linux-kernel - Re: use generic DMA mapping code in powerpc V4

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Message-ID: <f39d4fc6-7e4e-9132-c03f-59f1b52260e0@xenosoft.de>
Date:   Sat, 19 Jan 2019 12:40:09 +0100
From:   Christian Zigotzky <chzigotzky@...osoft.de>
To:     Christoph Hellwig <hch@....de>
Cc:     linux-arch@...r.kernel.org,
        Darren Stevens <darren@...vens-zone.net>,
        linux-kernel@...r.kernel.org, Julian Margetson <runaway@...dw.ms>,
        linux-mm@...ck.org, iommu@...ts.linux-foundation.org,
        Paul Mackerras <paulus@...ba.org>,
        Olof Johansson <olof@...om.net>, linuxppc-dev@...ts.ozlabs.org
Subject: Re: use generic DMA mapping code in powerpc V4

Hi Christoph,

I bought a USB null modem RS-232 serial cable today so I was able to get 
some SATA error messages.

Error messages:

[   13.468538] fsl-sata ffe220000.sata: Sata FSL Platform/CSB Driver init
[   13.475106] fsl-sata ffe220000.sata: failed to start port 0 (errno=-12)
[   13.481736] fsl-sata ffe221000.sata: Sata FSL Platform/CSB Driver init
[   13.488267] fsl-sata ffe221000.sata: failed to start port 0 (errno=-12)

---

errno=-12 = Out of memory

Please find attached the complete serial log.

Cheers,
Christian


On 18 January 2019 at 4:06PM, Christian Zigotzky wrote:
> Hello Christoph,
>
> I was able to compile 257002094bc5935dd63207a380d9698ab81f0775 from 
> your Git powerpc-dma.6-debug today.
>
> Unfortunately I don't see any error messages (kernel ring buffer) and 
> I don't have a RS232 serial null modem cable to get them.
>
> Cheers,
> Christian
>
>


View attachment "PuTTY_serial.log" of type "text/x-log" (35113 bytes)