From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alan Jenkins Subject: Re: [Bug #11841] plenty of line "ACPI: EC: non-query interrupt received, switching to interrupt mode" in dmesg Date: Sun, 26 Oct 2008 10:29:46 +0000 Message-ID: <4904469A.2090803@tuffmail.co.uk> References: Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: Received: from ug-out-1314.google.com ([66.249.92.171]:27010 "EHLO ug-out-1314.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752361AbYJZK3w (ORCPT ); Sun, 26 Oct 2008 06:29:52 -0400 Received: by ug-out-1314.google.com with SMTP id 39so32030ugf.37 for ; Sun, 26 Oct 2008 03:29:50 -0700 (PDT) In-Reply-To: Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: Sanjoy Mahajan Cc: "Rafael J. Wysocki" , Linux Kernel Mailing List , Francois Valenduc , linux acpi Sanjoy Mahajan wrote: >> The following bug entry is on the current list of known regressions >> from 2.6.27. > >> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11841 >> Subject : plenty of line "ACPI: EC: non-query interrupt received, switching to interrupt mode" in dmesg > > I see these messages already with 2.6.27.3: > > # grep non-query /var/log/dmesg > [ 0.205977] ACPI: EC: non-query interrupt received, switching to interrupt mode > > There are 9 more occurrences in the current ring buffer: > # dmesg |grep non-query | wc -l > 9 > > Each one happens right after waking from S3 sleep, for example: > > [70168.288590] CPU1 is up > [70168.288594] ACPI: Waking up from system sleep state S3 > [70169.624254] ACPI: EC: non-query interrupt received, switching to interrupt mode > > The setup is a TP T60 w/ Intel graphics, wireless (i.e. no taint), > Debian unstable, but with vanilla kernel 2.6.27.3. > > -Sanjoy It's expected that you see that message on both boot and every wakeup from suspend. If you look at the dmesg Francios' posted, his issue is that there are _floods_ of this message during boot. That's not expected :). Regards Alan