linux-kernel - Re: Regression: memory corruption on Atmel SAMA5D31

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Message-ID: <c5928610-4902-27f3-7312-e8c85eefad39@axentia.se>
Date:   Wed, 18 May 2022 09:51:04 +0200
From:   Peter Rosin <peda@...ntia.se>
To:     Tudor.Ambarus@...rochip.com, regressions@...mhuis.info,
        Nicolas.Ferre@...rochip.com, alexandre.belloni@...tlin.com
Cc:     du@...ntia.se, Patrice.Vilchez@...rochip.com,
        Cristian.Birsan@...rochip.com, Ludovic.Desroches@...rochip.com,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        gregkh@...uxfoundation.org, saravanak@...gle.com
Subject: Re: Regression: memory corruption on Atmel SAMA5D31

2022-05-18 at 08:21, Tudor.Ambarus@...rochip.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@...rochip.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