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Message-ID: <9e2306a9-8181-ba43-e331-b3b70c1a72eb@samsung.com>
Date:   Wed, 20 Apr 2022 11:47:22 +0200
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Subject: Re: [PATCH v3 2/3] genirq: Always limit the affinity to online CPUs
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To:     Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>,
        Marc Zyngier <maz@kernel.org>
Cc:     linux-kernel <linux-kernel@vger.kernel.org>,
        'Linux Samsung SOC' <linux-samsung-soc@vger.kernel.org>,
        Thomas Gleixner <tglx@linutronix.de>,
        John Garry <john.garry@huawei.com>,
        Xiongfeng Wang <wangxiongfeng2@huawei.com>,
        David Decotigny <ddecotig@google.com>
From:   Marek Szyprowski <m.szyprowski@samsung.com>
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References: <20220405185040.206297-1-maz@kernel.org>
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        <4b7fc13c-887b-a664-26e8-45aed13f048a@samsung.com>
        <878rs8c2t2.wl-maz@kernel.org>
        <5dcf8d22-e9b3-f306-4c5f-256707e08fbf@samsung.com>
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        <39f69dfe-32e5-4cb3-118b-5c02b28cbcff@samsung.com>
        <70123e98-046f-f10e-1032-8d112edd3ecf@linaro.org>
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Hi Krzysztof,

On 20.04.2022 11:13, Krzysztof Kozlowski wrote:
> On 14/04/2022 13:08, Marek Szyprowski wrote:
>>> Thanks for all of the debug, super helpful. The issue is that we don't
>>> handle the 'force' case, which a handful of drivers are using when
>>> bringing up CPUs (and doing so before the CPUs are marked online).
>>>
>>> Can you please give the below hack a go?
>> This patch fixed the issue. Thanks! Feel free to add my:
>>
>> Reported-by: Marek Szyprowski <m.szyprowski@samsung.com>
>>
>> Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
> Hi Marc,
>
> Linux-next still fails to boot on Exynos5422 boards, so I wonder if you
> applied the fix?
>
> Instead of silent fail there is now "Unable to handle kernel paging
> request at virtual address f0836644", so it is slightly different.

This is yet another issue (related to all ARM 32bit boards) introduced 
in next-20220413, see:

https://lore.kernel.org/all/20220405014836.14077-1-peterx@redhat.com/T/#m6137721ae1323fdf424cee0f8ea1a6af5a3af396

Best regards
-- 
Marek Szyprowski, PhD
Samsung R&D Institute Poland