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Message-ID: <7af4b1f0-2757-4016-cb48-5fc5bc9f6bc2@samsung.com>
Date: Sat, 24 Sep 2022 00:02:57 +0200
From: Marek Szyprowski <m.szyprowski@...sung.com>
To: Daniel Lezcano <daniel.lezcano@...aro.org>, rafael@...nel.org
Cc: linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org,
rui.zhang@...el.com,
Bartlomiej Zolnierkiewicz <bzolnier@...il.com>,
Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
Amit Kucheria <amitk@...nel.org>,
Alim Akhtar <alim.akhtar@...sung.com>,
"open list:SAMSUNG THERMAL DRIVER"
<linux-samsung-soc@...r.kernel.org>,
"moderated list:ARM/SAMSUNG S3C, S5P AND EXYNOS ARM ARCHITECTURES"
<linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH v4 10/30] thermal/drivers/exynos: Replace
of_thermal_is_trip_valid() by thermal_zone_get_trip()
Hi Daniel,
On 23.09.2022 19:40, Daniel Lezcano wrote:
>
> Hi Marek,
>
> thanks for reporting
>
> On 23/09/2022 16:09, Marek Szyprowski wrote:
>
> [ ... ]
>
>> Exception stack(0xf082dfb0 to 0xf082dff8)
>>
>> [deadlock]
>>
>> Something is wrong in locking in the functions from the above
>> stacktrace.
>
> Are you sure this deadlock is coming from this patch? Does a revert of
> this patch solve the issue ?
>
Ups, my fault. It looks that I've copied SHA from the wrong window while
preparing the report. The bisection pointed to the 78ffa3e58d93
("thermal/core: Add a generic thermal_zone_get_trip() function") commit
and I've already found how to fix the deadlock. I will report it again
under the proper patch.
Best regards
--
Marek Szyprowski, PhD
Samsung R&D Institute Poland
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