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Date:   Wed, 15 Apr 2020 18:31:20 +0200
From:   Wolfram Sang <wsa@the-dreams.de>
To:     Dmitry Osipenko <digetx@gmail.com>
Cc:     Thierry Reding <thierry.reding@gmail.com>,
        Jonathan Hunter <jonathanh@nvidia.com>,
        Laxman Dewangan <ldewangan@nvidia.com>,
        linux-i2c@vger.kernel.org, linux-tegra@vger.kernel.org,
        linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 1/2] i2c: tegra: Better handle case where CPU0 is busy
 for a long time
Message-ID: <20200415163120.GC2830@ninjato>
References: <20200324191217.1829-1-digetx@gmail.com>
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On Tue, Mar 24, 2020 at 10:12:16PM +0300, Dmitry Osipenko wrote:
> Boot CPU0 always handle I2C interrupt and under some rare circumstances
> (like running KASAN + NFS root) it may stuck in uninterruptible state for
> a significant time. In this case we will get timeout if I2C transfer is
> running on a sibling CPU, despite of IRQ being raised. In order to handle
> this rare condition, the IRQ status needs to be checked after completion
> timeout.
>=20
> Signed-off-by: Dmitry Osipenko <digetx@gmail.com>

Applied to for-current, thanks!


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