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

From: Rafael J. Wysocki
Date: Tue Oct 18 2022 - 12:36:54 EST


On 10/18/2022 9:09 AM, Kalle Valo wrote:
Thorsten Leemhuis <regressions@xxxxxxxxxxxxx> 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@xxxxxxxxx>
AuthorDate: Wed Oct 12 20:07:01 2022 +0200
Commit: Alexandre Belloni <alexandre.belloni@xxxxxxxxxxx>
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@xxxxxxxxxxxxxxx/
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

Please try https://lore.kernel.org/linux-acpi/5887691.lOV4Wx5bFT@kreacher/