linux-kernel - Re: [PATCH] mtd: nand: raw: qcom_nandc: Don't clear_bam

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Message-ID: <20220408132941.GA12635@thinkpad>
Date:   Fri, 8 Apr 2022 18:59:41 +0530
From:   Manivannan Sadhasivam <mani@...nel.org>
To:     Konrad Dybcio <konrad.dybcio@...ainline.org>
Cc:     Sricharan Ramabadhran <sricharan@...eaurora.org>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Manivannan Sadhasivam <mani@...nel.org>,
        pragalla@...eaurora.org, ~postmarketos/upstreaming@...ts.sr.ht,
        martin.botka@...ainline.org,
        angelogioacchino.delregno@...ainline.org,
        marijn.suijten@...ainline.org, jamipkettunen@...ainline.org,
        Richard Weinberger <richard@....at>,
        Vignesh Raghavendra <vigneshr@...com>,
        linux-mtd@...ts.infradead.org, linux-arm-msm@...r.kernel.org,
        linux-kernel@...r.kernel.org, mdalam@...eaurora.org,
        bbhatt@...eaurora.org, hemantk@...eaurora.org
Subject: Re: [PATCH] mtd: nand: raw: qcom_nandc: Don't clear_bam_transaction
 on READID

Hi,

On Fri, Mar 11, 2022 at 10:22:51PM +0100, Konrad Dybcio wrote:
> 
>

[...]
 
> I have 3 logs for you:
> 
> [1] is KASAN=y, with this patch
> [2] is KASAN=y, WITHOUT this patch (should die, but doesn't - does KASAN prevent it from doing something stupid?)
> [3] is KASAN=n, WITHOUT this patch (dies as expected)
> 

We reproduced the same issue on SDX65-MTP board and your hack worked :)
Since this board is available inside Qcom, now Sadre and Sricharan should be
able to investigate it properly.

Thanks,
Mani

> Looks like there's a lot happening..
> 
> 
> Konrad
> > 
> > Regards,
> >   Sricharan
> > 
> > 
> 
> [1] https://paste.debian.net/1233873/
> [2] https://paste.debian.net/1233874/
> [3] https://paste.debian.net/1233878/