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 34142C432BE for ; Thu, 26 Aug 2021 14:31:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 11E0C60EBC for ; Thu, 26 Aug 2021 14:31:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232559AbhHZOb7 (ORCPT ); Thu, 26 Aug 2021 10:31:59 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60620 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231458AbhHZOb6 (ORCPT ); Thu, 26 Aug 2021 10:31:58 -0400 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 94287C061757 for ; Thu, 26 Aug 2021 07:31:10 -0700 (PDT) Received: (qmail 7755 invoked from network); 26 Aug 2021 14:30:33 -0000 Received: from mail.sf-mail.de ([2a01:4f8:1c17:6fae:616d:6c69:616d:6c69]:43188 HELO webmail.sf-mail.de) (auth=eike@sf-mail.de) by mail.sf-mail.de (Qsmtpd 0.38dev) with (TLS_AES_256_GCM_SHA384 encrypted) ESMTPSA for ; Thu, 26 Aug 2021 16:30:33 +0200 MIME-Version: 1.0 Date: Thu, 26 Aug 2021 16:30:33 +0200 From: Rolf Eike Beer To: linux-parisc Subject: Re: Cycle offset is larger than allowed by the 'jiffies' clock's max_cycles value In-Reply-To: <2191464.ElGaqSPkdT@daneel.sf-tec.de> References: <11708426.O9o76ZdvQC@eto.sf-tec.de> <2573804.mvXUDI8C0e@daneel.sf-tec.de> <2191464.ElGaqSPkdT@daneel.sf-tec.de> User-Agent: Roundcube Webmail/1.4.11 Message-ID: X-Sender: eike-kernel@sf-tec.de Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-parisc@vger.kernel.org Am 2021-03-14 13:08, schrieb Rolf Eike Beer: > Am Sonntag, 14. März 2021, 12:16:11 CET schrieben Sie: >> On 3/14/21 10:47 AM, Rolf Eike Beer wrote: >> > Am Mittwoch, 3. März 2021, 15:29:42 CET schrieb Helge Deller: >> >> On 3/1/21 7:44 PM, Rolf Eike Beer wrote: >> >>> Am Montag, 1. März 2021, 17:49:42 CET schrieb Rolf Eike Beer: >> >>>> Am Montag, 1. März 2021, 17:25:18 CET schrieb Rolf Eike Beer: >> >>>>> After upgrade to 5.11 get this multiple times per second on my C8000: >> >>>>> >> >>>>> [ 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 >> >>>>> tries >> >>>>> to cope by capping time updates >> >> >> >> I know I have seen this at least once with a 32-bit kernel in qemu as >> >> well.... >> >> >> >>>> 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: >> >> You don't see it in 5.11, but in 5.11.2. >> >> Sadly none of the changes between those versions seem related >> >> to this problem. >> >> >> >> Do you still see this? >> >> I'd like to get it anaylzed/fixed. >> > >> > Me too. What do you need? >> >> I actually don't know. >> First of all it would be great if we could reproduce it. >> Right now I don't see this issue any longer, so I have nowhere to >> start >> from. > > I get it every time if I boot that kernel. I still see it in 5.13.12, so I'm in the bad situation now that I don't have a working kernel on that machine anymore and need to think about how to restore it. While the latter is exactly my problem I would still love to see the kernel problem solved.