linux-kernel - Re: Issues with i.MX SPI DMA transfers

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <ec3fdef9-8f74-1a5a-e34a-d66b9e28dc5d@gmail.com>
Date:   Thu, 28 Mar 2019 09:58:52 +0300
From:   Igor Plyatov <plyatov@...il.com>
To:     Aisheng Dong <aisheng.dong@....com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-spi@...r.kernel.org" <linux-spi@...r.kernel.org>,
        dl-linux-imx <linux-imx@....com>,
        Fabio Estevam <festevam@...il.com>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Shawn Guo <shawnguo@...nel.org>,
        Mark Brown <broonie@...nel.org>,
        "dmaengine@...r.kernel.org" <dmaengine@...r.kernel.org>,
        Vinod Koul <vkoul@...nel.org>,
        Dan Williams <dan.j.williams@...el.com>,
        Andy Duan <fugang.duan@....com>, Han Xu <han.xu@....com>,
        Robin Gong <yibin.gong@....com>,
        Clark Wang <xiaoning.wang@....com>
Subject: Re: Issues with i.MX SPI DMA transfers

Dear developers,

I have update about these issues.

12 hours testing show very fast (some seconds) appearance of byte 
duplication at interface spi4 (alias for ecspi5), while interfaces spi0 
(alias for ecspi1) and spi1 (alias for ecspi2) work flawless (at least 
without any other OS load).

Looks like, ecspi5 has some different configuration in SPI or SDMA 
drivers or bug in SDMA script.

Any ideas?

Best wishes.

--

Igor Plyatov