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Fri, 02 Oct 2026 03:15:18 -0700 (PDT) Received: from gourry-fedora-PF4VCD3F ([2620:10d:c092:500::6:adcb]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-48b38104602sm4990029f8f.26.2026.10.02.03.15.17 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 02 Oct 2026 03:15:17 -0700 (PDT) Date: Fri, 2 Oct 2026 06:15:16 -0400 From: Gregory Price 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 Message-ID: References: <20260909225132.1392883-1-gourry@gourry.net> Precedence: bulk X-Mailing-List: linux-rtc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline 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