From: Gregory Price <gourry@gourry.net>
To: linux-rtc@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, kernel-team@meta.com,
alexandre.belloni@bootlin.com, rui.zhang@intel.com
Subject: Re: [PATCH 0/2] rtc: cmos: Fix ACPI RTC alarm handling
Date: Fri, 2 Oct 2026 06:15:16 -0400 [thread overview]
Message-ID: <ar-DmqHQNJ90HZ55@gourry-fedora-PF4VCD3F> (raw)
In-Reply-To: <20260909225132.1392883-1-gourry@gourry.net>
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
prev parent reply other threads:[~2026-10-02 10:15 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-09 22:51 [PATCH 0/2] rtc: cmos: Fix ACPI RTC alarm handling Gregory Price
2026-09-09 22:51 ` [PATCH 1/2] rtc: cmos: Disable ACPI RTC event before handling it Gregory Price
2026-09-09 23:03 ` sashiko-bot
2026-09-09 22:51 ` [PATCH 2/2] rtc: cmos: Honor explicit use_acpi_alarm parameter value Gregory Price
2026-09-09 22:55 ` sashiko-bot
2026-10-02 10:15 ` Gregory Price [this message]
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