linux-kernel - Re: [REGRESSION v6.1-rc1] rtc: cmos: rtcwake broken on NUC8i7HVK

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Message-ID: <87a65tmwuj.fsf@kernel.org>
Date:   Tue, 18 Oct 2022 10:09:40 +0300
From:   Kalle Valo <kvalo@...nel.org>
To:     Thorsten Leemhuis <regressions@...mhuis.info>
Cc:     "Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Mel Gorman <mgorman@...hsingularity.net>,
        Bjorn Helgaas <bhelgaas@...gle.com>, linux-rtc@...r.kernel.org,
        regressions@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: Re: [REGRESSION v6.1-rc1] rtc: cmos: rtcwake broken on NUC8i7HVK

Thorsten Leemhuis <regressions@...mhuis.info> writes:

> On 17.10.22 18:58, Kalle Valo wrote:
>> 
>> I upgraded my NUC8i7HVK test box to v6.1-rc1 and noticed that my suspend
>> tests with ath11k were broken, the box never woke up from suspend
>> automatically and I had to manually push the power button to trigger
>> resume. This is the command I used:
>> 
>> sudo rtcwake -m mem -s 30
>> 
>> v6.0 works without problems and a bisect found this commit:
>> 
>> commit 4919d3eb2ec0ee364f7e3cf2d99646c1b224fae8
>> Author:     Rafael J. Wysocki <rafael.j.wysocki@...el.com>
>> AuthorDate: Wed Oct 12 20:07:01 2022 +0200
>> Commit:     Alexandre Belloni <alexandre.belloni@...tlin.com>
>> CommitDate: Thu Oct 13 23:27:52 2022 +0200
>> 
>>     rtc: cmos: Fix event handler registration ordering issue
>
> FWIW, Todd also reported this yesterday:
> https://lore.kernel.org/all/967cfe4e2dba242352ccd1cd00bdbcfb48bdd697.camel@linux.intel.com/
> https://bugzilla.kernel.org/show_bug.cgi?id=216600
>
> And Zhang Rui provided a patch in bugzilla that should fix this.

Thanks, this is good info. Strangely enough Zhang's workaround in [1]
did not fix the issue for me, rtcwake is still broken. Unfortunately no
time right now to investigate further.

[1] https://bugzilla.kernel.org/show_bug.cgi?id=216600#c3

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