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Message-ID: <c5928610-4902-27f3-7312-e8c85eefad39@axentia.se>
Date:   Wed, 18 May 2022 09:51:04 +0200
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Subject: Re: Regression: memory corruption on Atmel SAMA5D31
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To:     Tudor.Ambarus@microchip.com, regressions@leemhuis.info,
        Nicolas.Ferre@microchip.com, alexandre.belloni@bootlin.com
Cc:     du@axentia.se, Patrice.Vilchez@microchip.com,
        Cristian.Birsan@microchip.com, Ludovic.Desroches@microchip.com,
        linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
        gregkh@linuxfoundation.org, saravanak@google.com
References: <13c6c9a2-6db5-c3bf-349b-4c127ad3496a@axentia.se>
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 <220ddbef-5592-47b7-5150-4291f9532c6d@axentia.se>
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 <1a398441-c901-2dae-679e-f0b5b1c43b18@axentia.se>
 <14e5ccbe-8275-c316-e3e1-f77461309249@microchip.com>
From:   Peter Rosin <peda@axentia.se>
In-Reply-To: <14e5ccbe-8275-c316-e3e1-f77461309249@microchip.com>
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2022-05-18 at 08:21, Tudor.Ambarus@microchip.com wrote:
> On 5/17/22 17:50, Peter Rosin wrote:
>> EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe
>>
>> 2022-04-11 at 08:21, Tudor.Ambarus@microchip.com wrote:
>>> There are some concurrency bugs in the at-hdmac (DMA) driver, I'm handling them
>>> and will come with a resolution. Disabling the DMA showed the bug is no more
>>> reproducible.
>>
>> Any news?
>>
> 
> I'm now allocated on this, so I started looking around what has to be done.
> I'm thinking of using virt-dma to manage the channels and the request queues.
> Will get back to you after I'll have something working.

Sounds good, thanks!

Cheers,
Peter