srinivasan <svaidy@...ux.ibm.com>, 
	Kowshik Jois B S <kowsjois@...ux.ibm.com>
Subject: Re: [PATCH] PCI: Fix crash during pci_dev hot-unplug on pseries KVM guest

On Wed, Jul 3, 2024 at 8:17 AM Amit Machhiwal <amachhiw@...ux.ibm.com> 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:

Can I ask why you have this option on in the first place? Do you have
a use for it or it's just a case of distros turn on every kconfig
option.

Rob