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Date:   Tue, 12 Nov 2019 15:41:09 +0100
From:   Christoph Hellwig <hch@lst.de>
To:     Christian Zigotzky <chzigotzky@xenosoft.de>
Cc:     Christoph Hellwig <hch@lst.de>, linux-arch@vger.kernel.org,
        linux-kernel@vger.kernel.org, linux-mm@kvack.org,
        iommu@lists.linux-foundation.org,
        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
        paulus@samba.org, darren@stevens-zone.net,
        "contact@a-eon.com" <contact@a-eon.com>, rtd2@xtra.co.nz,
        mad skateman <madskateman@gmail.com>,
        Rob Herring <robh+dt@kernel.org>,
        linuxppc-dev <linuxppc-dev@lists.ozlabs.org>,
        nsaenzjulienne@suse.de
Subject: Re: Bug 205201 - overflow of DMA mask and bus mask
Message-ID: <20191112144109.GA11805@lst.de>
References: <71A251A5-FA06-4019-B324-7AED32F7B714@xenosoft.de> <1b0c5c21-2761-d3a3-651b-3687bb6ae694@xenosoft.de> <3504ee70-02de-049e-6402-2d530bf55a84@xenosoft.de> <46025f1b-db20-ac23-7dcd-10bc43bbb6ee@xenosoft.de> <20191105162856.GA15402@lst.de> <2f3c81bd-d498-066a-12c0-0a7715cda18f@xenosoft.de> <d2c614ec-c56e-3ec2-12d0-7561cd30c643@xenosoft.de> <af32bfcc-5559-578d-e1f4-75e454c965bf@xenosoft.de> <0c5a8009-d28b-601f-3d1a-9de0e869911c@xenosoft.de> <a794864f-04ae-9b90-50e7-01b416c861fe@xenosoft.de>
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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.

>
> Thanks,
> Christian
---end quoted text---