From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from maynard.decadent.org.uk (maynard.decadent.org.uk [65.21.191.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4066F3D0AD for ; Sun, 22 Sep 2024 19:54:11 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=65.21.191.19 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727034854; cv=none; b=WmvkgKL5tt1aw7yLhb8XnE/A5r02tGIhuhDVzwIfyog8Zbgz3ZSW5/j74fu/ixibMTbJQPighLMepNDKvAQJVMquBeg+Xx/+laX9Z5hhB8D9CMXpAX22Z9K0vPkooQ9xY8p/Uxt6438ihTl1qa3m56/j1rgtNHsl8XLLJV9efUw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727034854; c=relaxed/simple; bh=Ku9rlVBSDy+FhHpLgE13O06Jgvb193TlgfqFQQ7Bffg=; h=Message-ID:Subject:From:To:Cc:Date:In-Reply-To:References: Content-Type:MIME-Version; b=gaCJSvndv6E8oKGfOzNrVhLXdr1y57zUeW3waO6vfBToqBh7SGdMXSKGFDhC+g83jbwt8j+NeitRFjHbynnFYmOCefS2trMDuY5x05tIUtsAFV7XrdXvon9H+PnEuQ4d2TnfTzSsyjrdOIJ87HO1nTgbCyN6ywbVOi0Mv9u0Dz4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=decadent.org.uk; spf=pass smtp.mailfrom=decadent.org.uk; arc=none smtp.client-ip=65.21.191.19 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=decadent.org.uk Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=decadent.org.uk Received: from [2a02:578:851f:1502:391e:c5f5:10e2:b9a3] (helo=deadeye) by maynard with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1ssSef-009Lvn-2y; Sun, 22 Sep 2024 19:54:01 +0000 Received: from ben by deadeye with local (Exim 4.98) (envelope-from ) id 1ssSef-00000005w4i-1urn; Sun, 22 Sep 2024 21:54:01 +0200 Message-ID: Subject: Re: kernel: hpet_acpi_add: no address or irqs in _CRS From: Ben Hutchings To: Clemens Ladisch Cc: 1041484@bugs.debian.org, Al Ma , LKML Date: Sun, 22 Sep 2024 21:53:57 +0200 In-Reply-To: <5183ae1168b9661a6c31a15b02802db6@mail.rambler.ru> References: <5183ae1168b9661a6c31a15b02802db6@mail.rambler.ru> Content-Type: multipart/signed; micalg="pgp-sha512"; protocol="application/pgp-signature"; boundary="=-fE7iLVxKZGmyrAuNnwoE" User-Agent: Evolution 3.53.3-1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2a02:578:851f:1502:391e:c5f5:10e2:b9a3 X-SA-Exim-Mail-From: ben@decadent.org.uk X-SA-Exim-Scanned: No (on maynard); SAEximRunCond expanded to false --=-fE7iLVxKZGmyrAuNnwoE Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Wed, 2023-07-19 at 15:04 +0000, Al Ma wrote: > Package: linux-image-6.1.0-10-amd64 > Version: 6.1.37-1 > In the journal of a laptop Lenovo ThinkPad T14s Gen1, connected to a dock= ing station ThinkPad Thunderbolt 3 Dock Gen 2/Workstation Dock Gen 2 Type 4= 0 AN (which is powered by a 135 W AC Adapter ADL135NCC3A) and to a monitor = Philips 275B1 via a HMDI cable, we discovered the following warning (last l= ine is yellow) generated at boot: [...] > Jul 19 16:20:34 AnonymizedLenovoThinkPadT14s kernel: hpet_acpi_add: no ad= dress or irqs in _CRS [...] This was also reported as appearing on Lenovo ThinkPad T14 gen 4 running Linux 6.10. I searched for the warning on lore.kernel.org and found that it also appeared on: - Dell XPS 13 9360/0596KF, Linux 6.9-6.11 - Intel NUC12WSHi7/NUC12WSBi7, Linux 6.11 - Lenovo IdeaPad 82MG, Linux 6.1 - Lenovo ThinkPad T480, Linux 6.10 - System76 Pangolin, Linux 6.11 Is this likely to be a bug in the driver, or in the firmware? If this is a common case where the HPET isn't available and has an incomplete description in the ACPI table, should the warning message be downgraded to info level? Ben. --=20 Ben Hutchings The two most common things in the universe are hydrogen and stupidity. --=-fE7iLVxKZGmyrAuNnwoE Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEErCspvTSmr92z9o8157/I7JWGEQkFAmbwddUACgkQ57/I7JWG EQnGLBAA0ubWXFBTvdGumM/FYCptQQZtdLL/AlXfR29B/XsoA3EWrucwJ07EcSDF gsV+owSTyx5lfKoc6pGyOK43R4Nv1AV4DSYvpKg7WlAbYCzMbtts6GKNw1LG5X8x hhMgXoGjDhyR98c7lxvXNQgohyXEZG+AJrlNwSH3NkRYSKMJZvL9NhSF7UrDDF7I DAqu59p90z890cufonwB6qW9q07wdK/b3+ToXowPdKg2XEE3bGxDwy56EZ0f81aG WItx4OBoH3onO+ul5gIokLvsb4yZ+8GgwTdwIdeujr8T9Zm3j9/N+rXnvMPSTlax fDzOPb8PT/pQ9Ma57O4+B5bdwQhUX6hK/AjAf5C0Xu0qsaluPZzVLIEkQ55nfcQd lzaq8WUgR3Vp/7yA19UvkvheHv9+xj6jG6jCzA9y0c0b5dGeZYDEKGpW29mj1DPV QR9N1NN4jLOpE4WQprj1Gty1Y0T7xTsbtUYDx46sn7CKoa34ZX0GXHwdrED5t84s FYEBE0BeIxX2k61q9b708DaRp4ThUmUu5Z1zHLzpe+AHFm15iN8aoepMIdP/dLfD XS+zEfTU3+yIoMg31cTIZ9shCelmXK/eCieKCTrTrqQku9dZ3QPzFaEjo3+nNmDh 2gIJXH8kj7sLhjA4HH4j4Yj+ImyFpXSiXvehFOlJWingaz8q8gg= =+PvT -----END PGP SIGNATURE----- --=-fE7iLVxKZGmyrAuNnwoE--