linux-kernel - Re: [patch V3 28/35] PCI/MSI: Simplify pci_irq_get

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Date:   Mon, 20 Dec 2021 12:55:51 +0100
From:   Thomas Gleixner <tglx@...utronix.de>
To:     Cédric Le Goater <clg@...d.org>,
        Nathan Chancellor <nathan@...nel.org>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Bjorn Helgaas <helgaas@...nel.org>,
        Marc Zygnier <maz@...nel.org>,
        Alex Williamson <alex.williamson@...hat.com>,
        Kevin Tian <kevin.tian@...el.com>,
        Jason Gunthorpe <jgg@...dia.com>,
        Megha Dey <megha.dey@...el.com>,
        Ashok Raj <ashok.raj@...el.com>, linux-pci@...r.kernel.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Juergen Gross <jgross@...e.com>,
        xen-devel@...ts.xenproject.org, Arnd Bergmann <arnd@...db.de>,
        Michael Ellerman <mpe@...erman.id.au>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        linuxppc-dev@...ts.ozlabs.org, Bjorn Helgaas <bhelgaas@...gle.com>,
        Stuart Yoder <stuyoder@...il.com>,
        Laurentiu Tudor <laurentiu.tudor@....com>,
        Nishanth Menon <nm@...com>, Tero Kristo <kristo@...nel.org>,
        Santosh Shilimkar <ssantosh@...nel.org>,
        linux-arm-kernel@...ts.infradead.org,
        Vinod Koul <vkoul@...nel.org>, dmaengine@...r.kernel.org,
        Mark Rutland <mark.rutland@....com>,
        Will Deacon <will@...nel.org>,
        Robin Murphy <robin.murphy@....com>,
        Joerg Roedel <joro@...tes.org>,
        iommu@...ts.linux-foundation.org,
        Jassi Brar <jassisinghbrar@...il.com>,
        Peter Ujfalusi <peter.ujfalusi@...il.com>,
        Sinan Kaya <okaya@...nel.org>
Subject: Re: [patch V3 28/35] PCI/MSI: Simplify pci_irq_get_affinity()

On Sat, Dec 18 2021 at 21:25, Cédric Le Goater wrote:

> On 12/18/21 11:25, Thomas Gleixner wrote:
>> On Fri, Dec 17 2021 at 15:30, Nathan Chancellor wrote:
>>> On Fri, Dec 10, 2021 at 11:19:26PM +0100, Thomas Gleixner wrote:
>>> I just bisected a boot failure on my AMD test desktop to this patch as
>>> commit f48235900182 ("PCI/MSI: Simplify pci_irq_get_affinity()") in
>>> -next. It looks like there is a problem with the NVMe drive after this
>>> change according to the logs. Given that the hard drive is not getting
>>> mounted for journald to write logs to, I am not really sure how to get
>>> them from the machine so I have at least taken a picture of what I see
>>> on my screen; open to ideas on that front!
>> 
>> Bah. Fix below.
>
> That's a fix for the issue I was seeing on pseries with NVMe.
>
> Tested-by: Cédric Le Goater <clg@...d.org>

I had a faint memory that I've seen that issue before, but couldn't find
the mail in those massive threads.

Thanks for confirming!

       tglx