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=-2.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 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 662EFC3A589 for ; Tue, 20 Aug 2019 08:50:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3FD2A20644 for ; Tue, 20 Aug 2019 08:50:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729719AbfHTIuB (ORCPT ); Tue, 20 Aug 2019 04:50:01 -0400 Received: from Galois.linutronix.de ([193.142.43.55]:51133 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729690AbfHTIuA (ORCPT ); Tue, 20 Aug 2019 04:50:00 -0400 Received: from p5de0b6c5.dip0.t-ipconnect.de ([93.224.182.197] helo=nanos) by Galois.linutronix.de with esmtpsa (TLS1.2:DHE_RSA_AES_256_CBC_SHA256:256) (Exim 4.80) (envelope-from ) id 1hzzpz-0007TS-B4; Tue, 20 Aug 2019 10:49:55 +0200 Date: Tue, 20 Aug 2019 10:49:49 +0200 (CEST) From: Thomas Gleixner To: Arul Jeniston cc: viro@zeniv.linux.org.uk, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, arul_mc@dell.com Subject: Re: [PATCH] FS: timerfd: Fix unexpected return value of timerfd_read function. In-Reply-To: Message-ID: References: <20190816083246.169312-1-arul.jeniston@gmail.com> User-Agent: Alpine 2.21 (DEB 202 2017-01-01) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII X-Linutronix-Spam-Score: -1.0 X-Linutronix-Spam-Level: - X-Linutronix-Spam-Status: No , -1.0 points, 5.0 required, ALL_TRUSTED=-1,SHORTCIRCUIT=-0.0001 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Arul, A: Because it messes up the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing in e-mail? A: No. Q: Should I include quotations after my reply? http://daringfireball.net/2007/07/on_top On Tue, 20 Aug 2019, Arul Jeniston wrote: > Agreed. Please find the dmesg output below. We see the problem on > [1456773.366951]. > Let us know if you find anything suspicious. The most suspicious thing is: > [ 0.000000] Linux version 4.9.0-8-amd64 ^^^^^ IOW, a (dead) kernel, which does not contain the new TSC ADJUST verification mechanism. If you send patches against mainline in future, then please always verify that the problem persists with the mainline kernel. Can you please boot something more recent - at least 4.19 LTS - on that machine and let it run for a couple of days to check whether there are 'TSC ADJUST' related entries in dmesg? Thanks, tglx