https://bugzilla.kernel.org/show_bug.cgi?id=47811
Zhang Rui <rui.zh...@intel.com> changed:
What |Removed |Added
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Assignee|acpi_power-off@kernel-bugs. |rui.zh...@intel.com
|osdl.org |
--- Comment #21 from Zhang Rui <rui.zh...@intel.com> ---
I did some research in google, and found that hwclock --systohc may enables RTC
wakeup unexpected, on certain platforms.
so my suggestion is
1. enable RTC wakeup by echo nr_sec > /sys/class/rtc/rtc0/wakealarm
2. attach the output of cat /proc/drivers/rtc both before and after the command
in step1
3. shutdown the machine with "HWCLOCKACCESS=no" but RTC wakealarm enabled.
If we're lucky, we can see that the battery also drains, and we can confirm
that this is caused by the rtc wakeup.
But TBH, all the test above has nothing to do with ACPI, and I don't know how
to fix it even if we can find the root cause.
Maybe we can ask Bryan Henderson <bry...@giraffe-data.com>, the author of
hwclock for help.
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