From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C0BF6C433E6 for ; Mon, 1 Mar 2021 18:50:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7777264DE0 for ; Mon, 1 Mar 2021 18:50:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235075AbhCAStl (ORCPT ); Mon, 1 Mar 2021 13:49:41 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37926 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240320AbhCASpz (ORCPT ); Mon, 1 Mar 2021 13:45:55 -0500 Received: from mail.sf-mail.de (mail.sf-mail.de [IPv6:2a01:4f8:1c17:6fae:616d:6c69:616d:6c69]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 386DFC061794 for ; Mon, 1 Mar 2021 10:45:12 -0800 (PST) Received: (qmail 19567 invoked from network); 1 Mar 2021 18:45:08 -0000 Received: from p548d494d.dip0.t-ipconnect.de ([::ffff:84.141.73.77]:33936 HELO daneel.sf-tec.de) (auth=eike@sf-mail.de) by mail.sf-mail.de (Qsmtpd 0.37dev) with (TLS_AES_256_GCM_SHA384 encrypted) ESMTPSA for ; Mon, 01 Mar 2021 19:45:08 +0100 From: Rolf Eike Beer To: linux-parisc Subject: Re: Cycle offset is larger than allowed by the 'jiffies' clock's max_cycles value Date: Mon, 01 Mar 2021 19:44:58 +0100 Message-ID: <2570738.mvXUDI8C0e@daneel.sf-tec.de> In-Reply-To: <5693583.lOV4Wx5bFT@eto.sf-tec.de> References: <11708426.O9o76ZdvQC@eto.sf-tec.de> <5693583.lOV4Wx5bFT@eto.sf-tec.de> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="nextPart11703944.O9o76ZdvQC"; micalg="pgp-sha1"; protocol="application/pgp-signature" Precedence: bulk List-ID: X-Mailing-List: linux-parisc@vger.kernel.org --nextPart11703944.O9o76ZdvQC Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="iso-8859-1" Am Montag, 1. M=E4rz 2021, 17:49:42 CET schrieb Rolf Eike Beer: > Am Montag, 1. M=E4rz 2021, 17:25:18 CET schrieb Rolf Eike Beer: > > After upgrade to 5.11 get this multiple times per second on my C8000: > >=20 > > [ 36.998702] WARNING: timekeeping: Cycle offset (29) is larger than > > allowed by the 'jiffies' clock's max_cycles value (10): time overflow > > danger [ 36.998705] timekeeping: Your kernel is sick, but tr= ies > > to cope by capping time updates >=20 > Not 5.11, but 5.10.11. 5.10.4 is fine. It could be a bad upgrade attempt, > I'll retry once I have built a proper 5.11 kernel. Ok, it's there also in 5.11.2: [ 0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 2= 5=20 jiffies. [ 0.000000] NR_IRQS: 128 [ 0.000003] sched_clock: 64 bits at 1000MHz, resolution 1ns, wraps every= =20 4398046511103ns [ 0.106687] WARNING: timekeeping: Cycle offset (26) is larger than allow= ed=20 by the 'jiffies' clock's max_cycles value (10): time overflow danger [ 0.106698] timekeeping: Your kernel is sick, but tries to cope= by=20 capping time updates --nextPart11703944.O9o76ZdvQC Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part. Content-Transfer-Encoding: 7Bit -----BEGIN PGP SIGNATURE----- iF0EABECAB0WIQSaYVDeqwKa3fTXNeNcpIk+abn8TgUCYD02KgAKCRBcpIk+abn8 TrnZAJ4kBKgk7yMow4Ok9EkadL9pesbbiQCghOWrvuw3lExTB6hYvpWwxX1MN4c= =+bCZ -----END PGP SIGNATURE----- --nextPart11703944.O9o76ZdvQC--