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=-5.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 0003FC4727F for ; Fri, 25 Sep 2020 05:15:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B933C2176B for ; Fri, 25 Sep 2020 05:15:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1601010923; bh=gITMPtp3ExGoR3BhfhY50MjD89uQRzuT6Ejx0okOPWc=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=KD7JAdb6rAJ6/m84dMA4JfliGhV71iRXjo+k91Oq8h8ti97P1I6HxtAkCzretIEad fDp9haI4R/GUYsNQLkGJ3GTx8uKFo7GU61FPrzm59Z/MH1wN8VEoo0SSEtXvalXi/r UPP2ONBYV4dZlcw3btBjPFqP4K5ECSrn/EQSwt6U= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727108AbgIYFPW (ORCPT ); Fri, 25 Sep 2020 01:15:22 -0400 Received: from mail.kernel.org ([198.145.29.99]:36452 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726925AbgIYFPW (ORCPT ); Fri, 25 Sep 2020 01:15:22 -0400 Received: from localhost (83-86-74-64.cable.dynamic.v4.ziggo.nl [83.86.74.64]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 4EB4E208B6; Fri, 25 Sep 2020 05:15:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1601010922; bh=gITMPtp3ExGoR3BhfhY50MjD89uQRzuT6Ejx0okOPWc=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=PZZ2q2Nxa5IGI0xpxs/ZehF7omKALs2rdztMvg9fngAJlEuuoh8bRZvKl9DjjuvD6 UJSAUI4tUaud99FbRAH+wVJycVWbtPxo9PiJlOWnLmzZx56EjM9X7qHcg+Dvn4Wk9q fQqGD0coIZQ9p/iYrMU1Fo2MnHPp9iAInEM3sItQ= Date: Fri, 25 Sep 2020 07:15:18 +0200 From: Greg Kroah-Hartman To: Naresh Kamboju Cc: Joel Fernandes , Steven Rostedt , Peter Zijlstra , Namhyung Kim , LKML , linux- stable , Sasha Levin , Masami Hiramatsu , LTP List , lkft-triage@lists.linaro.org Subject: Re: [stable 4.19] [PANIC]: tracing: Centralize preemptirq tracepoints and unify their usage Message-ID: <20200925051518.GA605188@kroah.com> References: <20180823023839.GA13343@shao2-debian> <20180828195347.GA228832@joelaf.mtv.corp.google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Sep 25, 2020 at 10:13:05AM +0530, Naresh Kamboju wrote: > >From stable rc 4.18.1 onwards to today's stable rc 4.19.147 > > There are two problems while running LTP tracing tests > 1) kernel panic on i386, qemu_i386, x86_64 and qemu_x86_64 [1] > 2) " segfault at 0 ip " and "Code: Bad RIP value" on x86_64 and qemu_x86_64 [2] > Please refer to the full test logs from below links. > > The first bad commit found by git bisect. > commit: c3bc8fd637a9623f5c507bd18f9677effbddf584 > tracing: Centralize preemptirq tracepoints and unify their usage > > Reported-by: Naresh Kamboju So this also is reproducable in 5.4 and Linus's tree right now? Or are newer kernels working fine? thanks, greg k-h