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Re: [patch V3 28/35] PCI/MSI: Simplify pci_irq_get_affinity()
- To: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
- From: Guenter Roeck <linux@xxxxxxxxxxxx>
- Date: Mon, 31 Jan 2022 07:21:40 -0800
- Cc: LKML <linux-kernel@xxxxxxxxxxxxxxx>, Nishanth Menon <nm@xxxxxx>, Mark Rutland <mark.rutland@xxxxxxx>, Stuart Yoder <stuyoder@xxxxxxxxx>, Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>, Will Deacon <will@xxxxxxxxxx>, Ashok Raj <ashok.raj@xxxxxxxxx>, Michael Ellerman <mpe@xxxxxxxxxxxxxx>, Jassi Brar <jassisinghbrar@xxxxxxxxx>, Sinan Kaya <okaya@xxxxxxxxxx>, iommu@xxxxxxxxxxxxxxxxxxxxxxxxxx, Peter Ujfalusi <peter.ujfalusi@xxxxxxxxx>, Bjorn Helgaas <helgaas@xxxxxxxxxx>, linux-arm-kernel@xxxxxxxxxxxxxxxxxxx, Jason Gunthorpe <jgg@xxxxxxxxxx>, linux-pci@xxxxxxxxxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxxx, Kevin Tian <kevin.tian@xxxxxxxxx>, Arnd Bergmann <arnd@xxxxxxxx>, Robin Murphy <robin.murphy@xxxxxxx>, Alex Williamson <alex.williamson@xxxxxxxxxx>, Cedric Le Goater <clg@xxxxxxxx>, Santosh Shilimkar <ssantosh@xxxxxxxxxx>, Bjorn Helgaas <bhelgaas@xxxxxxxxxx>, Megha Dey <megha.dey@xxxxxxxxx>, Juergen Gross <jgross@xxxxxxxx>, Tero Kristo <kristo@xxxxxxxxxx>, Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>, Vinod Koul <vkoul@xxxxxxxxxx>, Marc Zygnier <maz@xxxxxxxxxx>, dmaengine@xxxxxxxxxxxxxxx, linuxppc-dev@xxxxxxxxxxxxxxxx
- Delivery-date: Mon, 31 Jan 2022 15:22:09 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 1/31/22 03:27, Thomas Gleixner wrote:
On Sun, Jan 30 2022 at 09:12, Guenter Roeck wrote:
On Fri, Dec 10, 2021 at 11:19:26PM +0100, Thomas Gleixner wrote:
This patch results in the following runtime warning when booting x86
(32 bit) nosmp images from NVME in qemu.
[ 14.825482] nvme nvme0: 1/0/0 default/read/poll queues
ILLOPC: ca7c6d10: 0f 0b
[ 14.826188] ------------[ cut here ]------------
[ 14.826307] WARNING: CPU: 0 PID: 7 at drivers/pci/msi/msi.c:1114
pci_irq_get_affinity+0x80/0x90
This complains about msi_desc->affinity being NULL.
git bisect bad f48235900182d64537c6e8f8dc0932b57a1a0638
# first bad commit: [f48235900182d64537c6e8f8dc0932b57a1a0638] PCI/MSI:
Simplify pci_irq_get_affinity()
Hrm. Can you please provide dmesg and /proc/interrupts from a
kernel before that commit?
Sure. Please see http://server.roeck-us.net/qemu/x86/.
The logs are generated with with v5.16.4.
Guenter
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