linux-kernel - Re: Bug 205201 - overflow of DMA mask and bus mask

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Message-ID: <288d3c11-725b-ecdd-2495-b4a69aafb693@xenosoft.de>
Date:   Tue, 12 Nov 2019 23:58:22 +0100
From:   Christian Zigotzky <chzigotzky@...osoft.de>
To:     Christoph Hellwig <hch@....de>
Cc:     linux-arch@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-mm@...ck.org, iommu@...ts.linux-foundation.org,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        paulus@...ba.org, darren@...vens-zone.net,
        "contact@...on.com" <contact@...on.com>, rtd2@...a.co.nz,
        mad skateman <madskateman@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        linuxppc-dev <linuxppc-dev@...ts.ozlabs.org>,
        nsaenzjulienne@...e.de
Subject: Re: Bug 205201 - overflow of DMA mask and bus mask

On 12 November 2019 at 3:41 pm, Christoph Hellwig wrote:
> On Mon, Nov 11, 2019 at 01:22:55PM +0100, Christian Zigotzky wrote:
>> Now, I can definitely say that this patch does not solve the issue.
>>
>> Do you have another patch for testing or shall I bisect?
> I'm still interested in the .config and dmesg.  Especially if the
> board is using arch/powerpc/sysdev/fsl_pci.c, which is the only
> place inside the powerpc arch code doing funny things with the
> bus_dma_mask, which Robin pointed out looks fishy.
>
Here you are:

.config: https://bugzilla.kernel.org/attachment.cgi?id=285815

dmesg: https://bugzilla.kernel.org/attachment.cgi?id=285813

Thanks