linux-kernel - Re: [RESEND PATCH] PCI: aardvark: Fix kernel panic during PIO transfer

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Message-Id: <162322862108.3345.4160808336030929680.b4-ty@arm.com>
Date:   Wed,  9 Jun 2021 09:50:39 +0100
From:   Lorenzo Pieralisi <lorenzo.pieralisi@....com>
To:     Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
        Rob Herring <robh@...nel.org>,
        Pali Rohár <pali@...nel.org>,
        Bjorn Helgaas <bhelgaas@...gle.com>
Cc:     Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Marek Behún <kabel@...nel.org>,
        Xogium <contact@...ium.me>, linux-pci@...r.kernel.org,
        Remi Pommarel <repk@...plefau.lt>,
        Tomasz Maciej Nowak <tmn505@...il.com>,
        linux-kernel@...r.kernel.org
Subject: Re: [RESEND PATCH] PCI: aardvark: Fix kernel panic during PIO transfer

On Tue, 8 Jun 2021 22:36:55 +0200, Pali Rohár wrote:
> Trying to start a new PIO transfer by writing value 0 in PIO_START register
> when previous transfer has not yet completed (which is indicated by value 1
> in PIO_START) causes an External Abort on CPU, which results in kernel
> panic:
> 
>     SError Interrupt on CPU0, code 0xbf000002 -- SError
>     Kernel panic - not syncing: Asynchronous SError Interrupt
> 
> [...]

Applied to pci/aardvark, thanks!

[1/1] PCI: aardvark: Fix kernel panic during PIO transfer
      https://git.kernel.org/lpieralisi/pci/c/f77378171b

Thanks,
Lorenzo