linux-kernel - Re: [PATCH RFC/RFT 00/12] clk: samsung: Use platform_driver_probe() to avoid _

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Message-ID: <ceb3be8e-8f5c-43a8-a4b9-3ee62e67dfd6@linaro.org>
Date: Fri, 7 Mar 2025 16:00:53 +0100
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: André Draszik <andre.draszik@...aro.org>,
 Krzysztof Kozlowski <krzk@...nel.org>,
 Sylwester Nawrocki <s.nawrocki@...sung.com>,
 Chanwoo Choi <cw00.choi@...sung.com>, Alim Akhtar <alim.akhtar@...sung.com>,
 Michael Turquette <mturquette@...libre.com>, Stephen Boyd
 <sboyd@...nel.org>, Sam Protsenko <semen.protsenko@...aro.org>,
 Peter Griffin <peter.griffin@...aro.org>,
 Tudor Ambarus <tudor.ambarus@...aro.org>
Cc: linux-samsung-soc@...r.kernel.org, linux-clk@...r.kernel.org,
 linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH RFC/RFT 00/12] clk: samsung: Use platform_driver_probe()
 to avoid __refdata

On 07/03/2025 15:29, André Draszik wrote:
> Hi Krzysztof,
> 
> Nice idea!
> 
> On Wed, 2025-03-05 at 22:43 +0100, Krzysztof Kozlowski wrote:
>> RFT/RFC because testing needed. I tried to do the same on exynos5-subcmu
>> and it caused weird oopses which even KASAN did not narrow. Probably
>> because of multiple exynos5-subcmu devices?
> 
> I've tried this on top of next-20250225, and it doesn't work on gs101
> either and OOPSes several times during boot in different places, but
> I can not dig deeper right now.
> 
> [   11.502919][   T58] Unable to handle kernel paging request at virtual address ffffbfe2ab25cc30

Thanks. I'll dig more once have a bit more time. The calltrace is
exactly what I saw with exynos5-subcmu and it puzzles me.

Best regards,
Krzysztof