Re: [PATCH 0/2] rtc: cmos: Fix ACPI RTC alarm handling

[Gregory Price]

On Wed, Sep 09, 2026 at 06:51:30PM -0400, Gregory Price wrote:
> RTC update interrupt emulation can stop delivering events when rtc-cmos
> uses the ACPI RTC fixed event. On an affected system, a test that waits
> for five one-second update events completed only 40 of 50 runs. The ACPI
> ff_rt_clk counter stopped at 218, exactly matching the number of events
> delivered to userspace, with the event status set but delivery disabled.

Gentle ping on this.  tl;dr: in-tree rtctest is broken on some hardware
and there's an obviously boot param fialure.

~Gregory